Quoin Inc.

Visit Website Write a Review Claim this Company

Details

Founded:
2017
Hourly Rates:
$100 - $149 / hr
Employees:
50 - 249
Ratings:
4.2 10 Reviews

Industries Served

Aerospace & Defense Telecommunications Financial Services Logistics & Supply Chain Travel & Hospitality Sports & Fitness Human Resources Education

Where We Specialize

19% Web Development
Web Development 19%
Virtual Reality 17%
Software Development 16%
Bot Development 16%
AI Development 13%
Mobile App Development 12%
Augmented Reality 7%

Industry Expertise

Real Estate100%

Typical Project Size

50% Enterprise
32% Midmarket Business
18% Small Business

About

Quoin Inc. works with clients to plan, build, and ship digital products. The company's main offerings are Web Development and Mobile App Development. Quoin Inc. employs 50 - 249 people. Typical hourly rates run around $100 - $149 / hr/hr. Their home base is Boston, MA. This profile is a starting point — reach out to Quoin Inc. directly to discuss project specifics.

Quoin Inc. Reviews

4.2 10 Reviews
Submit Review

A reliable long-term partner for our tech needs

Brandon Henderson / Managing Director | Oct 14, 2026

We were happy with the final result. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

The result looks great and performs well, and our internal team found it easy to take over. A couple of milestones slipped by a week or so, mostly around testing. We are already discussing the next phase with them.

Project summary

We engaged Quoin Inc. to develop a field-staff app with offline mode that syncs back to our main system. Scope included discovery workshops, development in two-week sprints and a short support period after launch. Overall it was a 7-month engagement.

  • Overall Rating 4.0
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
Less than $10,000
Project Duration:
Feb 2026 - Sep 2026
Business Type:
Aerospace & Defense
Location:
Austin, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Managing Director at Keystone Aviation, a Aerospace & Defense company based in Austin, USA. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
We needed to develop a field-staff app with offline mode that syncs back to our main system, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
End-to-end Mobile App Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
They had relevant experience in Aerospace & Defense and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Aerospace & Defense clients before.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
Our team saves several hours a week, and we have had very few issues since launch.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Strong Technical Skills and a Very Responsive Mobile App Development Team

Amit Gupta / Co-Founder & CTO | Aug 10, 2026

I would rate this engagement highly on almost every front. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

Feedback from our customers has been very positive so far.

Overall, a team we trust and plan to keep working with.

Project summary

We hired Quoin Inc. to rebuild our existing mobile app, which had poor reviews and frequent crashes. The project was split into milestones, with a working build shared at the end of each one. The project took roughly 7 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$10,000 to $49,999
Project Duration:
Dec 2025 - Jul 2026
Business Type:
Telecommunications
Location:
Kolkata, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Telecommunications company based in Kolkata, India. I'm the Co-Founder & CTO and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to rebuild our existing mobile app, which had poor reviews and frequent crashes so they could focus on customers.
What services did the company provide for your project?
Mobile App Development, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.
How clearly did the company understand your requirements and business goals?
Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
It was delivered on time, and the final invoice matched the original estimate.
What tangible results or business impact have you seen since the project was completed?
Our team saves several hours a week, and we have had very few issues since launch.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable Mobile App Development partner.

Honest advice and solid execution

Rachel Goh / VP of Engineering | Aug 05, 2026

The project went well overall. When we changed our minds on a couple of features halfway through, they handled it without fuss and were clear about the impact on cost and timeline. They shared working builds regularly, so we could test early and give feedback before things were locked in. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

It has made a real difference to how our team works day to day. We had to follow up a few times on smaller bug fixes after launch. We would definitely work with them again.

Project summary

We engaged Quoin Inc. to build a custom operations platform to replace the spreadsheets and email threads we were running the business on. The project was split into milestones, with a working build shared at the end of each one. The engagement ran for about 5 months.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Software Development
Project Cost:
$50,000 to $149,999
Project Duration:
Jan 2026 - Jun 2026
Business Type:
Financial Services
Location:
Singapore

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as VP of Engineering at Harborview Lending Pte Ltd. We operate in Financial Services and most of our customers are in and around Singapore.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to build a custom operations platform to replace the spreadsheets and email threads we were running the business on so they could focus on customers.
What services did the company provide for your project?
Mainly Software Development. They also helped with the technical planning and a few integrations with our existing tools.
Why did you choose this company over other providers you considered?
Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable Software Development partner.

Capable Mobile App Development team — happy with the end result

Ananya Verma / CEO | Jul 15, 2026

The final product works well for us, although the process could have been smoother. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. Their project manager kept things organised and was quick to flag anything that might affect the timeline. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

Since launch, everything has been stable and our team has adapted to it quickly. A couple of milestones slipped by a week or so, mostly around testing.

We would definitely work with them again.

Project summary

We hired Quoin Inc. to rebuild our existing mobile app, which had poor reviews and frequent crashes. The project was split into milestones, with a working build shared at the end of each one. The engagement ran for about 8 months.

  • Overall Rating 3.5
  • Quality 4.0
  • Schedule 3.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$50,000 to $149,999
Project Duration:
Nov 2025 - Jul 2026
Business Type:
Logistics & Supply Chain
Location:
Kolkata, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Logistics & Supply Chain company based in Kolkata, India. I'm the CEO and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to rebuild our existing mobile app, which had poor reviews and frequent crashes so they could focus on customers.
What services did the company provide for your project?
End-to-end Mobile App Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
We compared three or four agencies. Quoin Inc. asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
It was delivered on time, and the final invoice matched the original estimate.
What tangible results or business impact have you seen since the project was completed?
It is still early, but the numbers are trending in the right direction and the system has been stable.
What did you like most about working with this company?
That they were proactive — they suggested improvements instead of just doing what was asked.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Would happily work with them again

Nikhil Menon / Co-Founder | Jul 02, 2026

I would rate this engagement highly on almost every front. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

The Mobile App Development work has already made a noticeable difference — tasks that used to take hours now take minutes. Overall, a team we trust and plan to keep working with.

Project summary

We hired Quoin Inc. to rebuild our existing mobile app, which had poor reviews and frequent crashes. They worked alongside our in-house team, which mostly handled business requirements and testing. The project took roughly 7 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.0
  • Schedule 5.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
Less than $10,000
Project Duration:
Oct 2025 - May 2026
Business Type:
Travel & Hospitality
Location:
Hyderabad, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Blue Harbor Hospitality is a Travel & Hospitality business in Hyderabad, India. As Co-Founder, I was responsible for this project on our side and the main contact for Quoin Inc..
What specific problem or business challenge led you to hire this company?
We needed to rebuild our existing mobile app, which had poor reviews and frequent crashes, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Mobile App Development, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.
How clearly did the company understand your requirements and business goals?
Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable Mobile App Development partner.

Good value and a team that genuinely cares about the result

Yousef Qureshi / IT Director | May 15, 2026

The project went well overall. They were upfront about what was realistic within our budget, which helped us prioritise the right features. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

It has made a real difference to how our team works day to day. A couple of milestones slipped by a week or so, mostly around testing. Overall, a team we trust and plan to keep working with.

Project summary

Our company worked with Quoin Inc. to rebuild an internal order management system that had outgrown its original design. Their team handled planning, development and QA, with our product owner signing off each milestone. The project took roughly 2 months from kickoff to launch.

  • Overall Rating 4.0
  • Quality 4.5
  • Schedule 3.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Software Development
Project Cost:
$500,000+
Project Duration:
Mar 2026 - May 2026
Business Type:
Telecommunications
Location:
Abu Dhabi, UAE

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Telecommunications company based in Abu Dhabi, UAE. I'm the IT Director and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to rebuild an internal order management system that had outgrown its original design.
What services did the company provide for your project?
End-to-end Software Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
A colleague recommended them, and our first calls confirmed they understood what we needed.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Telecommunications clients before.
How was your overall experience with their communication and project management?
Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
We can now handle more volume without adding staff, which was the main goal.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Definitely. We have already started talking about the next phase.

Delivered on time and stayed involved after launch

Anna Weber / Program Manager | May 02, 2026

I would rate this engagement highly on almost every front. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. They shared working builds regularly, so we could test early and give feedback before things were locked in. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

Feedback from our customers has been very positive so far.

Overall, a team we trust and plan to keep working with.

Project summary

We engaged Quoin Inc. to automate document data extraction that our team was doing by hand. Their team handled planning, development and QA, with our product owner signing off each milestone. The project took roughly 3 months from kickoff to launch.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$500,000+
Project Duration:
Jan 2026 - Apr 2026
Business Type:
Sports & Fitness
Location:
Stuttgart, Germany

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Sports & Fitness company based in Stuttgart, Germany. I'm the Program Manager and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to automate document data extraction that our team was doing by hand.
What services did the company provide for your project?
End-to-end AI & Machine Learning — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
We compared three or four agencies. Quoin Inc. asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
Our team saves several hours a week, and we have had very few issues since launch.
What did you like most about working with this company?
That they were proactive — they suggested improvements instead of just doing what was asked.
Would you recommend this company to others, and would you work with them again?
Yes, I would recommend them and we plan to work with them again.

Exceeded our expectations on quality and communication

Emily Barker / Co-Founder & CTO | Apr 27, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. Even with the time zone difference, responses usually came the same day and we never felt left in the dark.

Feedback from our customers has been very positive so far. We would definitely work with them again.

Project summary

Our company worked with Quoin Inc. to rebuild an internal order management system that had outgrown its original design. The project was split into milestones, with a working build shared at the end of each one. The engagement ran for about 9 months.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Software Development
Project Cost:
Less than $10,000
Project Duration:
Jun 2025 - Mar 2026
Business Type:
Logistics & Supply Chain
Location:
Cambridge, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Cobalt Transport Ltd is a Logistics & Supply Chain business in Cambridge, UK. As Co-Founder & CTO, I was responsible for this project on our side and the main contact for Quoin Inc..
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to rebuild an internal order management system that had outgrown its original design.
What services did the company provide for your project?
Mainly Software Development. They also helped with the technical planning and a few integrations with our existing tools.
Why did you choose this company over other providers you considered?
They had relevant experience in Logistics & Supply Chain and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
Well. There were a couple of points we had to clarify early on, but after that they were spot on.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
It is still early, but the numbers are trending in the right direction and the system has been stable.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Strong Technical Skills and a Very Responsive Software Development Team

Megan Fisher / General Manager | Jan 29, 2026

Overall we had a good experience working with Quoin Inc.. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. Their project manager kept things organised and was quick to flag anything that might affect the timeline. Even with the time zone difference, responses usually came the same day and we never felt left in the dark.

The Software Development work has already made a noticeable difference — tasks that used to take hours now take minutes. Estimates on a few features were optimistic and those took longer than planned.

We are already discussing the next phase with them.

Project summary

We partnered with Quoin Inc. to build a custom operations platform to replace the spreadsheets and email threads we were running the business on. Scope included discovery workshops, development in two-week sprints and a short support period after launch. Overall it was a 9-month engagement.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Software Development
Project Cost:
$150,000 to $499,999
Project Duration:
Apr 2025 - Jan 2026
Business Type:
Human Resources
Location:
Atlanta, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Human Resources company based in Atlanta, USA. I'm the General Manager and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
We needed to build a custom operations platform to replace the spreadsheets and email threads we were running the business on, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Software Development, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
They had relevant experience in Human Resources and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Human Resources clients before.
How was your overall experience with their communication and project management?
Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Definitely. We have already started talking about the next phase.

Professional team that made a complex project feel manageable

Brandon Brooks / Co-Founder | Jan 21, 2026

The project went well overall. When we changed our minds on a couple of features halfway through, they handled it without fuss and were clear about the impact on cost and timeline. Their project manager kept things organised and was quick to flag anything that might affect the timeline. They shared working builds regularly, so we could test early and give feedback before things were locked in.

The Web Development work has already made a noticeable difference — tasks that used to take hours now take minutes. A couple of milestones slipped by a week or so, mostly around testing. Happy to recommend them.

Project summary

We partnered with Quoin Inc. to redesign and rebuild our company website on a modern stack. The project was split into milestones, with a working build shared at the end of each one. Overall it was a 2-month engagement.

  • Overall Rating 4.0
  • Quality 4.5
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$10,000 to $49,999
Project Duration:
Oct 2025 - Dec 2025
Business Type:
Education
Location:
Denver, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Education company based in Denver, USA. I'm the Co-Founder and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to redesign and rebuild our company website on a modern stack so they could focus on customers.
What services did the company provide for your project?
End-to-end Web Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
A colleague recommended them, and our first calls confirmed they understood what we needed.
How clearly did the company understand your requirements and business goals?
Well. There were a couple of points we had to clarify early on, but after that they were spot on.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
We can now handle more volume without adding staff, which was the main goal.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.
Get Listed