Ones and Zero

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Details

Founded:
2024
Hourly Rates:
< $25 / hr
Employees:
10 - 49
Ratings:
4.2 9 Reviews

Industries Served

Manufacturing Logistics & Supply Chain Advertising & Marketing Construction Media & Entertainment Healthcare Mining & Metals Telecommunications

Where We Specialize

20% AI Development
AI Development 20%
Mobile App Development 19%
Software Development 19%
Web Design 13%
Bot Development 9%
Web Development 8%
Virtual Reality 6%
UI/UX 6%

Industry Expertise

Hospitality43% Travel39% Healthcare18%

Typical Project Size

49% Small Business
28% Midmarket Business
23% Enterprise

About

Businesses looking for a reliable technology partner often consider Ones and Zero. Their core services include Web Development and UI/UX Design. The company operates with a team of 10 - 49 professionals. Projects are generally billed around < $25 / hr/hr. This gives a quick snapshot of what to expect when working with Ones and Zero.

Ones and Zero Reviews

4.2 9 Reviews
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Would happily work with them again

Harsh Iyer / Managing Director | Sep 30, 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.

The result looks great and performs well, and our internal team found it easy to take over. We are already discussing the next phase with them.

Project summary

We engaged Ones and Zero to rebuild our existing mobile app, which had poor reviews and frequent crashes. The work covered requirements, design, development, testing and launch support. The engagement ran for about 8 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$10,000 to $49,999
Project Duration:
Jan 2026 - Sep 2026
Business Type:
Manufacturing
Location:
Jaipur, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Managing Director at Vertex Industries Pvt Ltd. We operate in Manufacturing and most of our customers are in and around Jaipur, India.
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 our existing mobile app, which had poor reviews and frequent crashes.
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?
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?
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?
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?
Customer feedback has been positive, and we have seen better engagement since going live.
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.

Great Experience With Ones and Zero on Our Web Development Project

Rahul Mehta / Chief Digital Officer | Aug 29, 2026

We were happy with the final result. We dealt with the same core team throughout, so we did not have to keep re-explaining things. 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.

Since launch, everything has been stable and our team has adapted to it quickly. Their team changed one developer midway, which slowed things down for a couple of weeks.

I would recommend Ones and Zero to anyone looking for a dependable Web Development partner.

Project summary

Our company worked with Ones and Zero to build a customer portal where clients can log in, track orders and download invoices. The project was split into milestones, with a working build shared at the end of each one. The project took roughly 2 months from kickoff to launch.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$500,000+
Project Duration:
May 2026 - Jul 2026
Business Type:
Logistics & Supply Chain
Location:
Jaipur, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Chief Digital Officer at Oakline Logistics. We operate in Logistics & Supply Chain and most of our customers are in and around Jaipur, India.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to build a customer portal where clients can log in, track orders and download invoices before our busy season.
What services did the company provide for your project?
Web Development, plus QA and some consulting on how to structure the project.
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?
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?
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, on time and within budget.
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?
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 Web Development partner.

Delivered on time and stayed involved after launch

Amit Mehta / Managing Director | Jul 21, 2026

We were very happy with how this project went. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. The developers were knowledgeable and made a few suggestions that ended up saving us time and money.

Feedback from our customers has been very positive so far.

I would recommend Ones and Zero to anyone looking for a dependable Web Development partner.

Project summary

We engaged Ones and Zero to build a customer portal where clients can log in, track orders and download invoices. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 8-month engagement.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$10,000 to $49,999
Project Duration:
Oct 2025 - Jun 2026
Business Type:
Advertising & Marketing
Location:
Hyderabad, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Managing Director at Kinetic Creative, a Advertising & Marketing company based in Hyderabad, India. 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 had tried to do this internally and it stalled. We needed specialists to build a customer portal where clients can log in, track orders and download invoices.
What services did the company provide for your project?
Web Development, including planning, development, testing and launch support.
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?
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?
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?
We can now handle more volume without adding staff, which was the main goal.
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.

Skilled Mobile App Development Team That Understood Our Business

Julie Roy / Founder | May 22, 2026

Ones and Zero did an excellent job for us. 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. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

It has made a real difference to how our team works day to day. We are already discussing the next phase with them.

Project summary

Ones and Zero was brought in to develop a field-staff app with offline mode that syncs back to our main system. They also took care of integrations with a couple of third-party tools we already used. The project took roughly 9 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$150,000 to $499,999
Project Duration:
Jul 2025 - Apr 2026
Business Type:
Construction
Location:
Waterloo, Canada

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Founder at Crestview Construction. We operate in Construction and most of our customers are in and around Waterloo, Canada.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to develop a field-staff app with offline mode that syncs back to our main system before our busy season.
What services did the company provide for your project?
Mobile App Development, plus QA and some consulting on how to structure the project.
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?
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?
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. 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?
Yes, I would recommend them and we plan to work with them again.

Solid UI/UX Design Work With Clear Communication Throughout

Sneha Reddy / CEO | May 18, 2026

We were happy with the final result. 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. The developers were knowledgeable and made a few suggestions that ended up saving us time and money.

We launched on schedule and have not had any major issues since. We had to follow up a few times on smaller bug fixes after launch.

Happy to recommend them.

Project summary

We engaged Ones and Zero to run user research and create new designs for our mobile app. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 3-month engagement.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
UI/UX Design
Project Cost:
$50,000 to $149,999
Project Duration:
Jan 2026 - Apr 2026
Business Type:
Media & Entertainment
Location:
Noida, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the CEO at Nimbus Entertainment Pvt Ltd, a Media & Entertainment company based in Noida, India. 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 had tried to do this internally and it stalled. We needed specialists to run user research and create new designs for our mobile app.
What services did the company provide for your project?
Mainly UI/UX Design. 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?
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?
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?
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?
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?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Definitely. We have already started talking about the next phase.

Honest advice and solid execution

Niamh Walsh / Director | Apr 23, 2026

Ones and Zero did good work for us, and we would use them again. 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. 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.

The result looks great and performs well, and our internal team found it easy to take over. We had to follow up a few times on smaller bug fixes after launch. We would definitely work with them again.

Project summary

We hired Ones and Zero to build a custom operations platform to replace the spreadsheets and email threads we were running the business on. They worked alongside our in-house team, which mostly handled business requirements and testing. We worked together for around 3 months.

  • Overall Rating 4.0
  • Quality 3.5
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Software Development
Project Cost:
Less than $10,000
Project Duration:
Dec 2025 - Mar 2026
Business Type:
Advertising & Marketing
Location:
Cork, Ireland

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Director at Summit Marketing Ltd, a Advertising & Marketing company based in Cork, Ireland. 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?
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?
Software Development, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
We compared three or four agencies. Ones and Zero asked the best questions and had good reviews from past clients.
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?
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?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Definitely. We have already started talking about the next phase.

Quality work, a little slower than we planned

Darragh Kelly / Head of Engineering | Feb 22, 2026

We got a good result in the end, but the road there had a few bumps. Their project manager kept things organised and was quick to flag anything that might affect the timeline. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

We launched on schedule and have not had any major issues since. There were some early misunderstandings on requirements that took a few rounds to sort out. I would recommend Ones and Zero to anyone looking for a dependable UI/UX Design partner.

Project summary

We hired Ones and Zero to run user research and create new designs for our mobile app. The project was split into milestones, with a working build shared at the end of each one. We worked together for around 9 months.

  • Overall Rating 3.5
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
UI/UX Design
Project Cost:
$50,000 to $149,999
Project Duration:
Apr 2025 - Jan 2026
Business Type:
Healthcare
Location:
Cork, Ireland

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Healthcare company based in Cork, Ireland. I'm the Head of Engineering 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 run user research and create new designs for our mobile app so they could focus on customers.
What services did the company provide for your project?
End-to-end UI/UX Design — 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?
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?
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?
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. They are a reliable UI/UX Design partner.

Exceeded our expectations on quality and communication

Tobias Müller / Marketing Director | Feb 18, 2026

Ones and Zero did an excellent job for us. They were upfront about what was realistic within our budget, which helped us prioritise the right features. 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.

We are already seeing better numbers than before the project. Happy to recommend them.

Project summary

We engaged Ones and Zero to add an AI chatbot to our support site that answers questions from our help docs. 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 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$50,000 to $149,999
Project Duration:
Jun 2025 - Jan 2026
Business Type:
Mining & Metals
Location:
Hamburg, Germany

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Mining & Metals company based in Hamburg, Germany. I'm the Marketing 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 add an AI chatbot to our support site that answers questions from our help docs.
What services did the company provide for your project?
Mainly AI & Machine Learning. 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?
We compared three or four agencies. Ones and Zero asked the best questions and had good reviews from past clients.
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?
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?
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. They are a reliable AI & Machine Learning partner.

Good results, communication improved as the project went on

Kelly Hughes / Engineering Manager | Jan 14, 2026

We got a good result in the end, but the road there had a few bumps. 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. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

We launched on schedule and have not had any major issues since. Documentation at handover was a bit thin and we had to ask for more detail. Happy to recommend them.

Project summary

Ones and Zero was brought in to build iOS and Android apps for our customers, including booking, payments and push notifications. They also took care of integrations with a couple of third-party tools we already used. We worked together for around 8 months.

  • Overall Rating 3.5
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$150,000 to $499,999
Project Duration:
Apr 2025 - Dec 2025
Business Type:
Telecommunications
Location:
Chicago, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Maple Networks is a Telecommunications business in Chicago, USA. As Engineering Manager, I was responsible for this project on our side and the main contact for Ones and Zero.
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 iOS and Android apps for our customers, including booking, payments and push notifications so they could focus on customers.
What services did the company provide for your project?
Mainly Mobile App 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?
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?
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?
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?
Definitely. We have already started talking about the next phase.
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