jstack Reviews

Great Experience With jstack on Our Web Development Project

Charlotte Ahmed / Founder & CEO | Oct 18, 2026

We were happy with the final result. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

We are already seeing better numbers than before the project. 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 hired jstack to build a customer portal where clients can log in, track orders and download invoices. They worked alongside our in-house team, which mostly handled business requirements and testing. The project took roughly 5 months from kickoff to launch.

Overall Rating 4.0
Quality 4.0
Schedule 4.0
Project Cost 3.5
Willing To Refer 5.0

Project Type:: Web Development
Project Cost:: $150,000 to $499,999
Project Duration:: Apr 2026 - Sep 2026
Business Type:: Insurance
Location:: Manchester, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.

We're a mid-sized Insurance company based in Manchester, UK. I'm the Founder & CEO and I oversaw the project from start to finish.

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, 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?

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?

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?

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?

Yes, I would recommend them and we plan to work with them again.

Solid Web Development Work With Clear Communication Throughout

Daniel Qureshi / Operations Manager | Sep 01, 2026

We were very happy with how this project went. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

We are already seeing better numbers than before the project.

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

Project summary

We partnered with jstack to redesign and rebuild our company website on a modern stack. Their team handled planning, development and QA, with our product owner signing off each milestone. We worked together for around 2 months.

Overall Rating 5.0
Quality 4.5
Schedule 4.5
Project Cost 5.0
Willing To Refer 5.0

Project Type:: Web Development
Project Cost:: $50,000 to $149,999
Project Duration:: May 2026 - Jul 2026
Business Type:: Manufacturing
Location:: Abu Dhabi, UAE

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the Operations Manager at Northgate Components LLC, a Manufacturing company based in Abu Dhabi, UAE. 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 redesign and rebuild our company website on a modern stack, and we didn't have the in-house capacity to do it ourselves.

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?

They understood our goals quickly, partly because they had worked with Manufacturing clients before.

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?

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.

Solid delivery, though timelines needed some pushing

Carlos Hughes / Founder & CEO | Aug 08, 2026

The final product works well for us, although the process could have been smoother. They shared working builds regularly, so we could test early and give feedback before things were locked in. 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.

Since launch, everything has been stable and our team has adapted to it quickly. Documentation at handover was a bit thin and we had to ask for more detail. We are already discussing the next phase with them.

Project summary

We engaged jstack to build a custom operations platform to replace the spreadsheets and email threads we were running the business on. The work covered requirements, design, development, testing and launch support. The engagement ran for about 4 months.

Overall Rating 3.5
Quality 3.5
Schedule 3.5
Project Cost 4.0
Willing To Refer 5.0

Project Type:: Software Development
Project Cost:: $10,000 to $49,999
Project Duration:: Mar 2026 - Jul 2026
Business Type:: Nonprofit & NGO
Location:: New York, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I work as Founder & CEO at Greenfield Foundation Inc. We operate in Nonprofit & NGO and most of our customers are in and around New York, USA.

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?

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?

We compared three or four agencies. jstack 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?

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?

We can now handle more volume without adding staff, which was the main goal.

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?

Yes, I've already recommended them to a couple of people I know.

jstack Delivered a Quality IoT Development Solution on Time

Ananya Bose / CTO | Jul 26, 2026

jstack did good work for us, and we would use them again. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. 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.

It has made a real difference to how our team works day to day. Estimates on a few features were optimistic and those took longer than planned.

Happy to recommend them.

Project summary

We partnered with jstack to set up a sensor network and alerts for our cold storage facilities. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 2-month engagement.

Overall Rating 4.0
Quality 4.0
Schedule 4.5
Project Cost 4.0
Willing To Refer 5.0

Project Type:: IoT Development
Project Cost:: $50,000 to $149,999
Project Duration:: Mar 2026 - May 2026
Business Type:: Information Technology
Location:: Ahmedabad, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I work as CTO at Swift Tech. We operate in Information Technology and most of our customers are in and around Ahmedabad, India.

What specific problem or business challenge led you to hire this company?

We needed to set up a sensor network and alerts for our cold storage facilities, and we didn't have the in-house capacity to do it ourselves.

What services did the company provide for your project?

IoT Development, plus QA and some consulting on how to structure the project.

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?

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, 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?

Definitely. We have already started talking about the next phase.

Delivered on time and stayed involved after launch

Luke Taylor / Head of Digital | Jul 16, 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. We dealt with the same core team throughout, so we did not have to keep re-explaining things. Even with the time zone difference, responses usually came the same day and we never felt left in the dark.

We are already seeing better numbers than before the project.

Happy to recommend them.

Project summary

jstack was brought in to provide ongoing monitoring and support for our cloud infrastructure. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 6-month engagement.

Overall Rating 5.0
Quality 5.0
Schedule 5.0
Project Cost 5.0
Willing To Refer 5.0

Project Type:: IT Managed Services
Project Cost:: $150,000 to $499,999
Project Duration:: Nov 2025 - May 2026
Business Type:: Education
Location:: Melbourne, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the Head of Digital at Silverline Education, a Education company based in Melbourne, Australia. 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 provide ongoing monitoring and support for our cloud infrastructure so they could focus on customers.

What services did the company provide for your project?

IT Managed Services, including planning, development, testing and launch support.

Why did you choose this company over other providers you considered?

We compared three or four agencies. jstack asked the best questions and had good reviews from past clients.

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. 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?

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?

Yes, I would recommend them and we plan to work with them again.

jstack Delivered a Quality Web Development Solution on Time

Siddharth Gupta / Marketing Director | Jul 14, 2026

We were very happy with how this project went. They shared working builds regularly, so we could test early and give feedback before things were locked in. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

We are already seeing better numbers than before the project.

We would definitely work with them again.

Project summary

Our company worked with jstack to rebuild a slow, outdated web app and move it to a new framework. Their team handled planning, development and QA, with our product owner signing off each milestone. Overall it was a 4-month engagement.

Overall Rating 4.5
Quality 4.5
Schedule 4.5
Project Cost 4.5
Willing To Refer 5.0

Project Type:: Web Development
Project Cost:: $50,000 to $149,999
Project Duration:: Feb 2026 - Jun 2026
Business Type:: Telecommunications
Location:: Kolkata, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I work as Marketing Director at Copper Leaf Networks Pvt Ltd. We operate in Telecommunications and most of our customers are in and around Kolkata, India.

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 a slow, outdated web app and move it to a new framework so they could focus on customers.

What services did the company provide for your project?

Mainly Web 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?

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?

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?

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.

Honest advice and solid execution

Stephanie Foster / VP of Engineering | Jun 27, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. 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. They shared working builds regularly, so we could test early and give feedback before things were locked in.

The result looks great and performs well, and our internal team found it easy to take over.

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

Project summary

We partnered with jstack 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. We worked together for around 8 months.

Overall Rating 5.0
Quality 5.0
Schedule 5.0
Project Cost 5.0
Willing To Refer 5.0

Project Type:: Software Development
Project Cost:: $500,000+
Project Duration:: Oct 2025 - Jun 2026
Business Type:: Education
Location:: Denver, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the VP of Engineering at Trueline Academy, a Education company based in Denver, 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?

Our team was spending too much time on manual work. The goal was to rebuild an internal order management system that had outgrown its original design 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?

We compared three or four agencies. jstack 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?

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?

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?

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?

Yes, I've already recommended them to a couple of people I know.

Great team to work with — professional, responsive and reliable

Lauren Miller / Founder | Mar 27, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. We dealt with the same core team throughout, so we did not have to keep re-explaining things. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

We launched on schedule and have not had any major issues since. Overall, a team we trust and plan to keep working with.

Project summary

jstack was brought in to take over day-to-day IT support for our offices. Their team handled planning, development and QA, with our product owner signing off each milestone. The engagement ran for about 5 months.

Overall Rating 4.5
Quality 4.5
Schedule 4.0
Project Cost 4.5
Willing To Refer 5.0

Project Type:: IT Managed Services
Project Cost:: $10,000 to $49,999
Project Duration:: Sep 2025 - Feb 2026
Business Type:: Telecommunications
Location:: Atlanta, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the Founder at Kinetic Networks, a Telecommunications company based in Atlanta, 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?

Our existing setup was holding us back. We wanted to take over day-to-day IT support for our offices before our busy season.

What services did the company provide for your project?

Mainly IT Managed Services. 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, 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?

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.

Would happily work with them again

Harsh Iyer / Co-Founder & CTO | Mar 06, 2026

Overall we had a good experience working with jstack. 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. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

We are already seeing better numbers than before the project. We had to follow up a few times on smaller bug fixes after launch.

I would recommend jstack to anyone looking for a dependable AI & Machine Learning partner.

Project summary

We partnered with jstack to add an AI chatbot to our support site that answers questions from our help docs. The work covered requirements, design, development, testing and launch support. The project took roughly 7 months from kickoff to launch.

Overall Rating 4.0
Quality 3.5
Schedule 4.0
Project Cost 4.0
Willing To Refer 5.0

Project Type:: AI & Machine Learning
Project Cost:: Less than $10,000
Project Duration:: Jun 2025 - Jan 2026
Business Type:: Events & Event Management
Location:: Ahmedabad, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the Co-Founder & CTO at Crestview Events Pvt Ltd, a Events & Event Management company based in Ahmedabad, 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 add an AI chatbot to our support site that answers questions from our help docs.

What services did the company provide for your project?

AI & Machine Learning, plus QA and some consulting on how to structure the project.