Stackss Reviews

Great Experience With Stackss on Our Mobile App Development Project

Raj Leblanc / CEO | Sep 18, 2026

Our experience with Stackss was really positive from start to finish. 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. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

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

I would recommend Stackss to anyone looking for a dependable Mobile App Development partner.

Project summary

We partnered with Stackss 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. Overall it was a 3-month engagement.

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

Project Type:: Mobile App Development
Project Cost:: $150,000 to $499,999
Project Duration:: May 2026 - Aug 2026
Business Type:: Gaming & Gambling
Location:: Ottawa, Canada

Questions & Answers

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

I'm the CEO at Harborview Interactive, a Gaming & Gambling company based in Ottawa, Canada. 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 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, plus QA and some consulting on how to structure the project.

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

We compared three or four agencies. Stackss 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?

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.

Reliable Web Development Partner That Delivered What They Promised

Anna Becker / Chief Digital Officer | Aug 06, 2026

I would rate this engagement highly on almost every front. 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.

We are already seeing better numbers than before the project. We would definitely work with them again.

Project summary

Stackss was brought in to rebuild a slow, outdated web app and move it to a new framework. They also took care of integrations with a couple of third-party tools we already used. The engagement ran for about 7 months.

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

Project Type:: Web Development
Project Cost:: $500,000+
Project Duration:: Dec 2025 - Jul 2026
Business Type:: Media & Entertainment
Location:: Berlin, Germany

Questions & Answers

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

Keystone Pictures GmbH is a Media & Entertainment business in Berlin, Germany. As Chief Digital Officer, I was responsible for this project on our side and the main contact for Stackss.

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 a slow, outdated web app and move it to a new framework.

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?

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

How clearly did the company understand your requirements and business goals?

They understood our goals quickly, partly because they had worked with Media & Entertainment 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?

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

Thabo Naidoo / Director | Jul 17, 2026

Stackss did an excellent job for us. We dealt with the same core team throughout, so we did not have to keep re-explaining things. 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.

It has made a real difference to how our team works day to day.

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

Project summary

We partnered with Stackss 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 5-month engagement.

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

Project Type:: Web Development
Project Cost:: Less than $10,000
Project Duration:: Dec 2025 - May 2026
Business Type:: Nonprofit & NGO
Location:: Johannesburg, South Africa

Questions & Answers

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

We're a mid-sized Nonprofit & NGO company based in Johannesburg, South Africa. I'm the Director 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?

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?

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?

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?

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 team to work with — professional, responsive and reliable

Laura Becker / Project Manager | May 31, 2026

We were very happy with how this project went. Their project manager kept things organised and was quick to flag anything that might affect the timeline. They were upfront about what was realistic within our budget, which helped us prioritise the right features. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

We launched on schedule and have not had any major issues since. Happy to recommend them.

Project summary

We hired Stackss to automate document data extraction that our team was doing by hand. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 4-month engagement.

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

Project Type:: AI & Machine Learning
Project Cost:: $50,000 to $149,999
Project Duration:: Nov 2025 - Mar 2026
Business Type:: Fashion & Apparel
Location:: Stuttgart, Germany

Questions & Answers

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

Oakline Wear GmbH is a Fashion & Apparel business in Stuttgart, Germany. As Project Manager, I was responsible for this project on our side and the main contact for Stackss.

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?

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 Fashion & Apparel 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?

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. They are a reliable AI & Machine Learning partner.

Would happily work with them again

Ruby Walker / Owner | May 26, 2026

I would rate this engagement highly on almost every front. 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. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

Feedback from our customers has been very positive so far. Overall, a team we trust and plan to keep working with.

Project summary

Stackss was brought in to automate document data extraction that our team was doing by hand. 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 5.0
Quality 4.5
Schedule 5.0
Project Cost 5.0
Willing To Refer 5.0

Project Type:: AI & Machine Learning
Project Cost:: $10,000 to $49,999
Project Duration:: Jun 2025 - Mar 2026
Business Type:: Insurance
Location:: Christchurch, New Zealand

Questions & Answers

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

I'm the Owner at Pinecrest Insurance Ltd, a Insurance company based in Christchurch, New Zealand. 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 automate document data extraction that our team was doing by hand, and we didn't have the in-house capacity to do it ourselves.

What services did the company provide for your project?

AI & Machine Learning, 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?

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?

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?

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.

Reliable Mobile App Development Partner That Delivered What They Promised

Sophie Edwards / Director | May 15, 2026

I would rate this engagement highly on almost every front. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. 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.

We are already discussing the next phase with them.

Project summary

Stackss was brought in to build iOS and Android apps for our customers, including booking, payments and push notifications. Scope included discovery workshops, development in two-week sprints and a short support period after launch. The project took roughly 4 months from kickoff to launch.

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

Project Type:: Mobile App Development
Project Cost:: $10,000 to $49,999
Project Duration:: Dec 2025 - Apr 2026
Business Type:: Logistics & Supply Chain
Location:: Manchester, UK

Questions & Answers

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

Sage Supply Ltd is a Logistics & Supply Chain business in Manchester, UK. As Director, I was responsible for this project on our side and the main contact for Stackss.

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 iOS and Android apps for our customers, including booking, payments and push notifications.

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?

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?

They understood our goals quickly, partly because they had worked with Logistics & Supply Chain 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?

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?

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

Great Experience With Stackss on Our Web Development Project

Chloe Thompson / Head of Digital | Apr 19, 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. They shared working builds regularly, so we could test early and give feedback before things were locked in. 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.

We are already seeing better numbers than before the project. There were some early misunderstandings on requirements that took a few rounds to sort out.

We would definitely work with them again.

Project summary

We hired Stackss to rebuild a slow, outdated web app and move it to a new framework. The work covered requirements, design, development, testing and launch support. The engagement ran for about 4 months.

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

Project Type:: Web Development
Project Cost:: $50,000 to $149,999
Project Duration:: Nov 2025 - Mar 2026
Business Type:: Real Estate
Location:: Toronto, Canada

Questions & Answers

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

I work as Head of Digital at Lakeshore Homes. We operate in Real Estate and most of our customers are in and around Toronto, Canada.

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

We needed to rebuild a slow, outdated web app and move it to a new framework, and we didn't have the in-house capacity to do it ourselves.

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?

They had relevant experience in Real Estate and their proposal was the clearest of the ones we received.

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?

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?

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.

Skilled Game Development Team That Understood Our Business

Maria Price / CEO | Apr 07, 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. The developers were knowledgeable and made a few suggestions that ended up saving us time and money.

Since launch, everything has been stable and our team has adapted to it quickly. We would definitely work with them again.

Project summary

We hired Stackss to build the multiplayer features for our existing game. Their team handled planning, development and QA, with our product owner signing off each milestone. The engagement ran for about 4 months.

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

Project Type:: Game Development
Project Cost:: Less than $10,000
Project Duration:: Oct 2025 - Feb 2026
Business Type:: Logistics & Supply Chain
Location:: Atlanta, USA

Questions & Answers

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

I'm the CEO at Lumen Freight, a Logistics & Supply Chain 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?

We had tried to do this internally and it stalled. We needed specialists to build the multiplayer features for our existing game.

What services did the company provide for your project?

Mainly Game 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?

They understood our goals quickly, partly because they had worked with Logistics & Supply Chain clients before.

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?

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

Honest advice and solid execution

Lerato van der Merwe / Senior Engineering Manager | Mar 27, 2026

Stackss did an excellent job for us. Their project manager kept things organised and was quick to flag anything that might affect the timeline. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. 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. Overall, a team we trust and plan to keep working with.

Project summary

We partnered with Stackss to build the multiplayer features for our existing game. The project was split into milestones, with a working build shared at the end of each one. We worked together for around 5 months.

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

Project Type:: Game Development
Project Cost:: $500,000+
Project Duration:: Sep 2025 - Feb 2026
Business Type:: Environmental Services
Location:: Cape Town, South Africa

Questions & Answers

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

I'm the Senior Engineering Manager at Redwood Green Solutions, a Environmental Services company based in Cape Town, South Africa. 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 build the multiplayer features for our existing game, and we didn't have the in-house capacity to do it ourselves.

What services did the company provide for your project?

Mainly Game 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 Environmental Services and their proposal was the clearest of the ones we received.

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?

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 would recommend them and we plan to work with them again.

Easy to work with and very transparent on timelines and cost

Ryan Price / Owner | Feb 15, 2026

Our experience with Stackss was really positive from start to finish. 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. They shared working builds regularly, so we could test early and give feedback before things were locked in.

We launched on schedule and have not had any major issues since. Happy to recommend them.

Project summary

Stackss was brought in to add an AI chatbot to our support site that answers questions from our help docs. Scope included discovery workshops, development in two-week sprints and a short support period after launch. The engagement ran for about 3 months.

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

Project Type:: AI & Machine Learning
Project Cost:: $10,000 to $49,999
Project Duration:: Sep 2025 - Dec 2025
Business Type:: Insurance
Location:: Denver, USA

Questions & Answers

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

Pioneer Assurance Inc is a Insurance business in Denver, USA. As Owner, I was responsible for this project on our side and the main contact for Stackss.

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

We needed to add an AI chatbot to our support site that answers questions from our help docs, and we didn't have the in-house capacity to do it ourselves.