One Devs

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Details

Founded:
2015
Hourly Rates:
< $25 / hr
Employees:
10 - 49
Ratings:
4.8 9 Reviews

Industries Served

Legal Services Manufacturing Media & Entertainment Mining & Metals Food & Beverage Environmental Services Gaming & Gambling Advertising & Marketing

Where We Specialize

15% Web Development
Web Development 15%
AI Development 15%
Cloud Computing Services 15%
Mobile App Development 13%
Ruby on Rails 13%
Software Development 11%
Game Development 11%
Bot Development 7%

Industry Expertise

Real Estate30% Hospitality28% Travel26% Entertainment16%

Typical Project Size

54% Midmarket Business
31% Small Business
15% Enterprise

About

One Devs works with clients to plan, build, and ship digital products. Their core services include Digital Marketing. The company operates with a team of 10 - 49 professionals. Typical hourly rates run around < $25 / hr/hr. One Devs operates out of Kolkata, India. These details offer a useful starting point when evaluating One Devs.

One Devs Reviews

4.8 9 Reviews
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Easy to work with and very transparent on timelines and cost

Sanne Meijer / CEO | Aug 25, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. 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 took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

Feedback from our customers has been very positive so far. Happy to recommend them.

Project summary

Our company worked with One Devs to develop a scheduling and dispatch tool for our field team. 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 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Software Development
Project Cost:
$10,000 to $49,999
Project Duration:
Mar 2026 - Jun 2026
Business Type:
Legal Services
Location:
Amsterdam, Netherlands

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as CEO at Stonebridge Partners BV. We operate in Legal Services and most of our customers are in and around Amsterdam, Netherlands.
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 develop a scheduling and dispatch tool for our field team.
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?
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?
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?
Definitely. We have already started talking about the next phase.

They listened, asked the right questions, and delivered

Felix Weber / Marketing Director | Jul 17, 2026

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

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

Project summary

Our company worked with One Devs to build a custom operations platform to replace the spreadsheets and email threads we were running the business on. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 9-month engagement.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Software Development
Project Cost:
$150,000 to $499,999
Project Duration:
Sep 2025 - Jun 2026
Business Type:
Manufacturing
Location:
Hamburg, Germany

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Marketing Director at Northgate Industries GmbH, a Manufacturing company based in Hamburg, Germany. 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 build a custom operations platform to replace the spreadsheets and email threads we were running the business on before our busy season.
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?
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 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?
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?
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 Software Development partner.

Good results, communication improved as the project went on

Georgia Smith / Founder & CEO | Jun 23, 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. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

The AI & Machine Learning 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 hired One Devs to build a demand forecasting model on top of our sales data. The work covered requirements, design, development, testing and launch support. The project took roughly 6 months from kickoff to launch.

  • Overall Rating 3.5
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
Less than $10,000
Project Duration:
Nov 2025 - May 2026
Business Type:
Media & Entertainment
Location:
Melbourne, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Redwood Studios is a Media & Entertainment business in Melbourne, Australia. As Founder & CEO, I was responsible for this project on our side and the main contact for One Devs.
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 demand forecasting model on top of our sales data.
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?
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?
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?
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. They are a reliable AI & Machine Learning partner.

Professional Game Development Team, Smooth Delivery From Start to Finish

Sean Walsh / Founder & CEO | Jun 18, 2026

One Devs did an excellent job for us. 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. 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. We would definitely work with them again.

Project summary

We partnered with One Devs to build the multiplayer features for our existing game. They also took care of integrations with a couple of third-party tools we already used. The engagement ran for about 4 months.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Game Development
Project Cost:
$50,000 to $149,999
Project Duration:
Jan 2026 - May 2026
Business Type:
Mining & Metals
Location:
Dublin, Ireland

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Blue Harbor Metals Ltd is a Mining & Metals business in Dublin, Ireland. As Founder & CEO, I was responsible for this project on our side and the main contact for One Devs.
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 the multiplayer features for our existing game so they could focus on customers.
What services did the company provide for your project?
Game 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. One Devs 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?
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've already recommended them to a couple of people I know.

One Devs Delivered a Quality Mobile App Development Solution on Time

Dan Foster / Director | Jun 02, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. 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. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

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 One Devs to develop a field-staff app with offline mode that syncs back to our main system. The project was split into milestones, with a working build shared at the end of each one. The engagement ran for about 3 months.

  • Overall Rating 5.0
  • 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:
Feb 2026 - May 2026
Business Type:
Food & Beverage
Location:
Denver, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Director at Pinecrest Kitchen LLC. We operate in Food & Beverage and most of our customers are in and around Denver, USA.
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?
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?
They understood our goals quickly, partly because they had worked with Food & Beverage 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?
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.

Dependable AI & Machine Learning Partner for a Growing Environmental Services Business

James Harding / Owner | May 20, 2026

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

We are already seeing better numbers than before the project. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We hired One Devs 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. The project took roughly 6 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$150,000 to $499,999
Project Duration:
Oct 2025 - Apr 2026
Business Type:
Environmental Services
Location:
Cardiff, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Owner at Blue Harbor Environmental Ltd. We operate in Environmental Services and most of our customers are in and around Cardiff, UK.
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. One Devs 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?
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.

One Devs Delivered a Quality Software Development Solution on Time

Jack Harris / Managing Director | Apr 13, 2026

I would rate this engagement highly on almost every front. They shared working builds regularly, so we could test early and give feedback before things were locked in. They were upfront about what was realistic within our budget, which helped us prioritise the right features. 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. Overall, a team we trust and plan to keep working with.

Project summary

We engaged One Devs 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 2 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:
$50,000 to $149,999
Project Duration:
Dec 2025 - Feb 2026
Business Type:
Gaming & Gambling
Location:
Perth, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Managing Director at Oakline Games Pty Ltd. We operate in Gaming & Gambling and most of our customers are in and around Perth, Australia.
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 custom operations platform to replace the spreadsheets and email threads we were running the business on.
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?
They had relevant experience in Gaming & Gambling 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 Gaming & Gambling 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?
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?
Definitely. We have already started talking about the next phase.

One Devs Delivered a Quality Cloud Services Solution on Time

Daan Smit / Co-Founder & CTO | Feb 14, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. 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.

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

We engaged One Devs to migrate our on-premise servers to AWS. Scope included discovery workshops, development in two-week sprints and a short support period after launch. We worked together for around 2 months.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Cloud Services
Project Cost:
$10,000 to $49,999
Project Duration:
Nov 2025 - Jan 2026
Business Type:
Advertising & Marketing
Location:
Eindhoven, Netherlands

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Co-Founder & CTO at Harborview Media Group BV. We operate in Advertising & Marketing and most of our customers are in and around Eindhoven, Netherlands.
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 migrate our on-premise servers to AWS so they could focus on customers.
What services did the company provide for your project?
Mainly Cloud 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?
They had relevant experience in Advertising & Marketing 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?
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?
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.

A reliable long-term partner for our tech needs

Luke Martin / Director | Jan 16, 2026

One Devs did an excellent job for us. They were upfront about what was realistic within our budget, which helped us prioritise the right features. 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 launched on schedule and have not had any major issues since. I would recommend One Devs to anyone looking for a dependable Mobile App Development partner.

Project summary

One Devs was brought in to build iOS and Android apps for our customers, including booking, payments and push notifications. They worked alongside our in-house team, which mostly handled business requirements and testing. 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:
Mobile App Development
Project Cost:
$10,000 to $49,999
Project Duration:
Jun 2025 - Dec 2025
Business Type:
Manufacturing
Location:
Adelaide, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Stonebridge Components Pty Ltd is a Manufacturing business in Adelaide, Australia. As Director, I was responsible for this project on our side and the main contact for One Devs.
What specific problem or business challenge led you to hire this company?
We needed to build iOS and Android apps for our customers, including booking, payments and push notifications, 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?
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?
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?
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.
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