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Overall Review Rating

4.8 (4 Ratings)

Quality 4.8/5
Schedule 4.5/5
Cost 4.8/5
Communication 4.9/5

Overview

3seven9 Agency always addresses your specific needs and work hard to make client's collaboration productive & enjoyable. Their main goal is to build a project which will show your idea and include the best solutions from their side. They help customers with the project evaluation, market & opponents research, functionality ideas, and development cost optimization.

founded
Founded 2009
employees
Employees 10 - 49
hourly rates
Hourly Rates $150 - $199
our rating
Our Rating 4.8/5
contact
Contact +14125643176

Services

  • Cross Platform Development
  • IoT App Development
  • Web Development
  • CMS Solutions
  • Mobile App Design
  • Agile Coaching
  • Blockchain Development
  • Mobile App Development
  • Android App Development
  • Custom Software Development
  • Digital Strategy
  • iOS App Development

Industries Served

Healthcare Human Resources Nonprofit & NGO

3seven9 Agency Reviews

Have a look at these client reviews on previously delivered projects.

Bilal Chaudhry

Co-Founder & CTO - Indus Software House
Posted on May 04, 2026
5.0 Overall Rating

Architecture review that saved us from a vendor decision we would have regretted

What set this team apart in practice was their engineering judgment — specifically, their willingness to tell us when our requirements were wrong and explain what to do instead. Not every vendor does that. The consultative element elevated the final output well beyond what our original brief described. We ended up with something better than what we had asked for, which is not a sentence I expected to be writing in a review.

Project summary

A new care pathway required patient data to move between systems in a way our current architecture did not support. The integration complexity was beyond what we could handle in-house.

Quality 5.0/5
Schedule 5.0/5
Cost 5.0/5
Communication 5.0/5
project type
Project Type IT Consulting
industry
Industry Healthcare
project cost
Project Cost $150,000 to $499,999
Read Full Review

Lars Pfeiffer

VP of Technology - NordTech Logistik GmbH
Posted on Aug 15, 2025
4.5 Overall Rating

User research surfaced friction points we had stopped noticing. Eye-opening.

What set this team apart in practice was their engineering judgment — specifically, their willingness to tell us when our requirements were wrong and explain what to do instead. Not every vendor does that. The consultative element elevated the final output well beyond what our original brief described. We ended up with something better than what we had asked for, which is not a sentence I expected to be writing in a review.

Project summary

Our product thinking was strong. Our execution capacity in this specific domain was limited. We needed deep expertise, not a generalist willing to learn on our time.

Quality 4.5/5
Schedule 4.0/5
Cost 4.5/5
Communication 5.0/5
project type
Project Type UI/UX Design
industry
Industry Human Resources
project cost
Project Cost Less than $10,000
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Katrin Bauer

Head of Product Management - Bayern Software KG
Posted on Oct 16, 2024
4.5 Overall Rating

Cross-platform build that genuinely felt native — testers could not tell the difference

Three months post-launch our key metrics are all moving in the right direction — user adoption ahead of target, support volume down, time-on-task reduced for our core workflows. The product team has started planning features that were never viable on the previous platform. That is the real proof of the investment: it opened up possibilities rather than just replacing what was there before.

Project summary

A failed engagement the previous year had made us more rigorous about vendor selection. We took the time to find a partner we actually trusted before we committed.

Quality 4.5/5
Schedule 4.0/5
Cost 5.0/5
Communication 4.5/5
project type
Project Type Mobile App Development
industry
Industry Nonprofit & NGO
project cost
Project Cost $500,000+
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Danielle Westbrook

Chief Digital Officer - BlueSky Retail Holdings
Posted on Dec 29, 2022
5.0 Overall Rating

Firmware, cloud layer, and dashboard — all three actually talk to each other. Novel.

Looking back, what strikes me most is how little drama there was. Real technology projects have problems. This one had them too — but every problem was flagged before it became a crisis, every scope change was handled through a proper process, and every risk was managed rather than buried. Our project manager said it was the smoothest vendor engagement he had been involved in. Given how complex the technical requirements were, I think that reflects genuine delivery maturity.

Project summary

A new care pathway required patient data to move between systems in a way our current architecture did not support. The integration complexity was beyond what we could handle in-house.

Quality 5.0/5
Schedule 5.0/5
Cost 4.5/5
Communication 5.0/5
project type
Project Type IoT Development
industry
Industry Healthcare
project cost
Project Cost $50,000 to $149,999
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