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Overall Review Rating

4.7 (8 Ratings)

Quality 4.4/5
Schedule 4.9/5
Cost 4.6/5
Communication 4.6/5

Overview

Factorial Complexity is a good mobile app development company. Their goal is to make app development easy and simple for you. They are good at establishing and maintaining good communication with their customers. They believe in honesty. They do strategic planning, innovative user-experience design and development, pre-launch and post-launch maintenance. They provide technology solutions that attract, change, and connect you with views.

founded
Founded 2012
employees
Employees 10 - 49
hourly rates
Hourly Rates $25 - $49
our rating
Our Rating 4.7/5
contact
Contact +16615484000

Services

  • Custom Software Development
  • iOS App Development
  • Cloud Computing Software
  • Web Development
  • iPhone App Development
  • Android App Development
  • Data Science & Big Data
  • Logo Designing
  • IT Consulting
  • Machine Learning
  • Cross Platform Development
  • Mobile App Development

Industries Served

Automotive Events & Event Management Fashion & Apparel Healthcare Insurance Media & Entertainment Pharmaceuticals & Biotechnology

Factorial Complexity Reviews

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

Gustavo Ferreira

VP of Technology - Amazônia Digital Ltda
Posted on May 18, 2026
4.5 Overall Rating

Proactive monitoring prevented an issue that would have cost us a trading day

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 audience data sat in eight different tools with no shared identity. Personalisation was impossible without first solving that foundation problem.

Quality 4.0/5
Schedule 4.5/5
Cost 4.0/5
Communication 4.0/5
project type
Project Type IT Managed Services
industry
Industry Media & Entertainment
project cost
Project Cost $10,000 to $49,999
Read Full Review

Aarav Mehta

Chief Data Officer - Zenith FinServ Ltd
Posted on Mar 29, 2026
4.5 Overall Rating

Compliance programme delivered on time and approved without remediation

We handed them an aggressive deadline, a complex scope, and a client-side team that was stretched and not always available when they needed us. They handled that gracefully. They were precise about what they needed and when they needed it. Where they could proceed independently they did. The delivery landed on time in spite of the constraints we added. I regard that as strong evidence of genuine professional maturity — not just capability.

Project summary

The EV transition had created dealer network management requirements our existing DMS was not designed for. A targeted rebuild was the only path forward that timeline would allow.

Quality 4.5/5
Schedule 5.0/5
Cost 4.5/5
Communication 5.0/5
project type
Project Type Cybersecurity
industry
Industry Automotive
project cost
Project Cost $500,000+
Read Full Review

Julien Moreau

Co-Founder & CTO - TechLyon SAS
Posted on Sep 21, 2025
4.5 Overall Rating

Outsourced IT that simultaneously improved the service level and the cost line

The platform has been live for six months and is handling three times the transaction volume we scoped for. That is not because we underestimated — it is because the architecture choices made during discovery were genuinely forward-thinking. Most vendors design for exactly what you tell them. This team designed for what you are likely to need. We are already scoping the next phase and there was no question about who we would use.

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 4.0/5
Schedule 5.0/5
Cost 5.0/5
Communication 4.5/5
project type
Project Type IT Managed Services
industry
Industry Events & Event Management
project cost
Project Cost $150,000 to $499,999
Read Full Review

Laura Jiménez

Head of Digital Products - Catalonia Digital SL
Posted on Apr 29, 2025
5.0 Overall Rating

Test automation our developers adopted as a tool rather than a compliance burden

The technical quality is the obvious thing to highlight. The automated test suite is comprehensive, the deployment pipeline is solid, and the documentation is actually useful rather than written to satisfy a checklist. But the metric I keep coming back to is what has NOT happened since go-live. No 2am incident calls. No emergency patches. No post-launch retrospectives about what went wrong. For a system of this complexity, that outcome is exactly what we paid for.

Project summary

Telehealth demand had turned a pilot into a core service line faster than our technology could keep up. We needed a compliant, reliable platform and we needed it quickly.

Quality 4.5/5
Schedule 5.0/5
Cost 5.0/5
Communication 4.5/5
project type
Project Type Quality Assurance & Testing
industry
Industry Healthcare
project cost
Project Cost $150,000 to $499,999
Read Full Review

Clémentine Aubert

Head of Digital Products - Arc-en-Ciel Digital SAS
Posted on Aug 06, 2024
5.0 Overall Rating

Clean migration, zero content loss, better performance — the full win we needed

The platform has been live for six months and is handling three times the transaction volume we scoped for. That is not because we underestimated — it is because the architecture choices made during discovery were genuinely forward-thinking. Most vendors design for exactly what you tell them. This team designed for what you are likely to need. We are already scoping the next phase and there was no question about who we would use.

Project summary

Broker portal satisfaction scores had fallen for two consecutive years. Specific feedback pointed to the same workflow frustrations. We needed a redesign, not a patch.

Quality 4.5/5
Schedule 5.0/5
Cost 5.0/5
Communication 4.5/5
project type
Project Type CMS Development
industry
Industry Insurance
project cost
Project Cost $50,000 to $149,999
Read Full Review
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