Go Mobile Reviews

About Go Mobile

Go Mobile is a leading app development company, they deliver result for our Clients and Partners all over the world. Their development solutions assure your build is done right the first time, and with a faster time-to-market and lower total cost of ownership than competing technologies. They craft custom web and mobile applications at the speed of opportunity, for innovators who want to get stuff done.

Services

Mobile App Development Web Development UI-UX Design Web Design

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Camille Bertrand / Head of Digital Products - Hexagone Retail Group

Verified
Apr 15, 2026

Project summary: Our growth into new markets required a multi-currency, multi-language commerce platform that our previous vendor had promised but never delivered.

Our previous agency had given us a platform that worked well enough to demo and fell apart under real load. This team came in, diagnosed the root causes accurately, and rebuilt the critical components without disrupting the live service. The performance improvements were immediate and measurable — page load times dropped by 60 percent, error rates dropped to near zero, and our support team has far fewer incidents to deal with. The contrast with our previous experience could not have been sharper.

PROS

Technical depth across the full stack, honest and timely communication, delivered exactly what was scoped without surprise additions to the invoice

CONS

Premium pricing compared to some of the alternatives we evaluated, but the quality of the output and the absence of rework costs made the investment straightforward to justify

5.0

Overall

5.0

Quality

5.0

Schedule

5.0

Cost

5.0

Communication

Project TypeCMS Development

IndustryRetail & E-commerce

Project Cost$10,000 to $49,999

DurationJul 2025 – Mar 2026

Questions & Answers

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

Hexagone Retail Group is a Retail & E-commerce business based in Lyon, France. As Head of Digital Products I am responsible for all technology investment decisions, vendor selection, and ensuring our digital capabilities match our growth ambitions. We operate in a competitive market where the quality of our software directly affects our ability to win and retain clients.

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

Our existing CMS Development capability had accumulated years of technical debt that was slowing every new feature to a crawl. Incident frequency was rising, developer confidence was falling, and we knew a rebuild was overdue. We needed a partner with the depth to do it properly rather than apply another layer of patches.

What services did the company provide for your project?

The core engagement was CMS Development but expanded to include technical consultancy during the discovery phase, which helped us refine the requirements significantly before development began. They also took responsibility for coordinating with our third-party data providers, which removed a significant coordination burden from our internal team.

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

A direct referral from a peer who had used them for a comparable CMS Development engagement in the Retail & E-commerce space. That peer's experience had been excellent and their project profile was similar enough to ours that the recommendation carried real weight. Everything we found during our own evaluation reinforced that this was the right decision.

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

Thorough and precise. They translated our business language into technical requirements without losing the intent, which is a skill that sounds straightforward but frequently goes wrong. Every user story they wrote was reviewed against the original business objective before it entered the sprint and the acceptance criteria were specific enough to remove subjectivity from QA.

How was your overall experience with their communication and project management?

The project management was the best I have experienced in a vendor relationship. We had fortnightly sprint reviews with structured agendas, a shared backlog that we could inspect at any point, a risk register that was actively maintained rather than created at kickoff and never opened again, and a project manager who treated our time as something worth protecting. Communication was proactive, not reactive.

Did the company deliver the project on time and within your expected budget?

On time and within the agreed budget. They had given us a range estimate at the start, which I had been sceptical of, and they landed within the lower half of that range. Their estimation accuracy came from having broken the work down in genuine detail during discovery rather than giving a rough number and hoping. It showed in every sprint.

What tangible results or business impact have you seen since the project was completed?

We went live three months ago. In that time we have not had a single P1 incident, our page performance scores have improved across every measure, and the feature we had deprioritised for years because the old architecture made it too complex to implement is now in our next sprint. The platform they built has opened up our roadmap in a way we had not anticipated.

What did you like most about working with this company?

The quality of the written communication. This matters more than most clients articulate. Clear, concise, technically accurate updates that our non-technical stakeholders could read and understand. Proposals and change requests that made the decision obvious rather than obscuring it in jargon. That communication quality reduced our internal coordination overhead significantly.

Would you recommend this company to others, and would you work with them again?

Unreservedly. We are in active conversation about the next phase of work and I expect this to become a multi-year partnership. For any organisation in the Retail & E-commerce space looking for a CMS Development partner who combines technical rigour with genuine commercial awareness, I would put this team at the top of the shortlist.

A studio partner who played the game as users would and built it accordingly

Antoine Lefevre / Directeur Technique - Lumiere Digital SAS

Verified
Oct 22, 2024

Project summary: Our competitors had been investing in technology for two years and we needed to close a meaningful gap quickly without compromising on the quality of what we shipped.

The technical quality of the work is the easiest thing to praise, but what I want to highlight is the communication culture on this team. Every question got a same-day response. Every risk got flagged before it became an issue. When we needed to change direction mid-project — a business decision on our side — they absorbed the change professionally, requoted fairly, and kept momentum going. That flexibility is something you cannot assess in a proposal and it turned out to be one of the most valuable things about working with them.

PROS

Senior engineers on our account throughout the entire project rather than a bait-and-switch to juniors after contract signing, transparent reporting, realistic estimates that proved accurate

CONS

Premium pricing compared to some of the alternatives we evaluated, but the quality of the output and the absence of rework costs made the investment straightforward to justify

5.0

Overall

5.0

Quality

5.0

Schedule

5.0

Cost

5.0

Communication

Project TypeGame Development

IndustryConstruction

Project Cost$150,000 to $499,999

DurationOct 2024 – Dec 2024

Questions & Answers

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

As Directeur Technique at Lumiere Digital SAS, I manage a cross-functional technology team serving our Construction clients from Paris, France. We are a commercially focused organisation and every technology decision we make is evaluated against a clear business case. We needed a partner who understood that context, not just the technical brief.

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

We had a product concept validated by market research but no clear path to build it within our budget and timeline constraints. Our Construction competitors were moving quickly and we could not afford to spend eighteen months finding out a generalist agency could not execute the Game Development work our product required.

What services did the company provide for your project?

End-to-end Game Development delivery with a particular emphasis on the integration layer that connected the new build to our existing Construction infrastructure. They also provided UI/UX input that was not in the original scope but which they offered proactively because they could see it would affect adoption. That kind of initiative was characteristic of how they approached the whole engagement.

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

Their portfolio included two projects that were sufficiently close to our own brief in terms of complexity, Game Development scope, and Construction context that we felt confident they understood what we were asking. The proposal was technically rigorous, the pricing was transparent, and the proposed team structure gave us senior engineers throughout rather than just for the pitch.

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

Better than we did at the start, which sounds like an exaggeration but is genuinely accurate. The discovery workshop they ran surfaced assumptions we had not examined and contradictions in our requirements that would have caused real problems mid-development. The functional specification they produced was the clearest articulation of our product that we had seen written down.

How was your overall experience with their communication and project management?

Professional and efficient. We used a shared project management tool that gave our stakeholders visibility without requiring them to attend every meeting. The project manager had a clear escalation path and used it appropriately. The only time I needed to intervene directly was when I chose to, not because something had been missed.

Did the company deliver the project on time and within your expected budget?

The project landed on the agreed delivery date and within the approved budget. We did add scope during the engagement — two features that became apparent as essential during user testing — and those were quoted, approved, and delivered without affecting the original scope timeline. That kind of clean change management is not something you can take for granted.

What tangible results or business impact have you seen since the project was completed?

We went live three months ago. In that time we have not had a single P1 incident, our page performance scores have improved across every measure, and the feature we had deprioritised for years because the old architecture made it too complex to implement is now in our next sprint. The platform they built has opened up our roadmap in a way we had not anticipated.

What did you like most about working with this company?

The quality of the written communication. This matters more than most clients articulate. Clear, concise, technically accurate updates that our non-technical stakeholders could read and understand. Proposals and change requests that made the decision obvious rather than obscuring it in jargon. That communication quality reduced our internal coordination overhead significantly.

Would you recommend this company to others, and would you work with them again?

Unreservedly. We are in active conversation about the next phase of work and I expect this to become a multi-year partnership. For any organisation in the Construction space looking for a Game Development partner who combines technical rigour with genuine commercial awareness, I would put this team at the top of the shortlist.

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