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Overall Review Rating

4.4 (8 Ratings)

Quality 4.5/5
Schedule 4.5/5
Cost 4.2/5
Communication 4.3/5

Services

  • IoT App Development
  • Web Development
  • Cross Platform Development
  • Cloud Computing
  • Android App Development
  • iOS App Development
  • Automotive R&D
  • PhoneGap App Development
  • Ruby on Rails
  • Platform Development
  • Drupal
  • Mobile App Development

Industries Served

Energy & Utilities Environmental Services Events & Event Management Fashion & Apparel Insurance Logistics & Supply Chain Mining & Metals Sports & Fitness

VIStar Ltd. Reviews

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

Siobhan Gallagher

Chief Technology Officer - Northumbria FinTech Ltd
Posted on Mar 16, 2026
4.0 Overall Rating

Two-week release cycles compressed to same-day. Our product team noticed immediately.

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

Track-and-trace had gone from differentiator to baseline expectation in our client contracts. Our platform had neither and the gap was showing up in tender evaluations.

Quality 4.5/5
Schedule 4.0/5
Cost 3.5/5
Communication 3.5/5
project type
Project Type DevOps Services
industry
Industry Logistics & Supply Chain
project cost
Project Cost $500,000+
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Giulia Conti

Product Manager - Colosseum Digital Srl
Posted on Jun 29, 2025
4.5 Overall Rating

Performance testing caught a latency issue three weeks before our biggest traffic event

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

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 4.5/5
Cost 4.0/5
Communication 4.5/5
project type
Project Type Quality Assurance & Testing
industry
Industry Events & Event Management
project cost
Project Cost Less than $10,000
Read Full Review

Marcin Lewandowski

Engineering Manager - Kraków Digital Sp zoo
Posted on Apr 25, 2025
4.5 Overall Rating

Legacy-to-cloud-native in a timeline our previous vendor said was impossible

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

The project had a board-level visibility date. We needed a partner who would treat the deadline as their own.

Quality 4.5/5
Schedule 4.5/5
Cost 4.5/5
Communication 4.0/5
project type
Project Type Cloud Services
industry
Industry Environmental Services
project cost
Project Cost $500,000+
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Liselotte Bakker

Head of Platform Engineering - Harbour Digital BV
Posted on Oct 28, 2024
4.5 Overall Rating

The outcome we needed, on the timeline we needed it, by people we would use again

I have been through several technology implementations in my career. The pattern I am used to is: detailed proposal, optimistic timeline, scope creep, overrun, excuses at the end. This engagement broke that pattern at every stage. The timeline was realistic from the start. Changes were managed through process. The final delivery matched what was agreed. Simple, but uncommon.

Project summary

Our internal team was committed to maintenance and could not absorb a new build of this complexity. An external partner was the only way to hit the timeline.

Quality 4.5/5
Schedule 4.5/5
Cost 4.0/5
Communication 4.5/5
project type
Project Type POS System Development
industry
Industry Mining & Metals
project cost
Project Cost $50,000 to $149,999
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Kelsey Drummond

Director of Digital Health - Crestline Health Partners
Posted on Mar 15, 2024
4.5 Overall Rating

Deployment frequency tripled. Incident rate halved. Exactly the direction we wanted.

I have been through several technology implementations in my career. The pattern I am used to is: detailed proposal, optimistic timeline, scope creep, overrun, excuses at the end. This engagement broke that pattern at every stage. The timeline was realistic from the start. Changes were managed through process. The final delivery matched what was agreed. Simple, but uncommon.

Project summary

Smart meter rollout generated data volumes our analytics infrastructure could not handle. We needed a platform that scaled without requiring a rebuild every two years.

Quality 5.0/5
Schedule 5.0/5
Cost 4.5/5
Communication 4.0/5
project type
Project Type DevOps Services
industry
Industry Energy & Utilities
project cost
Project Cost Less than $10,000
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