Details
| Founded: | 2008 |
|---|---|
| Hourly Rates: | $100 - $149 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | $25,000+ |
| Ratings: |
4.4
8 Reviews
|
Industries Served
About
Crystalnix is the best mobile app development company. They estimate quickly & manage every stage of the software lifecycle, covering ideation, planning, design, development & quality assurance. They help their clients to grow completely & deliver strong experiences while achieving complete cost-of-ownership. From start to end, everything from communication to quality to levels of feedback was flawless.
Crystalnix Reviews
The return on this investment outpaced the business case we originally approved
Alexis Faraday / Chief Digital Officer | May 30, 2026What actually moved the needle wasn't their ability to follow a spec — any competent team can do that. It was their willingness to push back when a requirement didn't make sense, explain clearly why, and help us decide on something better instead. That extra layer of judgment took the final product past what we'd actually asked for and closer to what we genuinely needed, which isn't always the same thing.
Project summary
Multi-touch attribution across our media mix was the single most requested capability from clients across our whole portfolio, and we couldn't deliver it without rebuilding the data layer underneath.
| 4.0 Overall Rating |
| 4.5 Quality |
| 4.0 Schedule |
| 4.0 Project Cost |
| 5.0 Willing To Refer |
| Project Type: | Low-Code / No-Code Development |
|---|---|
| Project Cost: | $10,000 to $49,999 |
| Project Duration: | Nov 2025 - Apr 2026 |
| Business Type: | Advertising & Marketing |
|---|---|
| Location: | Miami, USA |
Questions & Answers
Designed around how our users actually behave, not the persona slide we'd been assuming
Henrik Schuster / VP of Technology | May 26, 2026Going in, the integration work was what worried me most. Our systems landscape is messy, a couple of the third-party APIs we depend on are barely documented, and one of those vendors has a well-earned reputation for slow, inconsistent support. This team absorbed all of that. They documented what the upstream providers wouldn't, built in resilience wherever the upstream behavior was flaky, and shipped something that has worked exactly as specified since go-live. I genuinely couldn't have asked for more on that front.
Project summary
Our headcount had grown faster than our platform engineering depth. We needed an experienced team to close that gap while we hired, without letting quality or the roadmap slip in the meantime.
| 4.5 Overall Rating |
| 5.0 Quality |
| 5.0 Schedule |
| 4.0 Project Cost |
| 5.0 Willing To Refer |
| Project Type: | UI/UX Design |
|---|---|
| Project Cost: | $10,000 to $49,999 |
| Project Duration: | Jul 2025 - Apr 2026 |
| Business Type: | Information Technology |
|---|---|
| Location: | Bremen, Germany |
Questions & Answers
Migrated without the outages and rollback drama our first attempt at this produced
Kenji Watanabe / Director of IT Strategy | May 06, 2026This was our fourth agency in three years, and I say that with some embarrassment. Every previous engagement had looked promising on paper and fallen apart somewhere in delivery. What was different here was the sequencing: they spent real time understanding the actual problem before proposing anything, rather than pattern-matching to a solution they already knew how to sell. The build ran to schedule, our own engineers had genuinely positive things to say during handover, and four months into live operation we haven't had a single critical incident. We're already talking about the next phase with them.
Project summary
How long it took us to launch a new tariff had become a genuine competitive disadvantage, and the product configuration layer was the obvious bottleneck to fix first.
| 4.5 Overall Rating |
| 4.5 Quality |
| 5.0 Schedule |
| 5.0 Project Cost |
| 5.0 Willing To Refer |
| Project Type: | Cloud Services |
|---|---|
| Project Cost: | $50,000 to $149,999 |
| Project Duration: | Jan 2026 - Apr 2026 |
| Business Type: | Telecommunications |
|---|---|
| Location: | Yokohama, Japan |
Questions & Answers
Execution matched the proposal on every dimension that actually mattered to us
Margaux Lefèvre / Head of Digital Products | Apr 29, 2026Looking back, the thing that stands out most is how uneventful the whole project was. Technology projects of this size tend to generate their share of fire drills and awkward escalation calls. This one really didn't. Issues got flagged early enough that they never became incidents, scope changes went through an actual process instead of a tense phone call, and risks were tracked rather than just hoped away. That kind of quiet competence is unusual in my experience, and it made the whole thing feel easier on our end than I know it was on theirs.
Project summary
Multi-touch attribution across our media mix was the single most requested capability from clients across our whole portfolio, and we couldn't deliver it without rebuilding the data layer underneath.
| 4.5 Overall Rating |
| 4.5 Quality |
| 4.0 Schedule |
| 4.0 Project Cost |
| 5.0 Willing To Refer |
| Project Type: | POS System Development |
|---|---|
| Project Cost: | $50,000 to $149,999 |
| Project Duration: | May 2025 - Jan 2026 |
| Business Type: | Advertising & Marketing |
|---|---|
| Location: | Nice, France |
Questions & Answers
Checkout completion rate improved from day one of the redesign going live
Bianca Alvarado / Chief Product Officer | Apr 13, 2026What actually moved the needle wasn't their ability to follow a spec — any competent team can do that. It was their willingness to push back when a requirement didn't make sense, explain clearly why, and help us decide on something better instead. That extra layer of judgment took the final product past what we'd actually asked for and closer to what we genuinely needed, which isn't always the same thing.
Project summary
A previous project had worked fine in staging and fallen apart in production. We approached vendor selection this time with a lot more scrutiny as a direct result.
| 4.5 Overall Rating |
| 5.0 Quality |
| 5.0 Schedule |
| 4.0 Project Cost |
| 5.0 Willing To Refer |
| Project Type: | E-commerce Development |
|---|---|
| Project Cost: | $150,000 to $499,999 |
| Project Duration: | Jul 2025 - Jan 2026 |
| Business Type: | Human Resources |
|---|---|
| Location: | San Diego, USA |
Questions & Answers
Launched at a 4.6 store rating with no critical bugs reported in the first two weeks
Cormac Whelan / VP of Engineering | Feb 21, 2026The easiest thing to praise is the technical output itself — solid test coverage, a deployment pipeline that just works, documentation that people actually reference instead of ignoring. But what I keep coming back to is the number of conversations we haven't had to have since launch. No 2am incident calls. No emergency patches. No post-mortems about what went sideways. That absence is really the whole pitch, if you ask me.
Project summary
Our trading platform had been patched together for close to a decade. Latency was creeping up, technical debt was compounding, and a proper rebuild had stopped being optional.
| 4.0 Overall Rating |
| 4.5 Quality |
| 4.5 Schedule |
| 4.0 Project Cost |
| 5.0 Willing To Refer |
| Project Type: | Game Development |
|---|---|
| Project Cost: | Less than $10,000 |
| Project Duration: | Mar 2025 - Nov 2025 |
| Business Type: | Financial Services |
|---|---|
| Location: | Cork, Ireland |
Questions & Answers
Execution matched the proposal on every dimension that actually mattered to us
Amal Al-Hosani / Head of Digital Strategy | Feb 01, 2026Looking back, the thing that stands out most is how uneventful the whole project was. Technology projects of this size tend to generate their share of fire drills and awkward escalation calls. This one really didn't. Issues got flagged early enough that they never became incidents, scope changes went through an actual process instead of a tense phone call, and risks were tracked rather than just hoped away. That kind of quiet competence is unusual in my experience, and it made the whole thing feel easier on our end than I know it was on theirs.
Project summary
Cross-agency data sharing had been stuck for years because of incompatible systems. A secure integration layer was the prerequisite for nearly everything else on our roadmap.
| 4.5 Overall Rating |
| 4.0 Quality |
| 5.0 Schedule |
| 4.5 Project Cost |
| 5.0 Willing To Refer |
| Project Type: | Industry-Specific Solutions |
|---|---|
| Project Cost: | $50,000 to $149,999 |
| Project Duration: | Mar 2025 - Jan 2026 |
| Business Type: | Government & Public Sector |
|---|---|
| Location: | Dubai, UAE |
Questions & Answers
Multi-region uptime has held above 99.9 percent since the day we went live
Rashid Al-Marzouqi / Chief Technology Officer | Jan 26, 2026What actually moved the needle wasn't their ability to follow a spec — any competent team can do that. It was their willingness to push back when a requirement didn't make sense, explain clearly why, and help us decide on something better instead. That extra layer of judgment took the final product past what we'd actually asked for and closer to what we genuinely needed, which isn't always the same thing.
Project summary
Our internal engineering capacity was fully committed to keeping existing systems running, with no room for a build of this size. An outside partner with the right depth was really our only option.
| 4.5 Overall Rating |
| 4.0 Quality |
| 4.5 Schedule |
| 5.0 Project Cost |
| 5.0 Willing To Refer |
| Project Type: | Cloud Services |
|---|---|
| Project Cost: | Less than $10,000 |
| Project Duration: | Feb 2025 - Oct 2025 |
| Business Type: | Fashion & Apparel |
|---|---|
| Location: | Sharjah, UAE |
Questions & Answers
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