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Usabilitystudio
@blickdigital
Vetted Pro
Top Rated
We make products easy to use
Germany
German, English
Vetted by Fiverr Pro
Usabilitystudio was selected by the Fiverr Pro team for their expertise.
Vetted for
QA & Review
User Testing
About me
We make your product easy to use to create customer satisfaction. We are Felix and Kay, leading the Usability agency Blickwinkel-digital from Germany. Holding Master’s and PhD degrees, we combine academic rigor with expert Functional QA, UX Audits, and Cross-Device Testing. With 8+ years of experience and over +7,500 issues identified, we specialize in usability testing on web and mobile apps. We deliver structured, actionable summary reports to ensure your product is bug-free and high-converting. Trust our German precision. Contact us for a custom offer!
Skills
Usabilitystudio
$90/hour
Offline •
Average response time: 6 hours
See my services
User Testing
I will professionally test and QA the usability of your app or website
Software Testing
I will professionally test, QA and review your platform for usability, bugs, UI, UX
Want to work on an hourly basis?
Tell Usabilitystudio what you need.
$90
/
hourPortfolio
181 Reviews
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Rating Breakdown
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- Quality of delivery
- Value of delivery
1-5 out of 181 Reviews
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ichdenke
Repeat Client
Germany
Kay and Felix did an excellent job once again. This is already the second time I’ve booked their gig, and I’m very satisfied with the results. They analyzed my app thoroughly, provided clear and practical improvement suggestions, and explained everything in an easy-to-understand way. Communication was...
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ichdenke
Repeat Client
Germany
I am very satisfied with the service. The test and analysis report for my APK was very detailed, well structured, and included many helpful insights and improvement suggestions. You can tell that the work was done thoroughly. I can definitely recommend this gig!
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bleezy24
Australia
Everything went smoothly and I was pleased with the attention to detail and timely delivery. Keep up the good work!
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gezman90
Repeat Client
Switzerland
Helpful?
bojevnica
Slovenia
Great experience, I recommend to anyone who is losing conversions and don't understand why.
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