You will get a professional app or website audit that makes your website easy to use
Project details
Hi there, we are new to Upwork, which is why we are offering special rates for a limited time only. As a professional agency, we have a proven track record on Fiverr, having worked with over 200 happy customers.
You just launched a new app/website or software?
Don't risk losing potential customers due to usability issues. A usability test is crucial to identify potential user frustrations and improve the overall user experience, leading to higher user satisfaction, engagement, and conversion rate.
We will test your app/website or software for the following:
• The first impression
• Functionality & Bugs
• Overall Design
• UX & UI
• Page Speed & Performance
• Navigation & Information Architecture
• Responsive Design
• User Journey
We will provide you with the following:
• Comprehensive summary report including graphic suggestions for improvement
• Screenshots and videos
• Prioritized usability issues according to their severity
• Concrete suggestions for improvement
• According to the 10 usability heuristics
Feel free to contact us to discuss your project and explore how we can enhance your product for your customers.
You just launched a new app/website or software?
Don't risk losing potential customers due to usability issues. A usability test is crucial to identify potential user frustrations and improve the overall user experience, leading to higher user satisfaction, engagement, and conversion rate.
We will test your app/website or software for the following:
• The first impression
• Functionality & Bugs
• Overall Design
• UX & UI
• Page Speed & Performance
• Navigation & Information Architecture
• Responsive Design
• User Journey
We will provide you with the following:
• Comprehensive summary report including graphic suggestions for improvement
• Screenshots and videos
• Prioritized usability issues according to their severity
• Concrete suggestions for improvement
• According to the 10 usability heuristics
Feel free to contact us to discuss your project and explore how we can enhance your product for your customers.
Testing Platform
Website Testing, Mobile Testing, Software Testing, Game TestingDevice
PC, Mac, iPhone, iPad, Android Mobile Phone, Game ConsoleLanguage
English, GermanWhat's included
| Service Tiers |
Starter
$50
|
Standard
$180
|
Advanced
$280
|
|---|---|---|---|
| Delivery Time | 4 days | 7 days | 8 days |
Number of Revisions | 0 | 0 | 0 |
Test Scenario | |||
Summary Report | |||
Annotated Screenshots | |||
Test Desktop | |||
Test Mobile |
Frequently asked questions
2 reviews
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SC
Sarah C.
May 4, 2026
German-Speaking UX Researcher for Usability Testing
Felix is a thoughtful, deeply engaged UX researcher. He structures qualitative findings with clear severity tiers and Nielsen heuristic mapping, and brings independent observations beyond the brief rather than just executing instructions. Sharp on moderation in German, careful in synthesis, and consistently engaged throughout the project, including a clean revision round. Engaged with the work as a peer, not an executor — the product team is already actioning his findings. Highly recommended for moderated qualitative research in DACH markets.
TK
Tal K.
Apr 13, 2025
Usability Test - plotrise.com
Felix and Kay are serious professionals with tons of attention to details, as required by a usability test project. They completed the work exceptionally and provided me with a thorough report that will help me improve my SaaS in a dozen ways, from major to small. They accommodated my tight schedule without an issue. Working with them was a pleasure throughout. Highly recommended!
About Felix
Usability Expert | Native German | UX Research | Website & App Testing
100%
Job Success
Blumberg, Germany - 1:57 am local time
Stop losing users to frustrating interfaces. I help you identify critical usability problems before they cost you conversions, customers, and credibility.
📞 Let's start with a quick call to discuss your needs and see if I'm the right fit.
🏆 WHAT I BRING TO THE TABLE
Before coming to Upwork, I built one of the top usability testing services on Fiverr:
- 250+ projects completed with a 5-star rating
- Fiverr Pro & Fiverr's Choice — achieved every badge available
- 9,000+ usability issues identified across websites, apps, and digital products
- 8+ years of hands-on experience as a usability engineer
Now I'm bringing that same expertise to Upwork clients who need reliable, thorough, and actionable usability insights.
⭐⭐⭐⭐⭐
"Fantastic working with Felix, really worth every penny. He found bugs in my site none of our other testers had discovered, and his documentation was top notch. We will absolutely work with him again next time we need a site tested!" — Fiverr Client
🇩🇪 NATIVE GERMAN SPEAKER — YOUR SECRET WEAPON FOR THE DACH MARKET
Planning to launch in Germany, Austria, or Switzerland? This is where I truly stand out.
As a native German speaker, I catch what non-native testers miss:
- Chatbots & Voice Assistants: I test conversational AI in natural German, identifying awkward phrasing, cultural mismatches, and flow issues
- Localization Testing: Beyond translation: I evaluate tone, formality ("Sie" vs. "Du"), cultural appropriateness, and regional expectations
- German User Testing: I have access to a network of native German test participants for authentic user feedback
International companies trust me to ensure their products don't just work in German—they feel German.
🔍 WHAT I OFFER
- Heuristic Evaluations (Nielsen's 10 Heuristics)
- Usability Testing with real users
- UX Audits for websites, apps, e-commerce & SaaS
- German localization and voice bot testing
🏢 INDUSTRIES I'VE WORKED WITH
E-Commerce • SaaS • FinTech • HealthTech • Mobile Apps • Startups • Enterprise Software
📋 WHAT YOU RECEIVE
- Comprehensive summary report with annotated screenshots and videos
- Prioritized issues ranked by severity
- Concrete, actionable recommendations
📅 Book a 30-minute strategy call to discuss your goals
💌 Or send me a message with your project details
Let's make your product easy to use—so your customers stay, convert, and come back.
Steps for completing your project
After purchasing the project, send requirements so Felix can start the project.
Delivery time starts when Felix receives requirements from you.
Felix works on your project following the steps below.
Revisions may occur after the delivery date.
Review your app/website from your customers' perspective
Our approach involves having three testers thoroughly evaluate your platform from your customers' perspective, running through various user scenarios.
Review your app/website based on the Nielsen's 10 usability heuristics
We will document any usability issues (UX/UI or functionality) that arise as we run through the various user scenarios based on Nielsen's 10 usability heuristics.