Userbrain Recorder vs Optimal Participant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Userbrain Recorder
Earn money by providing feedback on digital products and services. Record your user experience, share your opinions, and receive invitations to test for global brands. The app only records during active testing sessions, ensuring your data privacy.
- Earn money for feedback
- Record user experience
- Share opinions
- Test global brands' products
- Easy application process
- Data privacy during testing
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The Userbrain app is a great way to earn money for your feedback. Use digital products and services of global brands, record your experience, share your opinions and earn additional income. HOW DOES IT WORK? Becoming a Userbrain tester is a great way to earn a few extra dollars on the side. The application process is easy and can be completed in 3 simple steps: You create an account on tester.userbrain.com and fill out some basic demographic information. You complete a short practice test (We’ll guide you through it step by step). The Userbrain team will then manually review your video and, if everything looks good, approve your request. You’ll then receive invitations to use products and services of global brands, record your experience and share your opinions. IS MY DATA SAFE? The Userbrain app is ONLY active when participating in a testing session. In case you are not actively participating in a session, the app won't record anything nor collect any data. If you have any questions or concerns, please contact us anytime at tester@userbrain.com.
Optimal Participant
Share your honest feedback on products, websites, and experiences through usability tests and surveys directly from your phone. No logins are required, making it quick and easy to make a real impact on product development.
- Participate in usability tests
- Complete surveys
- No login required
- QR code or link access
- Secure data transmission
- Shape product development
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Make Your Voice Count – Help Shape The Future of Products! Join usability tests and surveys straight from your phone. No logins, no hassle. Just your honest feedback to improve today’s products, websites, and experiences. Why Optimal Participant? Quick & simple: Jump into a study in seconds. Simply scan a QR code or click on a study link. No account or login needed. Make a real impact: Share your thoughts through quick surveys or tasks, helping teams improve products and experiences faster. Your privacy, your choice: You decide what information to share. Your responses are securely sent to the research team. Download now to start sharing your insights! Optimal is a user research and insights platform helping companies test, validate assumptions and build products people love. Learn more: optimalworkshop.com
Screenshots
Verdict
The clearest difference is rating: Userbrain Recorder at 1.3 against Optimal Participant's 1.0. Userbrain Recorder also leads on review sentiment (21% vs 0%) and device support (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Userbrain Recorder holds the better App Store score, 1.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 21% of Userbrain Recorder's written reviews are positive against 0% of Optimal Participant's.
Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 24, 2026.
| Parameter | Userbrain Recorder | Optimal Participant |
|---|---|---|
| Price | Free | Free |
| Rating | 1.3 (3 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 20.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 36 MB | 38 MB |
| Age rating | 17+ | 12+ |
| Developer | Userbrain GmbH | Optimal Workshop |
Customer experience
Userbrain Recorder
Optimal Participant
In-app purchases
Userbrain Recorder
No in-app purchases
Optimal Participant
No in-app purchases
Questions
Is Userbrain Recorder free?
Is Optimal Participant free?
Which has better reviews, Userbrain Recorder or Optimal Participant?
Do Userbrain Recorder or Optimal Participant have ads?
Which is updated more often, Userbrain Recorder or Optimal Participant?
Other comparisons
