Watch real people use your app, within 24 hours
TestFi is a pay-per-tester user testing service for apps and websites. Verified testers use your app on their own devices, record their screen while narrating, and every session gets an AI-scored UX report.
Screen recordings with narration
Testers record their screen and talk through what they are doing. You see the exact moment someone hesitates, taps the wrong thing, or gives up.
AI-scored sessions
Every session is graded across six quality dimensions before you review it. Low-effort submissions are rejected automatically and you are not charged for them.
Real people, real devices
Verified testers on their own phones and laptops, not emulators or panels of professional reviewers. You can hand-pick testers by device, country, and review history.
Pay per tester, not per month
$1.99 per written session, $3.99 per video session. No subscription, no seats, no annual contract. A 10-tester video campaign costs $39.90 total.
What the data says about app usability testing
Across 664 completed sessions on TestFi, the numbers are one-sided: video sessions average a 78/100 AI quality score against 50/100 for written reports, and testers spend 22.8 minutes per video session versus 8.7 minutes for written. Watching someone use your app produces deeper feedback than reading their summary of it.
Read the full written-vs-video breakdown →Common questions
What is a user testing service?
A user testing service recruits real people to use your app or website while recording what they do and say. Instead of guessing why users drop off, you watch someone hit the problem in real time. TestFi runs this with verified testers on real devices, at $1.99 per written session or $3.99 per screen-recorded video session.
How much does app user testing cost?
On TestFi, written feedback costs $1.99 per tester and screen-recorded video feedback costs $3.99 per tester, with no subscription. Enterprise platforms like UserTesting typically start around $15,000 per year, and mid-market tools like Trymata or BetaTesting.com start at $99 per month.
How is app usability testing different from QA testing?
QA testing checks whether features work as specified: does the button do what the spec says. Usability testing checks whether real people can figure your app out: do they even find the button. TestFi sessions are usability-first, with testers narrating their thinking, but they also surface functional bugs along the way.
How fast do I get results?
Most campaigns get their first sessions within a few hours and finish within 24 hours. Each session arrives with the recording or written report plus an AI score across six quality dimensions, so you can sort the deepest feedback to the top.
Do I need to install an SDK or change my code?
No. You share a store link, TestFlight link, APK, or web URL. Testers install and use your real app on their own devices. Nothing to integrate, nothing to redeploy.
Written feedback or video: which should I pick?
Across 664 completed TestFi sessions, video sessions scored 78 out of 100 on our AI quality engine versus 50 for written, and testers spent 2.6 times longer in the app. Pick video ($3.99) when you are testing a flow for the first time; written ($1.99) is enough for quick confirmation of a specific fix.
Your first testers can start today
Set up a campaign in minutes. Results within 24 hours.