Guides, research and how-tos on testing mobile apps and websites on real phones and browsers.
Add the 99tests MCP server to Claude Code, Cursor or VS Code and order a human-run test on real phones and browsers. Verified bugs come back as fix prompts your agent can apply.
What happens after you pay for a 99tests run: what to send, how testers are matched to your devices, what a session is, how findings are verified, and what's not included.
A walk through a real-format 99tests report: the summary, the case-by-device coverage table, verified findings with recordings, the verification record and the not-run list.
Learn how to generate test cases using AI, review and validate them, and run them on real devices before release.
How crowd testing works at 99tests: you share a build and test cases, testers run timed sessions on their own phones, and every bug is verified before you see it.
How to execute test cases manually, step by step: prepare the build, run each step, compare actual with expected, and record evidence on real devices.
We read 2,961 Google Play reviews of 187 top Indian apps in six languages. 10.7% describe a broken app; money apps run at nearly twice the rate.
One bug cost Knight Capital more than $460 million in about 45 minutes. What a showstopper really costs, and how to catch one before your users do.
Which phones should you test on? Five parameters for choosing test devices in India: your users' models, Android skin, memory tier, screen settings and network.