How to Execute Test Cases Manually: A Step-by-Step Guide
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.
99tests Blog
99tests provides crowdsourced manual testing of mobile applications and websites on real phones, laptops, and browsers. Its service converts customer-supplied test cases, including cases generated by AI coding tools, into device-specific testing sessions and verified reports docu
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1 in 9 Play Store reviews of India's top apps describe a broken app
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.
What does one showstopper bug really cost? A 2026 breakdown
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.
5 parameters for choosing devices for mobile app testing in India
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.
21 infamous software bugs and what they cost
21 software failures from Therac-25 to CrowdStrike: what went wrong, what each cost and the testing lesson. Every figure checked against its source.
10 Mobile App Testing Tools Compared by Testing Need
Compare 10 mobile app testing tools by the testing needs they support: real devices, automation, crowd testing, and verified reports for release teams.
Manual Testing vs Automated Testing: Which to Use When
Compare manual testing vs automated testing on coverage, speed, cost and flexibility, with a verdict by release situation and real-device evidence.
Black Box Testing Examples: 8 Techniques with Real Cases
Black box testing examples across 8 core techniques: equivalence partitioning, boundary values, state transitions, and exploratory testing, with real cases.
Mobile Application Testing Services: A Buyer's Guide
Learn what mobile application testing services cover, how device and OS coverage works, and how to choose a provider that proves its results.