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.
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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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.
Testing the Application: A Practical Workflow
Learn how to plan, prepare, execute and report on testing the application, with a coverage matrix, device checklist and release gate criteria.
Sanity Testing Software: What It Checks and When to Use It
Learn what sanity testing software checks after a build, how it differs from smoke and regression testing, and how to run a focused check.
Test Coverage vs Code Coverage: A Practical Guide
Compare test coverage vs code coverage: structural reach versus observed behavior, with a decision guide for unit, pull request, and release risk.
QA Manual Testing from Plan to Verified Bugs
Learn QA manual testing across planning, execution, defect reports, and verification so each release shows what really ran.
Validation of Test: What Makes a Test Trustworthy
Validation of test means proving a case is relevant and reliable, not just that it passed. See the evidence checklist teams use in 2026.