QA Tip #6: Test Offline Scenarios— Because Users Lose Connection Too

Not every user has perfect internet. Apps must behave well even without network access and QA needs to test that.

Why it matters:

• Mobile apps often break silently when losing internet.
• Offline behavior exposes hidden errors in caching, state management, and API handling.
• It improves real-world reliability (subways, elevators, rural areas, airports).

How to test:

1. Turn on Airplane Mode in the device.
2. Disable WiFi/data during key actions (login, checkout, form submission).
3. Observe if the app:
   • Shows a clear offline message
   • Prevents risky actions
   • Saves data locally
   • Syncs correctly once connection returns.
4. Check logs to confirm offline requests aren’t failing silently.

Real Example:

In a mobile app, filling a form offline should store the data locally. But some apps crash or lose the form entirely when connectivity drops. Testing offline exposes this immediately.

Pro Tip:

If an app can’t survive 10 seconds without internet, users won’t survive using it.