An app can pass every automated test and still frustrate users the day it launches. Emulators are great for speed, but they are not the phones your customers hold.
What emulators miss
- Performance on budget phones with limited memory.
- Manufacturer-specific behaviour, such as aggressive battery savers that kill background tasks.
- Real network conditions: switching between Wi-Fi and mobile data, or losing signal mid-request.
- Small screens, large font settings and Bangla text rendering.
- Camera, notifications and permission prompts as they really appear.
How we choose devices
We look at which phones and Android versions the client’s users actually have, then build a test matrix that covers the most common budget, mid-range and flagship devices, plus at least one older model that still has many users.
Our testing mix
- Automated tests on every change for core logic and key flows.
- Manual exploratory testing on real devices before each release.
- Regression checklists so old bugs do not come back.
- Staged rollouts so problems reach a small group first.
The cheapest bug is the one your customers never see.
