1.Scratch card number well.
2. Use re-sizing scan box and locate number inside.
3. Do not get close or far from card number.
This App provides many features:
1. Camera Auto focus.
2. Auto store charging codes after first charging process.
3. Get account balance either by code or message.
4. Re-sizing scan box for camera.
5. High recognition results.
and this updated version provides more:
1. Separate manual mode from camera mode.
2. Faster and smaller in size.
3. Camera opened in scanning mode only.