SwiftKey is not currently compatible with Android's magnification feature. As a result, tapping the screen 3 times in quick succession will cause the display to zoom in and surround the area in a blue border.
Magnification should be switched off by default, but if you find it's been enabled please follow the steps below to disable it:
- Navigate to your Android settings menu
- Tap 'Accessibility'
- Uncheck the 'Magnification' (or 'Magnification gesture') option
Please note this may vary slightly depending on your Android device.