Use calculator directly on keyboard anywhere, anytime. No switch apps, no copy and paste results anymore!
You must enable the keyboard under system settings, then select it in your keyboard
1. Launch the Calc4Key
2. Tap "ENABLE CALC4KEY" button
3. Turn the Calc4Key switch ON.
Data safety
Safety starts with understanding how developers
collect and share your data. Data privacy and security practices may vary based
on your use, region, and age. The developer provided this information and may
update it over time.