Set your time and start to count down.
Use your time more effective with Black White Timer.
When started timer count down white screen turn to black simultaneously with time.
If the screen will be full black it means time is up.
Start timer before study for manage your time more efficiency.
Hold screen 2 second for pause or exit.
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.
