Support & FAQ
Find answers to common questions about Tasu below.
How do I add hours and minutes?
Type a number in H:M format (e.g., 820 for 8h 20m) and tap "+ Add". The value is automatically interpreted as hours and minutes and added to your running total.
How do I subtract time?
Enter a time value and tap "- Sub" instead of "+ Add". The value will be subtracted from the total.
Can I switch between hours:minutes and pure minutes?
Yes! Tap the mode toggle at the top of the screen, or simply shake your iPhone to switch instantly between H:M mode and Minutes mode.
How does the H:M format work?
In H:M mode, the last two digits are minutes and the rest are hours. So "820" means 8 hours and 20 minutes, "130" means 1 hour and 30 minutes, and "45" means 0 hours and 45 minutes.
Can I undo a calculation?
Yes. After adding or subtracting a value, tap "Undo" in the total display to reverse the last operation. Your full calculation history is also visible at the bottom of the screen.
How do I copy the result?
Tap the copy icon next to any value or the total to copy it to your clipboard. You can then paste it into messages, notes, or any other app.
Is my data stored online?
No. All your data stays on your device. Tasu does not connect to the internet, has no accounts, and collects no personal information. See our Privacy Policy for details.
Does Tasu work offline?
Yes, Tasu works completely offline. No internet connection is needed.
How do I reset the total?
Tap "Clear" in the history section at the bottom of the screen to reset the total and clear your calculation history.
Is Tasu a subscription?
No. Tasu is a one-time purchase of €1.99. There are no subscriptions, no in-app purchases, and no ads. All future updates are included.