HabitCalcHub
Free habit and self-improvement calculators: screen time, streaks, reading goals and sleep debt. No installs, no accounts — everything runs locally.
Calculators
Why HabitCalcHub?
Every tool here is a self-contained page: nothing leaves your device, nothing is installed and nothing costs money. Open a tool, use it, close it.
We keep adding tools — requests are welcome via the contact page.