About this app
Add, subtract, multiply and divide durations without wrestling with the math. Quick keys :00 :15 :30 :45, a full history tape like an adding machine, and totals in decimal hours too. Fast, clear, no ads and no tracking.
Latest release
What’s New
Graphics and stability improvements.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 11, 2026 · 1:51 PM Free
Screenshots
