About this app
This app is a tool for calculating reliability. It is suitable for hobbyist, students or engineers. Features • Mean-Time-Between-Failure (MTBF) calculator • Reliability of series systems • Reliability of parallel systems • Reliability function Features in PRO • Reliability of mixed systems All trade names mentioned in this app or the other documentation provided by this app are trademarks or registered trademarks of their respective holder. This app is not related or affiliated in any way these companies.
Latest release
What’s New
Fix minor bugs
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 Oct 12, 2026 · 8:40 PM Free