About this app
Do you want to learn how to use the rulers? There are many rulers in the world.And also we should learn how to use them. Here we get some rulers which include some user cases.I think it can help your to lean how to use the rulers! Now there are over ten rulers!!!! more and more kinds of rulers（caliper） are comming soon!!
Latest release
What’s New
Optimized for new iPhones
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 Sep 6, 2026 · 1:28 AM $0.99
Screenshots
