About this app
This app calculates the thickness of books in millimeters from the number of pages, paper weight (GSM) and cover thickness. The app also features a compensation function for books that have already been printed so that book thickness calculations of re-runs on identical paper stock, but different page counts, will be highly accurate.
Latest release
What’s New
Compatibility for latest iOS Versions.
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 27, 2026 · 1:38 PM $0.99
Screenshots
