About this app
This app calculates the total creep and the distance that image areas of each page in a saddle-stitched product have to be moved progressively toward the spine, in accordance with their position relative to the center of a book block. In addition, a "Creep Tweak" function can be used to compensation for variable folding machine adjustments.
Latest release
What’s New
Compatibility with latest iOS version.
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
