About this app
Provides a quick estimate of the material needed to construct a subfloor. Given floor dimensions and joist spacing this will estimate the number of joists, amount of floor sheating required, linear feet of the joists / rim board, tubes of glue and number of screws required.
Latest release
What’s New
Updated for latest iOS.
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 13, 2026 · 7:50 PM $0.99
Screenshots
