About this app
Say goodbye to printing charts, measuring with a string, or unsustainable plastic sizing kits. Simply place a ring that you wear on your index finger on the screen, and adjust the slider until you find the right size for you! Further instructions and troubleshooting can be found at http://www.femtek.co/faq/ subtitle (caption that is visible under app name on App Store): Femtek BBRing sizing app! Say Goodbye to guessing your size!
Latest release
What’s New
General performance and stability improvements
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 Free
Screenshots
