About this app
The Kelly Calculator is a simple calculator for the Kelly betting strategy. The Kelly strategy is a formula used to determine the optimal size of a series of bets. In most gambling scenarios, and some investing scenarios under some simplifying assumptions, the Kelly strategy will do better than any essentially different strategy in the long run. It was published by J.L.Kelly in 1956 as a theoretical work. Edward O Thorp first demonstrated practical uses of the strategy in 1961.
Latest release
What’s New
This update from Apple will improve the functionality of this app. No new features are included. iOS 9 compatibility.
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 21, 2026 · 11:42 AM Free
Screenshots
