About this app
Ever wondered how machine learning actually works under the hood? Getting a basic level of understanding is much easier than you might suspect. It won't take up much of your time, and may pay off dividends throughout your life and career. The goal is to provide the gentlest introduction possible. There's quizzes to test your understanding each step of the way, so you'll find out right away when you misunderstood something and need to backtrack. Best of luck! * No advertisements * No sign-up screens * No previous knowledge of statistics required * No coding skills required * No calculus - difficult math will be skipped * Follow along in a spreadsheet if you like * Supports dark theme * Supports portrait & landscape mode * Optional narrator voice-over * Option to answer with your voice When using audio mode with earphones or speakers, the app reacts to taps anywhere on the screen, so you can practice without looking at the screen.
Latest release
What’s New
New content: neural networks Changed the design of the "jargon explained" view Fixed a typo in module 1 Renamed the modules to hint at their content
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 observed Aug 1, 2026 · 1:27 PM Free
Screenshots
