We only use public information. Nothing here comes from Apple’s private data.
Steps
- 1
Rankings: the public App Store charts of 175 countries, read every day.
- 2
App details (ratings, description, size, screenshots): Apple’s public lookup, refreshed about once a week.
- 3
Revenue figures are estimates calculated from an app’s Top Grossing rank. They are not Apple’s numbers and are always labelled “Estimated”.
- 4
Scores such as small & simple and keyword difficulty are our own formulas. Each one shows its inputs.
- 5
apptomy is not affiliated with Apple Inc.
The full method is on the “How we estimate” page.