No revenue estimate for APPLE — its rating/review counts don't calibrate to sales the way Steam's do. Reviews and prices only.
Piano Chord Guide: Chord Game
“I understand the chord, but I can’t instantly tell which keys to play on the keyboard…” This app is for you. 【Features】 - Multiple-choice quizzes (2–4 options) - Level up from simple chords with a game-like progression - Custom Mode to choose which chords appear * - Customizable chord symbols (e.g., Cm → C-) - Theme color options - Dark Mode support * A Premium purchase is required to use this feature.
MoreLess
Estimated lifetime revenue
Free-to-play
Revenue comes from in-game items and microtransactions, which our price-based model doesn't estimate.
Ratings
3100%
read from the US store
Trends
Historical charts
Price$0.00
$0.00$0.00$0.01$0.01$0.00
Sep '26Sep '26Sep '26Sep '26Sep '26
Price over time on the United States storefront, quoted in USD — from our own daily price tracking. Other markets are listed under "Price by market" in the Prices tab; they are not on this axis, because one line cannot be two currencies.
Showing the last 90 days (the review-based charts: the last 4 monthly points). Full history and CSV export come with a free account.
Related