📈Last 7 days+73 installs — 46% slower than the week before (+135) · 8/day since Oct 7
🏆Among Music & Audio appstop 16% by installs gained this week (239 peers growing)
🛠Updatesquiet · updated 51 days ago
Installs since launch
+208 installs
since Oct 7
Update history
6.0.0Sep 22, 2026 · seen Oct 24, 2026
The app's design and UI have been improved across the board.<br>Difficulty 5 in Interval Test no longer includes triply augmented and triply diminished questions, and difficulty now rises in stages.<br>In Ear Training, Harmonic intervals now offer a longer note value (whole note).<br>The way Interval Test and Ear Training data is saved has changed, so your saved wrong answers will be reset.
Only the current version so far — new entries appear as the app ships updates.
Interval Calculator & Quiz is a music & audio app by HEE GWANG KIM with 10,000+ downloads (about 39K estimated). +73 installs in the last 7 days. Released Jan 9, 2020. Install growth, rank history, SDKs and ad networks.
From the store listing: “Music theory & interval ear training — the foundation of harmony and scales”
