📈Last 7 days+15 installs — 21% slower than the week before (+19) · 1/day since Oct 9
🏆Among Business appstop 10% by installs gained this week (1337 peers growing)
🛠Updatesactively updated · updated 14 days ago · every ~25 days (2 updates tracked)
Installs since launch
+34 installs
since Oct 9
Update history
1.22.3Oct 31, 2026 · seen Nov 4, 2026
- Added one-tap buttons on the student info screen to call the phone number or start an email to the contact address.<br>- Fixed an issue in "Add to multiple students" where the student list became too small to select when the keyboard was open.
1.22.1Oct 6, 2026 · seen Oct 25, 2026
Fixed an issue where the lesson schedule for the bottom three months (Oct–Dec) could be cut off in the student envelope preview on wider screens.
Monthly Fee Stamp is a business app by SINQWELL with 100+ downloads (about 435 estimated). +15 installs in the last 7 days. Released Dec 3, 2025. Install growth, rank history, SDKs and ad networks.
From the store listing: “Manage tuition & lesson schedules for your music or hobby studio. Free to start!”
