🏆Among Education apps bottom 28% by installs gained this week (1752 peers growing)
🛠Updatesquiet · updated 67 days ago
Installs since launch
+3 installs
since Oct 7
Update history
20.0cSep 4, 2026 · seen Oct 19, 2026
Only the current version so far — new entries appear as the app ships updates.
꽉찬수학 is an education app by B2 Corp. with 100+ downloads (about 363 estimated). +2 installs in the last 7 days. Released Dec 18, 2018. Install growth, rank history, SDKs and ad networks.
From the store listing: “hello. This is a full-length math program that provides news on your child's education.”