9th math key & book in English icon

9th math key & book in English

Online Math Learning

⬇ 10,000+ downloads

Est. actual: 48,045

Free

Released: Nov 25, 2022

No in-app purchases

Contains ads

Signals

3 this week · 2 positive · 1 warning All of this week's signals →

📈Last 7 days +25 installs — 47% faster than the week before (+17) · 2/day since Oct 7
🏆Among Education apps top 18% by installs gained this week (1677 peers growing)
🛠Updates dormant · updated 420 days ago

Installs since launch

+73 installs since Oct 7

Update history

2.3 Sep 16, 2025 · seen Oct 19, 2026

New Features

Only the current version so far — new entries appear as the app ships updates.

9th math key & book in English is an education app by Online Math Learning with 10,000+ downloads (about 48K estimated). +25 installs in the last 7 days. Released Nov 25, 2022. Install growth, rank history, SDKs and ad networks.

From the store listing: “Book Key book and lectures”