Abacus Lesson icon

Abacus Lesson

Hirokuma.App

★ 4.8 (507 ratings)

⬇ 100,000+ downloads

Est. actual: 186,164

Free

Released: Dec 15, 2021

IAP: $5.99 per item

No ads

Signals

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

📈Last 7 days +907 installs — 41% faster than the week before (+644) · 80/day since Oct 7
⭐Rating steady at ★ 4.81 since Oct 7
🛠Updates quiet · updated 87 days ago

Installs since launch

+2,646 installs · +12 ratings since Oct 7

Update history

1.2.3 Aug 20, 2026 · seen Oct 20, 2026

Updated Library

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

Abacus Lesson is an education app by Hirokuma.App with 100,000+ downloads (about 186K estimated). +907 installs in the last 7 days. Rated 4.8 from 507 ratings. Released Dec 15, 2021. Install growth, rank history, SDKs and ad networks.

From the store listing: “356+735+195, 23×89, 5626÷58, Can you solve each in 5 sec by mental arithmetic?”