Crane/Derrick Operator (Crane) icon

Crane/Derrick Operator (Crane)

Particles and Waves

⬇ 1+ downloads

Est. actual: 4

Free

Released: Sep 12, 2026

IAP: $3.29 per item

No ads

Signals

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

📈Last 7 days +1 installs · 0/day since Oct 7
🏆Among Education apps bottom 0% by installs gained this week (1889 peers growing)
🛠Updates actively updated · updated 7 days ago · every ~20 days (2 updates tracked)

Installs since launch

+2 installs since Oct 7

Update history

1.0.6 Nov 5, 2026 · seen Nov 11, 2026

ホーム・結果・合格報告・設定に、60の資格をまとめて学べる「資格のキーホルダー」の案内を出しました。このアプリでの購入は、このアプリでそのまま使えます。

1.0.3 Oct 16, 2026 · seen Oct 21, 2026

設定画面を整理し、プライバシーポリシーへの案内だけを残しました。学習記録と購入済みの内容はそのまま使えます。

Crane/Derrick Operator (Crane) is an education app by Particles and Waves with 1+ downloads (about 4 estimated). +1 installs in the last 7 days. Released Sep 12, 2026. Install growth, rank history, SDKs and ad networks.

From the store listing: “Japanese-language practice: 129 crane exam questions, weighted pass check.”