冷凍三種の森（第三種冷凍機械責任者試験対策アプリ） icon

冷凍三種の森（第三種冷凍機械責任者試験対策アプリ）

合同会社OLA

⬇ 1,000+ downloads

Est. actual: 1,826

Free

Released: Jun 19, 2025

IAP: $4.39 per item

No ads

Signals

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

📈Last 7 days +66 installs — 5% faster than the week before (+63) · 7/day since Oct 9
🏆Among Education apps top 10% by installs gained this week (1860 peers growing)
🛠Updates dormant · updated 136 days ago

Installs since launch

+223 installs since Oct 9

Update history

2.0.6 Jun 29, 2026 · seen Oct 19, 2026

解説誤りを修正しました（2020年保安-1「ハ」）

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

冷凍三種の森（第三種冷凍機械責任者試験対策アプリ） is an education app by 合同会社OLA with 1,000+ downloads (about 1.8K estimated). +66 installs in the last 7 days. Released Jun 19, 2025. Install growth, rank history, SDKs and ad networks.

From the store listing: “A study app for past questions of the Third-Class Refrigeration Machine Operator Examination. Learn quickly with 245 questions from the past 7 years, plus automatically generated questions based on the forgetting curve!”