RUMAHSAKU CORP.'s 下水道管理技術認定試験 試験対策 is a top-charting app on the Google Play. It has reached #17 on the Japan Top Paid chart. It is currently in the top 50 in Japan.
Chart History
Rank over the last 27 days
Currently in Top 50
| Market | Store | Tab | Category | List | Rank |
|---|---|---|---|---|---|
| JP | Google Play | apps | education | paid | #46 |
Best Rankings
| Market | Category | List | Best Rank | Date |
|---|---|---|---|---|
| JP | education | paid | #17 | 2026-07-23 |