RUMAHSAKU CORP.'s 排水設備工事責任技術者 試験対策 is a top-charting app on the Google Play. It has reached #26 on the Japan Top Paid chart. It is currently in the top 50 in Japan.
Chart History
Rank over the last 8 days
Currently in Top 50
| Market | Store | Tab | Category | List | Rank |
|---|---|---|---|---|---|
| JP | Google Play | apps | education | paid | #42 |
Best Rankings
| Market | Category | List | Best Rank | Date |
|---|---|---|---|---|
| JP | education | paid | #26 | 2026-07-22 |