AppPriceData
Observed local App Store prices with one dated reference-currency comparison.
Across 5 observed Apple App Store storefronts, 公害防止管理者 水質1種 合格ナビ is free to download in every stored observation. Each country row keeps its own storefront and observation date.
Rows are sorted by the USD reference conversion when a supported exchange rate is available. The local price and currency remain the original source values.
| Rank | Storefront | Local price | USD reference | Observed | Details | Official store |
|---|---|---|---|---|---|---|
| #1 | CNChina mainland | 免费CNY | $0.00 | August 11, 2026 | Country price | App Store ↗ |
| #2 | DEGermany | GratisEUR | $0.00 | August 11, 2026 | Country price | App Store ↗ |
| #3 |
| JPJapan |
| 無料JPY |
| $0.00 |
| August 8, 2026 |
| Country price |
| App Store ↗ |
| #4 | TWTaiwan | 免費TWD | $0.00 | August 12, 2026 | Country price | App Store ↗ |
| #5 | USUnited States | FreeUSD | $0.00 | August 6, 2026 | Country price | App Store ↗ |