AppPriceData
Observed local App Store prices with one dated reference-currency comparison.
Among 4 observed Apple App Store storefronts, Taiwan has the lowest reference-converted download price for Pool Water Calculator: $150.00 (about $4.68 using the 2026-08-15 reference-rate snapshot).
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 | TWTaiwan | $150.00TWD | $4.68 | August 11, 2026 | Country price | App Store ↗ |
| #2 | USUnited States | $4.99USD | $4.99 | August 5, 2026 | Country price |
| App Store ↗ |
| #3 | JPJapan | ¥800JPY | $5.03 | August 14, 2026 | Country price | App Store ↗ |
| #4 | CNChina mainland | ¥38.00CNY | $5.64 | August 11, 2026 | Country price | App Store ↗ |