AppPriceData
Observed local App Store prices with one dated reference-currency comparison.
Across 4 observed Apple App Store storefronts, Air Quality Tracker: Pollution 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 | DEGermany | GratisEUR | $0.00 | August 15, 2026 | Country price | App Store ↗ |
| #2 | FRFrance | GratuitEUR | $0.00 | August 15, 2026 | Country price | App Store ↗ |
| #3 | NGNigeria | FreeNGN | $0.00 | August 15, 2026 | Country price | App Store ↗ |
| #4 | USUnited States | FreeUSD | $0.00 | August 15, 2026 | Country price | App Store ↗ |