This tool simplifies Ansel Adams' exposure and development method for photographers. It helps measure shadows and highlights, calculate aperture and development times, and preview results with film stock presets.






170+ iOS apps curated and reviewed
Out of 170+ zone system apps on iOS, 17 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $1.99 | 5.0★ (3) | No | No | Sep 2026 | ||
| 2 | Free | 5.0★ (2) | No | Yes | Sep 2026 | ||
| 3 | $2.99 | 2.8★ (5) | No | No | Sep 2026 | ||
| 4 | $0.99 | 2.8★ (6) | No | No | Jul 2026 | ||
| 5 | Free | 4.3★ (3) | No | No | Sep 2026 | ||
| 6 | Free | 5.0★ (1) | No | No | Sep 2026 | ||
| 7 | Free | 5.0★ (1) | No | Yes | May 2026 | ||
| 8 | Free | — | — | No | Jul 2026 |






This tool simplifies Ansel Adams' exposure and development method for photographers. It helps measure shadows and highlights, calculate aperture and development times, and preview results with film stock presets.






This app assists photographers in precisely calculating exposure and tonal placement using Ansel Adams' Zone System. It offers features for metering, reciprocity correction, and development adjustments, with options for multi-point measurements and data export.






This app acts as a precise light meter for photographers, allowing you to measure light in specific areas of your scene. It helps achieve consistent exposure and accurate tonal representation, especially in challenging lighting conditions.