Zone System
Davin Nguyen
Getting the latest details from the App Store…
Davin Nguyen
Getting the latest details from the App Store…
Zone System is a practical tool for applying Ansel Adams’ exposure and development method. • Measure shadows and highlights to set exposure • Get aperture and development (N, N+, N–) calculations • Preview results with film stock presets • Get calculations for aperture, shutter speed, ISO, and EV This app makes the Zone System simpler, faster, and more reliable.
Top of Paid · Photo & Video in France. Zone System is #30 there. Changes are over 7 days.
How the app presents itself on the App Store. Select a screenshot to open it full size.
Version 2.6 · 19 Aug 2026 · 1 month ago
New zone styles. Choose Solid or Swatch to make zones easier to read visually.
Every chart this app is in right now, best position first.
| Chart | Rank | 24 h | 7 days | Best | Days on chart |
|---|---|---|---|---|---|
| France· Paid · Photo & Video | #30 | New entry | Change unknown | #30 | 1 |
Higher on the chart is better: #1 is at the top.
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France · Paid · Photo & Video: best #30, latest #30, over 13 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct, on 9 Oct, on 10 Oct, on 11 Oct, on 12 Oct, and on 13 Oct; the line joins the snapshots on either side.
Entries, big moves, #1s and new versions we've recorded.