84+ iOS apps curated and reviewed
Finding the right ndcalc apps can be overwhelming with so many options. We've analyzed 84+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | — | — | No | Jul 2026 | |
| 2 |  | $1.99 | 3.4★ (5) | No | No | Sep 2026 | |
| 3 |  | $0.99 | 1.5★ (2) | No | No | Jul 2026 | |
| 4 |  | Free | 4.8★ (6.9K) | No | No | Sep 2026 | |
| 5 |  | Free | 4.3★ (11) | No | No | May 2026 | |
| 6 |  | Free | 4.8★ (413K) | No | No | Sep 2026 | |
| 7 |  | $24.99 | 4.7★ (69) | No | No | Sep 2026 | |
| 8 |  | Free | 4.8★ (253) | No | No | Sep 2026 |
This utility app assists photographers in determining the correct shutter speed when using neutral density filters. Input your filter's stops and base shutter speed to instantly get the adjusted exposure time, with an optional countdown timer for long exposures.
Calculate correct exposure times when using ND filters for long exposures. Easily manage your filter collection, add custom filters, and switch between single and multi-select modes for stacking.
