This tool helps photographers calculate neutral density filter effects on their camera's exposure. It includes a countdown timer for long exposures, simplifying the process of achieving desired results.
ND Filter Calc by Jerry Watson



198+ iOS apps curated and reviewed
ND Filter Calc is the household name in nd filter calc, but it's far from the only option. We track 198+ alternatives and competitors on iOS β many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | β | No | No | May 2026 | |
| 2 | Free | 4.5β (3.2K) | No | Yes | Jul 2026 | |
| 3 | Free | 5.0β (1) | No | No | May 2026 | |
| 4 | Free | 4.4β (62) | Yes | Yes | May 2026 | |
| 5 | Free | 2.6β (5) | No | No | May 2026 | |
| 6 | Free | 4.5β (13) | No | No | May 2026 | |
| 7 | Free | 4.4β (5) | No | No | May 2026 | |
| 8 | Free | β | No | Yes | Jun 2026 |



This tool helps photographers calculate neutral density filter effects on their camera's exposure. It includes a countdown timer for long exposures, simplifying the process of achieving desired results.



This app acts as a portable light meter for photographers. It helps you understand correct photography settings and experiment with shutter speed, aperture, and ISO in real time. Save snapshots with parameters and geolocation, and measure color temperature.





This official guide helps photographers calculate exposure adjustments when using ProGlass IRND filters. It features a built-in timer for long exposures and allows switching between different filter stops or ND values.


Calculate precise exposure times for long-exposure photography with Neutral Density filters. Features a countdown timer for exposures over 10 seconds and supports up to 24 stops of ND filtration.


This utility helps photographers determine precise exposure times when using ND filters. It also functions as a timer and trigger for compatible wireless remote controls.


This official guide helps photographers using specific long exposure filters accurately calculate required exposures. It features a flexible timer for extended shutter speeds and provides access to user guides and web resources.


This utility helps landscape photographers determine the correct graduated neutral density filter for any scene. It uses your device's camera to measure dynamic range or allows manual input for filter density calculations.


This app helps photographers determine correct exposure times for long exposure shots using ND filters. It includes a timer to capture the perfect moment and offers pro features through in-app purchases for enhanced functionality.


This app helps photographers calculate necessary ND filter settings for long exposure shots. It also assists with depth of field and exposure value calculations.


This tool helps landscape photographers calculate precise camera settings for long exposure shots. It recommends ND filter combinations, aperture, and ISO based on your current settings and desired effect. Features include tutorials and camera-specific adjustments.






This app provides essential calculators, reference tables, and cheat sheets for landscape photographers. It simplifies complex calculations for long exposures, ND filters, astrophotography, and various lighting conditions. Features include a built-in timer and quick access to favorite tools.




This app helps photographers master long exposure techniques by calculating the correct ND filters needed for desired effects. It also provides real-time light metering, golden hour tracking, and weather information to plan perfect shots.


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.


This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.


Simulate the effects of real optical filters for black and white photography. This app accurately mimics the luminance modulation of red, yellow, green, blue, and orange filters. It also includes an automatic shutter speed calculator for ND filters and a pinhole photography simulator.

