AutoND vs ND Filter Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AutoND
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.
- Automatic dynamic range measurement
- Filter density calculation
- Manual shutter speed input
- Filter recommendation
- Supports graduated neutral density filters
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AutoND is a utility for landscape photographers that helps them to choose the right filter density. Graduated neutral density filters are an essential tool for every landscape photographer. They are used to reduce the dynamic range of the scene, so that the camera sensor is able to catch all the details. However, determining the right filter for a situation is a tedious task. This is where AutoND comes into play. AutoND is not a camera app. It uses the camera on your mobile device to automatically measure the dynamic range of the scene and give you a filter recommendation. It can also be used as an old fashioned filter density calculator where you put in two shutter speed values by hand. Want to know the optimal filter for your scene? The workflow is surprisingly simple: - Start the app - Point your mobile devices camera to the brightest part of the scene and press the button - Then point it to the darkest part of the scene and press the button again - Now you automatically get a filter recommendation!
ND Filter Calc
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.
- Neutral density filter calculation
- Exposure compensation
- Long exposure timer
- Countdown for shutter speeds > 3 seconds
- Simple interface
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A simple neutral density filter calculator for photographers. Has a count-down timer for shutter speeds of 3 seconds and above.
Screenshots
Verdict
The clearest difference is review sentiment: ND Filter Calc at 100% against AutoND's 67%. ND Filter Calc also leads on update cadence (every 6 days vs every 9 months). AutoND's advantage is iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
AutoND ships an update every 9 months, ND Filter Calc every 6 days. The most recent releases landed on September 18, 2026 and September 30, 2026 respectively.
| Parameter | AutoND | ND Filter Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) — better | — |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | — |
| Update frequency | Every 9 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 30 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Stefan Engel | Jerry Watson |
Customer experience
AutoND
ND Filter Calc
In-app purchases
AutoND
No in-app purchases
ND Filter Calc
No in-app purchases
Questions
Is AutoND free?
Is ND Filter Calc free?
Do AutoND or ND Filter Calc have ads?
Which is updated more often, AutoND or ND Filter Calc?
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