# NDCalc2 vs Filterfotograf Fototools

The clearest difference is review sentiment: Filterfotograf Fototools at 100% against NDCalc2's 0%. Filterfotograf Fototools also leads on price (Free vs $0.99) and update cadence (weekly vs every 10 months). NDCalc2's advantage is iOS requirement (7.0 vs 16.4). On ads, in-app purchases and device support there is nothing between them.

Filterfotograf Fototools is free to download; NDCalc2 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NDCalc2 ships an update every 10 months, Filterfotograf Fototools weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NDCalc2 | Filterfotograf Fototools |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/ndcalc2/id822835884/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Weekly** |
| Monetization | Paid | **Free** |
| Size | 20 MB | 83 MB |
| Requires iOS | **7.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Boris Nienke](https://appshunter.io/developer/300699195) | [Riko Best](https://appshunter.io/developer/6807484424) |

## What reviewers say

### NDCalc2

[App page](https://appshunter.io/ios/app/ndcalc2/id822835884)

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.

**Highlights:** Calculate exposure time with ND filters, Supports iPhone 5/s/c screens, Multi-Select Mode for filter stacking, Add custom ND filters, Delete and reorder filters, Countdown timer for long exposures

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Filterfotograf Fototools

[App page](https://appshunter.io/ios/app/filterfotograf-fototools/id6807484422)

This app provides landscape photographers with essential tools for planning and executing shots. Calculate exposure with ND filters, analyze GND filter needs, determine depth of field, and plan focus stacking sequences.

**Highlights:** ND Filter Calculator, GND Analysis & Guide, Depth of Field Calculator, Hyperfocal Distance, Focus Stacking Planner, Light Meter

**In-app purchases:** none


## Frequently asked questions

### Is NDCalc2 free?

NDCalc2 costs $0.99, with no in-app purchases.

### Is Filterfotograf Fototools free?

Filterfotograf Fototools is free to download, with no in-app purchases.

### Do NDCalc2 or Filterfotograf Fototools have ads?

Neither NDCalc2 nor Filterfotograf Fototools shows ads.

### Which is updated more often, NDCalc2 or Filterfotograf Fototools?

NDCalc2 ships an update every 10 months, and Filterfotograf Fototools weekly. Most recently, NDCalc2 was updated on November 6, 2026 and Filterfotograf Fototools on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*