# f/ Tools vs Filter Simulation

The clearest difference is price: Filter Simulation at Free against f/ Tools's $3.99. Filter Simulation also leads on rating (5.0 vs 3.7). f/ Tools's advantage is update cadence (every 2 weeks vs monthly) and chart position (#85 vs unranked). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Filter Simulation is free to download; f/ Tools costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Filter Simulation holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews point the same way: 93% of f/ Tools's written reviews are positive against 100% of Filter Simulation's.

f/ Tools ships an update every 2 weeks, Filter Simulation monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | f/ Tools | Filter Simulation |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.7 (6 ratings)](https://appshunter.io/ios/app/f-tools-photo-calculator/id668237473/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/filter-simulation/id6747726359/reviews)** |
| Number of ratings | **6** | 4 |
| Positive reviews | 93.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Paid | **Free** |
| Best chart rank | **#85** | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [David Quiles](https://appshunter.io/developer/578971109) | [Ari Jaaksi](https://appshunter.io/developer/1770069317) |

## What reviewers say

### f/ Tools

[App page](https://appshunter.io/ios/app/f-tools-photo-calculator/id668237473)

**Currently charting:** #85 Top Paid · Photo & Video (US App Store)

This photography tool offers a suite of calculators for concepts like depth of field, print resolution, and flash exposure. It helps users visually grasp complex photographic principles with integrated help and a glossary. The app also includes a camera bag feature with lens limits.

**Highlights:** Graphic depth of field calculator, Graphic Airy disc calculator, Graphic format calculator, Motion freeze calculator, Graphic blur size calculator, Graphic flash exposure calculator, Camera bag with lens limits

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

**In-app purchases:** none


### Filter Simulation

[App page](https://appshunter.io/ios/app/filter-simulation/id6747726359)

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.

**Highlights:** Simulate optical filters for B&W, Mimics red, yellow, green, blue, orange filters, Custom CIColorKernel shaders, Automatic shutter speed calculator for ND filters, Pinhole photograph simulation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is f/ Tools free?

f/ Tools costs $3.99, with no in-app purchases.

### Is Filter Simulation free?

Filter Simulation is free to download, with no in-app purchases.

### Which has better reviews, f/ Tools or Filter Simulation?

Filter Simulation is rated higher. f/ Tools averages 3.7 out of 5 from 6 ratings, while Filter Simulation averages 5.0 from 4 ratings.

### Do f/ Tools or Filter Simulation have ads?

Neither f/ Tools nor Filter Simulation shows ads.

### Which is updated more often, f/ Tools or Filter Simulation?

f/ Tools ships an update every 2 weeks, and Filter Simulation monthly. Most recently, f/ Tools was updated on October 24, 2026 and Filter Simulation on October 24, 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.*