# f/ Tools vs FlashFlashApp

The clearest difference is price: f/ Tools at $3.99 against FlashFlashApp's $9.99. f/ Tools also leads on iOS requirement (17.0 vs 26.2). FlashFlashApp's advantage is update cadence (every 2 days vs every 2 weeks). On ads, in-app purchases and device support there is nothing between them.

f/ Tools costs $3.99 and FlashFlashApp $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

f/ Tools ships an update every 2 weeks, FlashFlashApp every 2 days. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | f/ Tools | FlashFlashApp |
| --- | --- | --- |
| Price | **$3.99** | $9.99 |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/f-tools-photo-calculator/id668237473/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 93.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Paid | — |
| Size | 5 MB | 1 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Quiles](https://appshunter.io/developer/578971109) | [Egemen Gozoglu](https://appshunter.io/developer/944842459) |

## What reviewers say

### f/ Tools

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

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


### FlashFlashApp

[App page](https://appshunter.io/ios/app/flashflashapp/id6759476757)

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

**In-app purchases:** none


## Frequently asked questions

### Is f/ Tools free?

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

### Is FlashFlashApp free?

FlashFlashApp costs $9.99, with no in-app purchases.

### Do f/ Tools or FlashFlashApp have ads?

Neither f/ Tools nor FlashFlashApp shows ads.

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

f/ Tools ships an update every 2 weeks, and FlashFlashApp every 2 days. Most recently, f/ Tools was updated on November 1, 2026 and FlashFlashApp on October 28, 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.*