# f8 Lens Toolkit vs Stop Calculator

The clearest difference is price: Stop Calculator at $0.99 against f8 Lens Toolkit's $9.99. Stop Calculator also leads on update cadence (every 2 days vs every 2 months) and review sentiment (100% vs 80%). f8 Lens Toolkit's advantage is ratings volume (26 vs 4). On rating, ads, in-app purchases and monetization model there is nothing between them.

f8 Lens Toolkit costs $9.99 and Stop Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for f8 Lens Toolkit against 5.0 for Stop Calculator. That said, the two scores are not equally well evidenced: f8 Lens Toolkit has 26 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 80% of f8 Lens Toolkit's written reviews are positive against 100% of Stop Calculator's.

f8 Lens Toolkit ships an update every 2 months, Stop Calculator every 2 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | f8 Lens Toolkit | Stop Calculator |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Rating | [4.9 (26 ratings)](https://appshunter.io/ios/app/f8-lens-toolkit/id887877435/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/stop-calculator/id6720706774/reviews)** |
| Number of ratings | **26** | 4 |
| Positive reviews | 79.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 4 MB | 1 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cadrage GmbH](https://appshunter.io/developer/793232743) | [eric Hernandez](https://appshunter.io/developer/875120891) |

## What reviewers say

### f8 Lens Toolkit

[App page](https://appshunter.io/ios/app/f8-lens-toolkit/id887877435)

This app provides photographers and cinematographers with essential tools for optical calculations. It offers features like depth of field calculation, field of view determination, and lens matching for various camera formats. It's designed to be an indispensable reference tool for professionals and students alike.

**Highlights:** Depth of Field & Hyperfocal Distance Calculator, Field of View Calculator, Lens Matcher: Equivalent Focal Length & F-Stop, Camera Sensor Comparison Tool, Lens Coverage Tool, Extensive camera and lens database, Supports anamorphic shooting and Speedboosters

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

**In-app purchases:** none


### Stop Calculator

[App page](https://appshunter.io/ios/app/stop-calculator/id6720706774)

This tool helps filmmakers quickly compare exposure settings between two cameras. It calculates precise stop differences in real-time, ensuring your shots are perfectly exposed and matched across different setups. Simplify your workflow and eliminate guesswork.

**Highlights:** Compare ISO, t-stop, shutter angle, and FPS, Real-time stop difference calculation, Intuitive interface for filmmakers, Exposure feedback for underexposed/overexposed shots

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

**In-app purchases:** none


## Frequently asked questions

### Is f8 Lens Toolkit free?

f8 Lens Toolkit costs $9.99, with no in-app purchases.

### Is Stop Calculator free?

Stop Calculator costs $0.99, with no in-app purchases.

### Which has better reviews, f8 Lens Toolkit or Stop Calculator?

Stop Calculator is rated higher. f8 Lens Toolkit averages 4.9 out of 5 from 26 ratings, while Stop Calculator averages 5.0 from 4 ratings.

### Do f8 Lens Toolkit or Stop Calculator have ads?

Neither f8 Lens Toolkit nor Stop Calculator shows ads.

### Which is updated more often, f8 Lens Toolkit or Stop Calculator?

f8 Lens Toolkit ships an update every 2 months, and Stop Calculator every 2 days. Most recently, f8 Lens Toolkit was updated on October 26, 2026 and Stop Calculator 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.*