# f8 Lens Toolkit vs Donna Pro

The clearest difference is price: Donna Pro at Free against f8 Lens Toolkit's $9.99. Donna Pro also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (8.0 vs 16.0). f8 Lens Toolkit's advantage is rating (4.9 vs 4.5) and review sentiment (80% vs 60%). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Donna Pro is free to download; f8 Lens Toolkit costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

f8 Lens Toolkit holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 26 and 14 respectively. Written reviews point the same way: 80% of f8 Lens Toolkit's written reviews are positive against 60% of Donna Pro's.

f8 Lens Toolkit ships an update every 2 months, Donna Pro every 4 days. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | f8 Lens Toolkit | Donna Pro |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.9 (26 ratings)](https://appshunter.io/ios/app/f8-lens-toolkit/id887877435/reviews)** | [4.5 (14 ratings)](https://appshunter.io/ios/app/donna-pro/id1248670372/reviews) |
| Number of ratings | **26** | 14 |
| Positive reviews | **79.5% of reviews** | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Paid | **Free** |
| Size | 4 MB | 256 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cadrage GmbH](https://appshunter.io/developer/793232743) | [Kristopher Prygrocki](https://appshunter.io/developer/824447689) |

## 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


### Donna Pro

[App page](https://appshunter.io/ios/app/donna-pro/id1248670372)

This app simulates the menu structure of RED cameras, allowing users to learn, practice, and reference settings. It's a valuable tool for filmmakers and technicians working with RED camera systems, offering quick access to information and support resources.

**Highlights:** Realtime Push Notifications, IPP2 Menu Tree Simulation, RED TECH information, FAQ and Support access, Frame rate and resolution calculator, Learn, practice, and reference menu structure

**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 Donna Pro free?

Donna Pro is free to download, with no in-app purchases.

### Which has better reviews, f8 Lens Toolkit or Donna Pro?

f8 Lens Toolkit is rated higher. f8 Lens Toolkit averages 4.9 out of 5 from 26 ratings, while Donna Pro averages 4.5 from 14 ratings.

### Do f8 Lens Toolkit or Donna Pro have ads?

Neither f8 Lens Toolkit nor Donna Pro shows ads.

### Which is updated more often, f8 Lens Toolkit or Donna Pro?

f8 Lens Toolkit ships an update every 2 months, and Donna Pro every 4 days. Most recently, f8 Lens Toolkit was updated on October 18, 2026 and Donna Pro on October 15, 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.*