# f8 Lens Toolkit vs BLACKSLATE7

The clearest difference is review sentiment: f8 Lens Toolkit at 80% against BLACKSLATE7's 20%. f8 Lens Toolkit also leads on rating (4.9 vs 2.7) and ratings volume (26 vs 6). BLACKSLATE7's advantage is price (Free vs $9.99) and iOS requirement (14.0 vs 16.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

BLACKSLATE7 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 2.7. Both are backed by a comparable volume of ratings — 26 and 6 respectively. Written reviews point the same way: 80% of f8 Lens Toolkit's written reviews are positive against 20% of BLACKSLATE7's.

f8 Lens Toolkit ships an update every 2 months, BLACKSLATE7 every 3 months. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | f8 Lens Toolkit | BLACKSLATE7 |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.9 (26 ratings)](https://appshunter.io/ios/app/f8-lens-toolkit/id887877435/reviews)** | [2.7 (6 ratings)](https://appshunter.io/ios/app/blackslate7/id6443485693/reviews) |
| Number of ratings | **26** | 6 |
| Positive reviews | **79.5% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 4 MB | 19 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cadrage GmbH](https://appshunter.io/developer/793232743) | [Lummico Sp. z o.o.](https://appshunter.io/developer/1645077423) |

## 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


### BLACKSLATE7

[App page](https://appshunter.io/ios/app/blackslate7/id6443485693)

This app transforms your smartphone into a programmable clapperboard for film and TV production. Easily load custom images or pre-set templates onto a compatible physical slate using NFC technology. Adjust image contrast and create grayscale effects for optimal visual output.

**Highlights:** Program images onto physical slate via NFC, Load pre-set SLATE templates, Create custom clapperboard images, Crop, scale, and rotate images, Adjust black/white threshold for contrast, Unique dithering control for grayscale simulation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is f8 Lens Toolkit free?

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

### Is BLACKSLATE7 free?

BLACKSLATE7 is free to download, with no in-app purchases.

### Which has better reviews, f8 Lens Toolkit or BLACKSLATE7?

f8 Lens Toolkit is rated higher. f8 Lens Toolkit averages 4.9 out of 5 from 26 ratings, while BLACKSLATE7 averages 2.7 from 6 ratings.

### Do f8 Lens Toolkit or BLACKSLATE7 have ads?

Neither f8 Lens Toolkit nor BLACKSLATE7 shows ads.

### Which is updated more often, f8 Lens Toolkit or BLACKSLATE7?

f8 Lens Toolkit ships an update every 2 months, and BLACKSLATE7 every 3 months. Most recently, f8 Lens Toolkit was updated on October 18, 2026 and BLACKSLATE7 on October 10, 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.*