# Kessler kOS vs Bluetooth+ for Blackmagic

The clearest difference is review sentiment: Bluetooth+ for Blackmagic at 60% against Kessler kOS's 0%. Bluetooth+ for Blackmagic also leads on rating (4.7 vs 3.0) and ratings volume (1.2K vs 3). Kessler kOS's advantage is price (Free vs $5.99) and in-app purchases (none vs 2). On ads there is nothing between them.

Kessler kOS is free to download; Bluetooth+ for Blackmagic costs $5.99 up front. Bluetooth+ for Blackmagic sells 2 one-off in-app purchases. Kessler kOS asks for nothing beyond the download.

Bluetooth+ for Blackmagic holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Bluetooth+ for Blackmagic has 1.2K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Kessler kOS's written reviews are positive against 60% of Bluetooth+ for Blackmagic's.

Kessler kOS ships an update every 3 months, Bluetooth+ for Blackmagic every 6 weeks. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Kessler kOS | Bluetooth+ for Blackmagic |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/kessler-kos/id1128523711/reviews) | **[4.7 (1.2K ratings)](https://appshunter.io/ios/app/bluetooth-plus-for-blackmagic/id1376947780/reviews)** |
| Number of ratings | 3 | **1.2K** |
| Positive reviews | 0.0% of reviews | **60.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#52** |
| Size | 39 MB | 17 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kessler Crane Inc.](https://appshunter.io/developer/529307950) | [We Are Empire PTY LTD](https://appshunter.io/developer/356298444) |

## What reviewers say

### Kessler kOS

[App page](https://appshunter.io/ios/app/kessler-kos/id1128523711)

This advanced software provides precise wireless control for professional camera motion systems. It enables users to create complex, repeatable camera movements for various video and photography applications through an intuitive interface.

**Highlights:** Ultra-refined keyframe control, Wireless iPad control, Timelapse and stop motion modes, Complex keyframe movement, Editable keyframes, Repeatable camera moves, Event mode for live scenarios

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

**In-app purchases:** none


### Bluetooth+ for Blackmagic

[App page](https://appshunter.io/ios/app/bluetooth-plus-for-blackmagic/id1376947780)

**Currently charting:** #52 Top Paid · Photo & Video (US App Store)

Control Blackmagic cameras remotely via Bluetooth. Manage multiple cameras simultaneously, adjust settings like white balance, frame rate, and ISO, and even control focus and zoom with external controllers.

**Highlights:** External controller support (Tilta Nucleus), Multi-cam control (up to 12 cameras), Camera grouping and custom settings, Remote focus and zoom control, Start/stop recording, Adjust white balance, ISO, frame rate, Digital slate metadata entry

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multi-Cam Control | $9.99 | one-time |
| Pro | $9.99 | one-time |

**What reviewers like**

- 🚀 Seamless camera control
- 👍 Intuitive and responsive interface
- 🔒 Reliable Bluetooth connectivity
- 💡 Useful focus pulling feature
- 👍 Efficient workflow for remote operation

**What reviewers complain about**

- 🐛 Occasional disconnection issues
- 🔒 Limited Bluetooth range
- 🐛 Buggy behavior with certain camera models
- 🔒 Paywall for some key features
- 👎 Lack of live video monitoring

**Reported bugs**

- Recording issues with high frame rates
- Incorrect codec/resolution display for some cameras
- Focus control not working with certain lenses
- App freezes during playback

**Requested features**

- Add ability to take photos remotely
- Implement live video feed from camera
- Allow custom focus preset points
- Improve focus control sensitivity and UI
- Add support for more camera models


## Frequently asked questions

### Is Kessler kOS free?

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

### Is Bluetooth+ for Blackmagic free?

Bluetooth+ for Blackmagic costs $5.99, and also offers in-app purchases.

### Which has better reviews, Kessler kOS or Bluetooth+ for Blackmagic?

Bluetooth+ for Blackmagic is rated higher. Kessler kOS averages 3.0 out of 5 from 3 ratings, while Bluetooth+ for Blackmagic averages 4.7 from 1.2K ratings.

### Do Kessler kOS or Bluetooth+ for Blackmagic have ads?

Neither Kessler kOS nor Bluetooth+ for Blackmagic shows ads.

### Which is updated more often, Kessler kOS or Bluetooth+ for Blackmagic?

Kessler kOS ships an update every 3 months, and Bluetooth+ for Blackmagic every 6 weeks. Most recently, Kessler kOS was updated on October 12, 2026 and Bluetooth+ for Blackmagic on October 13, 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.*