# Kessler kOS vs MixEffect Pro

The clearest difference is review sentiment: MixEffect Pro at 64% against Kessler kOS's 0%. MixEffect Pro also leads on rating (4.3 vs 3.0) and chart position (#191 vs unranked). Kessler kOS's advantage is price (Free vs $49.99) and in-app purchases (none vs 4). On update cadence and ads there is nothing between them.

Kessler kOS is free to download; MixEffect Pro costs $49.99 up front. MixEffect Pro sells 4 one-off in-app purchases. Kessler kOS asks for nothing beyond the download.

MixEffect Pro holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: MixEffect Pro has 15 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 64% of MixEffect Pro's.

Kessler kOS ships an update every 3 months, MixEffect Pro every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Kessler kOS | MixEffect Pro |
| --- | --- | --- |
| Price | **Free** | $49.99 |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/kessler-kos/id1128523711/reviews) | **[4.3 (15 ratings)](https://appshunter.io/ios/app/mixeffect-pro-paid-up-front/id1617749057/reviews)** |
| Number of ratings | 3 | **15** |
| Positive reviews | 0.0% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#191** |
| Size | 34 MB | 165 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Kessler Crane Inc.](https://appshunter.io/developer/529307950) | [Adam Tow](https://appshunter.io/developer/376550492) |

## 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


### MixEffect Pro

[App page](https://appshunter.io/ios/app/mixeffect-pro-paid-up-front/id1617749057)

**Currently charting:** #191 Top Paid · Photo & Video (US App Store)

Control your ATEM video switchers with a comprehensive remote interface. Manage switcher settings, audio, macros, media, and transitions. Features include animated SuperSource transitions, Video Follows Audio, and customizable layouts.

**Highlights:** Multiple ATEM switcher control, Animated SuperSource transitions, Video Follows Audio, Customizable layouts, Macro management with icons, Audio input gain and fader control, External camera Multiview support

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| Mega Tip | $9.99 | one-time |


## Frequently asked questions

### Is Kessler kOS free?

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

### Is MixEffect Pro free?

MixEffect Pro costs $49.99, and also offers in-app purchases.

### Which has better reviews, Kessler kOS or MixEffect Pro?

MixEffect Pro is rated higher. Kessler kOS averages 3.0 out of 5 from 3 ratings, while MixEffect Pro averages 4.3 from 15 ratings.

### Do Kessler kOS or MixEffect Pro have ads?

Neither Kessler kOS nor MixEffect Pro shows ads.

### Which is updated more often, Kessler kOS or MixEffect Pro?

Kessler kOS ships an update every 3 months, and MixEffect Pro every 2 months. Most recently, Kessler kOS was updated on November 6, 2026 and MixEffect Pro on November 3, 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.*