# Kessler kOS vs LensKit

The clearest difference is review sentiment: LensKit at 70% against Kessler kOS's 0%. LensKit also leads on rating (4.9 vs 3.0) and ratings volume (56 vs 3). Kessler kOS's advantage is in-app purchases (none vs 3). On price, update cadence and ads there is nothing between them.

Both are free to download. LensKit sells 3 in-app purchases, starting at $4.99 per month. Kessler kOS asks for nothing beyond the download.

LensKit holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: LensKit has 56 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 70% of LensKit's.

Kessler kOS ships an update every 3 months, LensKit every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Kessler kOS | LensKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/kessler-kos/id1128523711/reviews) | **[4.9 (56 ratings)](https://appshunter.io/ios/app/lenskit-lens-tools/id1523521746/reviews)** |
| Number of ratings | 3 | **56** |
| Positive reviews | 0.0% of reviews | **70.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Freemium |
| Size | 34 MB | 165 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kessler Crane Inc.](https://appshunter.io/developer/529307950) | [Zak Ray](https://appshunter.io/developer/890528996) |

## 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


### LensKit

[App page](https://appshunter.io/ios/app/lenskit-lens-tools/id1523521746)

This app provides professional tools for filmmakers and cinematographers, offering extensive lens specifications, camera coverage simulations, and advanced depth of field calculations. It helps plan shoots, make on-set decisions, and ensure compatibility with various cameras and lenses, including Netflix-approved formats.

**Highlights:** Extensive lens database (2000+ lenses), Camera sensor coverage simulation, Lens matching for various configurations, Depth of field calculator, Shot preview and framing simulation, Netflix 4K mandate compliance tool

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual Subscription | $49.99 | per year |
| Lifetime Access | $99.99 | one-time |


## Frequently asked questions

### Is Kessler kOS free?

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

### Is LensKit free?

LensKit is free to download, with in-app purchases available.

### Which has better reviews, Kessler kOS or LensKit?

LensKit is rated higher. Kessler kOS averages 3.0 out of 5 from 3 ratings, while LensKit averages 4.9 from 56 ratings.

### Do Kessler kOS or LensKit have ads?

Neither Kessler kOS nor LensKit shows ads.

### Which is updated more often, Kessler kOS or LensKit?

Kessler kOS ships an update every 3 months, and LensKit every 2 months. Most recently, Kessler kOS was updated on October 26, 2026 and LensKit 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.*