# Kessler kOS vs Fallowfield

The clearest difference is rating: Fallowfield at 4.0 against Kessler kOS's 3.0. Fallowfield also leads on update cadence (every 3 weeks vs every 3 months) and device support (3 vs 1). Kessler kOS's advantage is ratings volume (3 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fallowfield holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Kessler kOS ships an update every 3 months, Fallowfield every 3 weeks. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Kessler kOS | Fallowfield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/kessler-kos/id1128523711/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/fallowfield/id1211828192/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 39 MB | 16 MB |
| Requires iOS | 26.0 | **10.2** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kessler Crane Inc.](https://appshunter.io/developer/529307950) | [BiteSite Inc.](https://appshunter.io/developer/1211828191) |

## 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


### Fallowfield

[App page](https://appshunter.io/ios/app/fallowfield/id1211828192)

This app helps photographers and videographers visualize field of view across different camera sensors and lenses. It allows comparisons between any two cameras, including custom crop factors, to understand how focal lengths will appear on various devices.

**Highlights:** Calculate field of view between any two cameras, Compare focal lengths and fields of view, Visualize lens appearance on different camera bodies, Supports custom crop factors, Enter custom sensor dimensions, Growing list of cameras

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kessler kOS free?

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

### Is Fallowfield free?

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

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

Fallowfield is rated higher. Kessler kOS averages 3.0 out of 5 from 3 ratings, while Fallowfield averages 4.0 from 1 ratings.

### Do Kessler kOS or Fallowfield have ads?

Neither Kessler kOS nor Fallowfield shows ads.

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

Kessler kOS ships an update every 3 months, and Fallowfield every 3 weeks. Most recently, Kessler kOS was updated on October 12, 2026 and Fallowfield on September 29, 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.*