Comparison

Kessler kOS vs Fallowfield

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Kessler kOS

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
Read full description

kOS is an advanced camera motion control software that unlocks the highest level of control and features for Kessler’s industry-leading motion control systems including Second Shooter Plus, Second Shooter Pro, and the newest motion control system CineShooter. This app allows for ultra-refined keyframe based control in a powerful and easy-to-use interface for applications such as timelapse, stop motion, live video/cinematography, event video, and advanced photography controlled wirelessly via iPad. CONTROL ANY MOTION Live, looping, stop motion, timelapse, GigaPixel* and Event Mode camera moves at your fingertips. DIGITAL KEYRAMING Simply move each axis into position and hit record. kOS saves your exact positioning for 100% repeatable moves. WIFI CONNECTIVITY Your CineShooter, Second Shooter Pro, or Second Shooter Plus device creates its own WiFi network that you can connect your device to instantly. COMPLEX KEYFRAME MOVEMENT Create up to 20 keyframes at once for ultra complex movement. EASY KEYFRAME SMOOTHING Add and manipulate curves to your moves for ease-in and ease-out motion. Also, link each side of the keyframe to match. EDITABLE KEYFRAMES No need to re-record the move if it's not exactly what you want. Edit one or all axes and keyframes into the perfect position. Featuring incremental, exact motor position plus tap and move keyframe adjustments. REPEATABILITY Repeat the exact same move over and over again at the same speed or variable speeds depending on the application. DELAY BY DATE/TIME Not going to be around when your move needs to start? No problem. Easily set a date/time or fixed amount of time to have your move begin. kOS takes care of the rest. FLASH MARK/BLOOP Sync up your moves easily via the built-in flash marks with adjustable delay. PRE & POST-PHOTOS (TIMELAPSE MODE) Easily add a series of head or tail photos to your timelapse move. GO TO POSITION Set minimum and maximum ranges on each axis (ie. slider 0" to 32") and go to any position by entering a value. LOAD & GO This feature allows for pre-loading a move so that you are able to start instantly whenever you are ready. CAMERA PRE and POST ROLL Trigger your camera to start recording any amount of time before the move begins and when to stop after the move ends. ANALOG CONTROL PANEL Manually control several axes live with the built in analog controller. EVENT MODE Event mode is mainly intended for live events or scenarios where exact position recalling on-the-fly is needed. For example, if you are filming a live concert, you can have different positions on stage saved. You can move easily from the drummer, to the guitarist, to the lead singer and so forth. This mode is also great for repeatedly hitting actor marks on set. GIGAPIXEL GigaPixel is traditionally used for 360 degree virtual tours, panoramic photographs or GigaPixel images which are extremely high resolution photographs that are compiled of many lower resolution photographs. GRAPH EXPANSION Expand the graph with one touch when precise key framing is needed. SCRUB THROUGH MOVE Need to edit a key frame or see when the camera will be in a certain position? Use the scrub feature to instantly move to a desired position. LOOPING Looping is made easy with kOS. Simply select one-time or continuous looping. CAMERA CONTROL Set CineShooter, Second Shooter Pro, Second Shooter Plus device to trigger or control your camera’s exposure time within kOS. AUTO TIMELAPSE CALCULATION Enter your desired clip length and frame rate, then kOS will calculate the run time needed. BUMP BUTTONS Move in very small increments to ensure a precise camera position. DROPBOX INTEGRATION Upload saved moves directly to your Dropbox account within kOS app. MOTOR CONFIGURATION Each axis is able to be customized with individual features such as run speed, dampening, smoothness of curves, bump button, and axis naming.

About

Fallowfield

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
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As photographers and videographers, we're always taking crop factor into account. The problem is, we're always comparing our focal lengths and fields of view to what they would look like on a full-frame camera. What if you don't have a full-frame camera or what if you've never shot on a full-frame camera to have any idea what those lenses would look like? Well Fallowfield allows you to pick your point of comparison. Fallowfield is an app that allows you to calculate field of view between any 2 cameras. Let's say you're considering buying a new camera with a new lens. Maybe you want to pick up a Blackmagic Pocket Cinema Camera with a 20mm lens and you currently own a Canon Rebel. Well with Fallowfield, you'll be able to easily figure out what a 20mm lens on a BMPCC will look like on a Canon Rebel. Of course, you can always pick a full-frame camera as well if you're curious how that will look. Don’t see your camera in the list? No problem! Fallowfield lets you enter custom crop factors. If you don’t know your crop factor, you can also enter your sensor dimensions. With a growing list of cameras and internet-search-based crop factors, we hope that our community of users will submit any errors or omissions. Enjoy this simple little app that helps you get a real-world sense of crop-factors.

Screenshots

Fallowfield4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Kessler kOS versus Fallowfield: the parameters behind the verdict, then further details
ParameterKessler kOSFallowfield
PriceFreeFree
Rating3.0 (3 ratings)4.0 (1 ratings) — better
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPhone, iPad, iPod — better
Requires iOS26.010.2 — better
Further details — not scored
Size39 MB16 MB
Age rating4+4+
DeveloperKessler Crane Inc.BiteSite Inc.

Customer experience

Kessler kOS

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Fallowfield

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Kessler kOS

No in-app purchases

None

Fallowfield

No in-app purchases

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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