Kessler kOS vs RED control pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
RED control pro
This application provides advanced control for select RED cinema cameras, enabling multi-camera setups and live stream monitoring. It offers features like FTP access, LUT management, and independent image orientation, with a redesigned interface for larger screens and macOS compatibility.
- Advanced control for V-RAPTOR and KOMODO cameras
- Multi-camera array management
- Live stream monitoring
- FTP file access
- Advanced LUT, CDL, and PRESET management
- Independent image orientation
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The RED Control Pro App gives users advanced control over their V-RAPTOR™, KOMODO™ and multi camera arrays. The Pro app offers advanced features and an enhanced experience, including native iPad support, multi-camera control, quick settings overview, FTP file access, advanced LUT, CDL and PRESET management, or independent image orientation setting . The app is also fully redesigned for larger screens and monitoring of live streaming from several cameras simultaneously. RED Control Pro can be installed as a native version on MacOS, which includes even more options such as clip auto download, detachable and resizable windows. Note: RED Control Pro App is compatible with V-RAPTOR, V-RAPTOR XL, V-RAPTOR X, V-RAPTOR XE, KOMODO-X and KOMODO 6K only. Not available for use with DSMC2 or previous generation RED cameras. Lens control requires a compatible electronic lens. Multi-camera control requires all devices to be connected to the same local network.
Verdict
The clearest difference is review sentiment: RED control pro at 75% against Kessler kOS's 0%. RED control pro also leads on rating (4.2 vs 3.0) and update cadence (every 2 weeks vs every 3 months). Kessler kOS's advantage is price (Free vs $499.99). On ratings volume, ads, in-app purchases and device support 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
Kessler kOS is free to download; RED control pro costs $499.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RED control pro holds the better App Store score, 4.2 against 3.0. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews point the same way: 0% of Kessler kOS's written reviews are positive against 75% of RED control pro's.
Kessler kOS ships an update every 3 months, RED control pro every 2 weeks. The most recent releases landed on July 18, 2026 and July 29, 2026 respectively.
| Parameter | Kessler kOS | RED control pro |
|---|---|---|
| Price | Free — better | $499.99 |
| Rating | 3.0 (3 ratings) | 4.2 (5 ratings) — better |
| Positive reviews | 0.0% of reviews | 75.0% of reviews — better |
| Number of ratings | 3 | 5 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPad | iPad, Mac — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Kessler Crane Inc. | RED Digital Cinema |
Customer experience
Kessler kOS
RED control pro
In-app purchases
Kessler kOS
No in-app purchases
RED control pro
No in-app purchases
Questions
Is Kessler kOS free?
Is RED control pro free?
Which has better reviews, Kessler kOS or RED control pro?
Do Kessler kOS or RED control pro have ads?
Which is updated more often, Kessler kOS or RED control pro?
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