# Kessler kOS

> Advanced camera motion control software for Kessler systems. (iPhone/iPad app by Kessler Crane Inc..)

- Source: https://appshunter.io/ios/app/kessler-kos/id1128523711 (this page in markdown: same URL + `.md`)
- Developer: [Kessler Crane Inc.](https://appshunter.io/developer/529307950)
- Category: Photo & Video, Productivity
- Price: Free
- Rating: 3.00/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 38 MB
- Languages: American English
- Released: 2016-07-07
- Data updated: 2026-07-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/kessler-kos/id1128523711/reviews.md

## What is Kessler kOS?

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.

## Key features

- 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

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/kessler-kos/id1128523711/reviews.md

### 2/5 — Works when it wants to

*2025-12-30*

Sometimes it’ll connect to the device, but most of the time it doesn’t with client mode. Need to release an update for more consistent performance. Besides that it’s really cool when all is working.

### 2/5 — Event Mode doesn’t work

*2021-03-26*

I have no idea how this version got released.  Kessler is aware of it but hasn’t put out an update yet.  The real kicker is this is a paid upgrade to KOS.

## Frequently asked questions about Kessler kOS

### What Kessler motion control systems does kOS support?

kOS supports Kessler's industry-leading motion control systems including Second Shooter Plus, Second Shooter Pro, and the CineShooter. It allows for wireless control of these devices via iPad.

### What types of camera moves can I create with kOS?

You can create live, looping, stop motion, timelapse, GigaPixel, and Event Mode camera moves. The software offers ultra-refined keyframe-based control for precise movements.

### How does kOS ensure repeatable camera movements?

kOS saves your exact positioning for each keyframe, ensuring 100% repeatable moves. You can also edit keyframes to fine-tune positions without re-recording the entire move.

### Can I schedule camera moves to start at a specific time with kOS?

Yes, kOS allows you to set a delay by date/time for your moves. You can also set a fixed amount of time for the move to begin, making it convenient for unattended shoots.

### Does kOS offer features for timelapse photography?

Yes, kOS includes specific features for timelapse mode, such as adding pre and post-photos. It also offers easy keyframe smoothing with editable curves for smooth motion transitions.

### What is Event Mode in kOS used for?

Event Mode is designed for live events or scenarios requiring quick recall of exact positions. It's useful for filming live concerts or repeatedly hitting actor marks on set.

### Is kOS available on devices other than iPad?

Based on the provided data, kOS is currently supported on iPad devices. This allows for convenient wireless control of your Kessler motion control systems.

### How often is kOS updated?

The latest version of kOS is 5.2.7, last updated on May 4, 2026. This indicates a history of updates, though the exact frequency is not specified.

## Version history (last 5 releases)

### 5.2.8 — 2026-07-13

* Requires and includes Second Shooter Pro firmware 1.0.1.22.
* Requires and includes 5X Control Module 1.0.1.102.
* Additional bug fixes and UI/performance improvements.

### 5.2.7 — 2026-05-04

* This app now requires iOS 18.
* This release requires and includes new controller firmware:
    * CineShooter: 1.0.1.100
    * 5X Control Module: 1.0.1.101
    * SecondShooter Pro: 1.0.1.21
* Added the ability to set the minimum time between key frames on the graph (setting is at the bottom of the Graph Options panel).
* Increased the maximum number of key frames to 40.
* Made it easier to tap on key frames and control handles when key frames are close together.
* Fixed: the locking state of key frames and handles were not persistent between app launches.
* Fixed: various display issues when running under iOS 26.
* Additional bug fixes and UI/performance improvements.

Changes to Move and Event tabs

* Renamed 'Add Move File' to 'Open Move File'.
* Added confirmation dialogs and increased the amount of explanatory text for each item on the Move and Event tab menus.
* No longer suggesting new names when adding, renaming, or duplicating a Move or Event.
* On the Event tab menu, added an 'Open Event File' option (to match the Move implementation) and removed that functionality from the 'Add New Event' window.
* Removed the 'Import Move from Device' option from the Move tab menu, since this can be better accomplished using Move files.
* When displaying the selection list for opening or importing Moves or Events, the currently selected Move or Event is no longer selected.

### 5.2.6 — 2025-08-27

kOS 5.2.6

* Fixed: the text under the app icon was not correct.
* Additional bug fixes and UI/performance improvements.

### 5.2.5 — 2025-05-22

* This app now requires iOS 17.
* Added the ability to calibrate axes in software (similar to the phone apps).
* EventManager: increased the max value for configuring the transition time to 90 seconds.
* The minimum allowed value for the motor 'Fine Adjustment' setting is now 0.01.
* Added the controller MAC address to the Settings window.
* Fixed a bug that caused parts of the UI to be disabled after closing Event Manager.
* Fixed an issue which can cause the app to lose connection with a controller.
* Fixed an issue which caused a crash when moving away from MultiLapse when there are no controllers connected.
* Fixed: the app can revert to Lite mode when not connected to the Internet.
* Fixed: tapping on 'Mark Begin' or 'Reset Axis' would sometimes cause motors on an incline to drift.
* Fixed: tapping on 'Undo' or 'Redo' when the app starts up with no motors connected can cause the app to crash.
* Fixed: Dropbox integration is broken in some cases.
* Additional bug fixes and UI/performance improvements.

### 5.2.1 — 2024-07-15

* Added support for the new '5X Control Module'.
* Various bug fixes and UI/performance improvements.

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## More apps by Kessler Crane Inc.

- [Kessler kOS for CineDrive](https://appshunter.io/ios/app/kessler-kos-for-cinedrive/id603755857)
- [Second Shooter Remote](https://appshunter.io/ios/app/second-shooter-remote/id1523101270)
- [CineShooter Remote](https://appshunter.io/ios/app/cineshooter-remote/id1537603668)

All apps by Kessler Crane Inc.: https://appshunter.io/developer/529307950

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-18.*