Comparison

ZoeLog vs Kessler kOS

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

Head to head
About

ZoeLog

Streamline camera reporting for film and TV productions. This app replaces paper logbooks with custom keypads for fast data entry and cloud syncing for team-wide access. Generate professional PDF reports and share them easily with your crew.

Highlights
  • Custom keypads for fast logging
  • Automatic cloud syncing
  • Searchable camera reports
  • Professional PDF report generation
  • Real-time team sharing
  • Offline use with automatic backup
Features
Read full description

ZoeLog is designed to replace your old paper log book. Custom keypads make logging takes, lenses, and filters as fast as writing by hand. Everybody on the same job has the same notes, because it syncs to the cloud automatically. If you've ever accidentally taken a log book home with you, you know why ZoeLog exists. Built for ACs, script supervisors, and VFX teams who need searchable, sharable camera reports. No more flipping through pages to find that matching focal length. Your whole team's notes are in your pocket, the moment you need them. - Fast entry Smart keypads built for every field, so you can spend less time typing, and Smartfill copies over the notes that don't change every setup. - Professional reports Clean, readable PDFs you can hand off to post at the end of the day. - Share with anyone Invite other ZoeLog users to the log, and they'll see updates in real time. For everyone else, email, print, or even text your log to them. You control who has access. It's even cross-platform. - Never lose your log Everything backs up to the cloud automatically, so you're good if you accidentally take your phone for a swim. You can even use your log offline. It'll back up when you have service again. - Free to try One week, full access, no commitment, no credit card.

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.

Screenshots

ZoeLog4 screens

Verdict

The call

The clearest difference is review sentiment: ZoeLog at 85% against Kessler kOS's 0%. ZoeLog also leads on rating (4.7 vs 3.0) and update cadence (weekly vs every 3 months). Kessler kOS's advantage is in-app purchases (none vs 6). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ZoeLog sells 3 one-off in-app purchases. Kessler kOS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ZoeLog holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: ZoeLog has 35 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 85% of ZoeLog's written reviews are positive against 0% of Kessler kOS's.

UpkeepUpdate frequency

ZoeLog ships an update weekly, Kessler kOS every 3 months. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

Scorecard7 real differences · 3 level
ZoeLog versus Kessler kOS: the parameters behind the verdict, then further details
ParameterZoeLogKessler kOS
PriceFreeFree
Rating4.7 (35 ratings) — better3.0 (3 ratings)
Positive reviews84.6% of reviews — better0.0% of reviews
Number of ratings35 — better3
Update frequencyWeekly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPad
Requires iOS17.4 — better26.0
Further details — not scored
Size75 MB39 MB
Age rating4+4+
DeveloperZoe Van BruntKessler Crane Inc.

Customer experience

ZoeLog

All ratings35 ratings
Positive91.4%
Neutral2.9%
Negative5.7%
Written reviews26 reviews
Positive84.6%
Neutral3.8%
Negative11.5%

Kessler kOS

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

In-app purchases

3 purchases

ZoeLog

One-time3
  • 1 Month2 variants$4.99
  • Multiple Months2 variants$4.99
  • 1 Year2 variants$49.99
None

Kessler kOS

No in-app purchases

Questions

Is ZoeLog free?
ZoeLog is free to download, with in-app purchases available.
Is Kessler kOS free?
Kessler kOS is free to download, with no in-app purchases.
Which has better reviews, ZoeLog or Kessler kOS?
ZoeLog is rated higher. ZoeLog averages 4.7 out of 5 from 35 ratings, while Kessler kOS averages 3.0 from 3 ratings.
Do ZoeLog or Kessler kOS have ads?
Neither ZoeLog nor Kessler kOS shows ads.
Which is updated more often, ZoeLog or Kessler kOS?
ZoeLog ships an update weekly, and Kessler kOS every 3 months. Most recently, ZoeLog was updated on October 16, 2026 and Kessler kOS on October 12, 2026.

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