KartTracker CL vs SIM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KartTracker CL
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KartTracker Classic is the original version of our fully automated, wireless timing system for up to 4 karts. Laps and sectors are timed with 0.001s precision on your mobile without pressing a button or lifting a finger. Simply install one of our KartTracker timers on your kart and you're ready to go. KartTracker is compatible with standard magnetic timing strips as found on most karting tracks. In addition, KartTracker Classic includes a manual lap timer which can be combined with the automatic timing system or used as a standalone timer. It is the easiest and most accurate on the market. Big buttons which instantly record the time. No more trying to hit the tiny Lap button of the built-in stopwatch. You can mix automatic timing (for your own drivers) with manual timing (for the competition ;-) ) so you can easily compare lap times. Features: * Time 1 to 4 different drivers, using large buttons which fill the screen * Mix automatic (using KartTracker timers, available on our website) and manual timing to your heart's content * Scrollable results list of recorded laps with lap number, lap time and sector times * Automatically time laps and sectors with 0.001s precision. That's one thousandths of a second, folks. * Displays the fastest lap for each driver (in green) * Displays the fastest lap time of all drivers (in purple) * Displays the last lap time for each driver (in white) * Shows the time gap between adjacent drivers (to check if Driver 2 is closing in on Driver 1, for example) *currently only for manually timed laps * Records time immediately and accurately when your finger hits the screen (not when your finger is lifted, like other timers) * You can connect up to 4 KartTracker timers to automatically time four drivers at once! * Updates your KartTracker Timer hardware to the latest firmware. Manual Usage: 1. Press one of the big blue buttons to start timing (you can press all of them at once, if you like) 2. Press again when a driver has completed the lap (pro tip: use an easy visual reference point, far enough from your own position) 3. To stop recording, press Stop (when you've pressed Stop, the lap numbers will start at 1 again, but the previous lap times are retained) 4. To reset to zero, hold the Stop button for half a second 5. To cycle between 1, 2, 3, or 4 timers, press the "1...4" button 6. Optionally give each timer a name (only the initial letter will be shown) Automatic Usage: 1. Buy a KartTracker timer on our website. You won't regret it! 2. Pair the KartTracker timer with the app (the KartTracker timer needs within a few inches / cm of your mobile) 3. Install the KartTracker timer on your kart (somewhere on the floor pan, low to the ground) 4. Choose the number of sectors for the track you'll be driving on (this corresponds to the number of magnetic strips) 5. Set which sector is the first sector of the track (that usually depends on where the strips are and where the pit-lane exit is) 6. Stand next to the track (closer than 20m / 60ft or at a higher vantage point) and magically see lap and sectors times appear on the app! 7. Optionally enter the name of the driver to easily recognize each kart And don't worry. We had security in mind from the start. Nobody else can see your lap times. Unless you show them your screen and tell them how great KartTracker is, obviously. Feel free to tell you friends about us! Enjoy! Please send feedback and ideas to our contact email
SIM
Transform your smartphone or tablet into a customizable auxiliary display for racing, truck, flight, and farming simulations. Design your own dashboard with a variety of widgets and share your creations with a community of users. Unlock full potential with in-app purchases.
- Freely configurable auxiliary display
- Easy dashboard editor
- Large number of widgets
- Community designs download/share
- Virtual button box for PC
- Personalized layouts
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Get the most out of your favorite racing, truck, flight and farming simulations with the SIM Dashboard Companion App. • Use your smartphone or tablet as a freely configurable auxiliary display. • Create your own dash with the easy editor • Choose from a large number of widgets like analog displays, gear indicator, fuel usage, lap times, RPM LED Bars and many more • Register for the community to download and share Designs with others • Button Box (for games running on a PC only), use virtual buttons to execute keystrokes on your PC Supported games This app supports more than 40 games on PC, PS5, PS4 and Xbox like: • American Truck Simulator - ATS • Assetto Corsa (PC/PS4/PS5) • Assetto Corsa Competizione - ACC • Automobilista • BeamNG.drive • DiRT Rally 2.0 (PC) • DiRT 4 (PC) • DiRT Rally (PC) • Euro Truck Simulator 2 - ETS2 • Farming Simulator 22 (PC) - FS22 • Forza Horizon 5 • Forza Horizon 4 • Forza Motorsport • F1 24 • F1 23 • F1 22 • F1 2021 • F1 2020 • F1 2019 • F1 2018 • F1 2017 - 16 • F1 2015 - 10 (PC) • GRID Legends (PC) • Grid Autosport • GT7 • iRacing • LFS • Microsoft Flight Simulator 2020 - fs2020 • OMSI 2 • RaceRoom Racing Experience - R3E • rFactor • rFactor 2 • Richard Burns Rally - RBR • TrackMania 2 • The Bus • X-Plane 11 ... AND MORE! Check the app for the complete and up to date list of supported games! Most relevant features • Create your personal layouts • Move and scale your widgets • Change colors • Additional options in every widget • Use your own graphics • Select from cool templates Test the free version without a time limit and use one layout and up to three widgets per game. In order to achieve its full potential, you can remove the restrictions with in app purchases. The variety of widgets can differ per game Problems or questions? If you encounter problems or have additional questions, please dont give a negative rating. Check the help pages on www.stryder-it.de/simdashboard/help first. You can also contact me and I try to solve the problem. E-mail: info(at)stryder-it.de The Software is provided "as is," with all faults, defects, bugs, and errors. All trademarks and registered trademarks are the property of their respective owners. Names are used for identification purposes only.
Screenshots
Verdict
The clearest difference is in-app purchases: KartTracker CL at none against SIM's 24. KartTracker CL also leads on iOS requirement (10.0 vs 15.0). SIM's advantage is update cadence (every 2 weeks vs every 4 months). 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
Both are free to download. SIM sells 24 one-off in-app purchases. KartTracker CL asks for nothing beyond the download.
KartTracker CL ships an update every 4 months, SIM every 2 weeks. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.
| Parameter | KartTracker CL | SIM |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (445 ratings) — better |
| Positive reviews | — | 42.9% of reviews |
| Number of ratings | — | 445 — better |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 16 MB | 108 MB |
| Age rating | 4+ | 12+ |
| Developer | UVee | Christian Hausmann |
Bugs and requests
KartTracker CL
Not enough reviews yet to summarise bugs or requests.
SIM
Reported bugs
21 issues- Free version too limited (3 widgets)
- Can't get money back for accidental purchase
- Time slip on drag times not loading
- ACC on PS5 not working
- iOS app not updated for AC Evo
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- iOS 26 permission changes broke app
- Not working on Horizon 5 (Horizon 4 error)
- Pro version not usable on multiple iPhones
- Scaling options not displaying info properly on iOS
- Crashing on iPhone SE and iPhone 15
- Lost pro purchase after reset/update
- App crashes after buying pro
- App not opening after recent update
- App no longer opens after update
- Email invalid, can't use dashes
- ATS on iPad not working
- Max speed of trip/session won't convert to mph
- Can't log in with old account on new phone
- Stopped working after two months
- Ready-made widgets not loading
- Current iOS version has frustrating bugs
Requested features
8 requests- Add Assetto Corsa Rally support
- Working PSI gauge for Beamng drive
- Remote dashboard studio for iOS
- More engine info for Beamng
- Add Farming Simulator 25 to console
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- Grouping of layers for scaling and moving widgets
- Save groups as preset widgets
- Web interface to design dashboards
In-app purchases
KartTracker CL
No in-app purchases
SIM
- TDU Solar Crown$0.99
- F1 23 (Upgrade)$0.99
- F1 24 (Upgrade)$0.99
Show 21 moreShow fewer
- BeamNG.drive$1.49
- Le Mans Ultimate (PC)$1.99
- The Bus$2.99
- Forza Horizon 4 & 5$2.99
- Farming Simulator 25 (Upgrade)$2.99
- F1 2021 (Upgrade)$2.99
- WRC (EA SPORTS) (PC)$2.99
- GT Sport$2.99
- PC Button Box$3.79
- Forza Motorsport 2023 & 7$3.99
- GT7$3.99
- F1 25$4.49
- MS Flight Simul. 2024 & 2020$4.49
- Farming Simulator 22$4.49
- Farming Simulator 25$4.49
- F1 23$4.49
- F1 24$4.49
- Assetto Corsa$4.79
- iRacing$4.79
- ETS2 & ATS$5.99
- PRO$12.99
Questions
Is KartTracker CL free?
Is SIM free?
Do KartTracker CL or SIM have ads?
Which is updated more often, KartTracker CL or SIM?
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