Comparison

ROUSH Lap Timer vs RaceChrono Pro

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

Head to head
About

ROUSH Lap Timer

Record and analyze your vehicle's performance on the track. This app generates in-car video with data overlays and allows for detailed performance analysis to help improve your driving.

Highlights
  • Record vehicle performance
  • Analyze track data
  • Generate in-car video with data overlays
  • Measure performance impact
  • Integrate with Health Kit data
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The ROUSH LapTimer application, co-developed with the creator of Harry's LapTimer, let’s you push your vehicle to the limit while recording everything for later playback and evaluation. This high-precision tool will improve your driving ability by letting you see where you can go faster on any track. ROUSH’s LapTimer generates beautiful in-car video recordings with an overlay of vehicle data, ready to be presented on YouTube or other social media sites. Even without video, recorded data from your track day can be analyzed using pre-set views, making it easy to analyze and improve your driving performance. In case heart rates were recorded using Heath Kit, this data can be overlaid to recordings too. Using the ROUSH lap timer, you can change vehicle settings and accurately measure performance impact on your track times.

About

RaceChrono Pro

This app serves as a comprehensive lap timer and data logger for motorsports, enabling users to record and analyze performance. It offers video recording with data overlays and supports a wide range of external GPS and OBD-II devices for enhanced accuracy.

Highlights
  • Lap timing with sectors and optimal lap
  • Track library with over 2600 pre-made tracks
  • Data analysis with synchronized graphs and maps
  • Predictive lap timing
  • Video recording with data overlay
  • Support for external GPS and OBD-II devices
  • Unlimited session length
Features
Currently charting
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RaceChrono Pro is a versatile lap timer, data logging and data analysis app designed especially for use in motorsports, replacing your traditional lap timers and data loggers. The RaceChrono Pro app also enables you to record videos and overlay them with the logged data. RaceChrono apps have a strong following, currently over 100000 active users. If you look around at pits during your race or track day, chances are that you’ll see someone using RaceChrono. Even many professionals, such as factory test drivers and race driving instructors, are known to use this app! No matter whether you ride motorbikes, drive go-karts or cars, on closed circuit or special stage tracks – this is the motorsports app for you. RaceChrono Pro has following major features: • Lap timing with sectors and optimal lap • Track library of over 2600 pre-made race tracks • Custom user defined circuit and point-to-point tracks • Smoothly scrolling data analysis with synchronised graph, X/Y graph, map, video and comparison video • Predictive lap timing and time delta graph • Hardware accelerated video export with configurable data overlay • Multiple camera recording and picture-in-picture video export • Video recording using internal camera • Linking and synchronising video files from almost all action cameras • Support for external GPS receivers; Dragy Pro/DRG70/DRG70-C/Lite, RaceBox Mini/Mini S/Micro, Qstarz BL-818GT/BL-1000GT/LT-8000GT, Columbus P-9 Race, Dual XGPS 150/160, VBOX Sport, Garmin GLO • Support for OBD-II readers; OBDLink MX+ Bluetooth, OBDLink CX Bluetooth, Dragy OBD, Vgate vLinker FS, Vgate vLinker/iCar BLE, PLX Kiwi 3/4, Carista OBD2 Bluetooth, Tonwon BLE 1/2/Pro, Veepeak OBDCheck BLE, UniCarScan UCSI-2000, OBDLink MX Wi-Fi, generic Wi-Fi OBD-II • Support for Bluetooth LE heart rate monitors • Unlimited session length, good for 24 hour races • Session data export in .ODS (session summary for Excel), .NMEA, .VBO and .CSV formats

Screenshots

ROUSH Lap Timer4 screens
RaceChrono Pro4 screens

Verdict

The call

The clearest difference is review sentiment: RaceChrono Pro at 57% against ROUSH Lap Timer's 0%. RaceChrono Pro also leads on rating (4.7 vs 1.0) and price ($19.99 vs $27.99). ROUSH Lap Timer's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.6). On 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

ROUSH Lap Timer costs $27.99 and RaceChrono Pro $19.99 up front. RaceChrono Pro sells 3 one-off in-app purchases. ROUSH Lap Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RaceChrono Pro holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: RaceChrono Pro has 174 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of ROUSH Lap Timer's written reviews are positive against 57% of RaceChrono Pro's.

UpkeepUpdate frequency

ROUSH Lap Timer ships an update every 3 months, RaceChrono Pro monthly. The most recent releases landed on September 18, 2026 and October 12, 2026 respectively.

Scorecard9 real differences · 2 level
ROUSH Lap Timer versus RaceChrono Pro: the parameters behind the verdict, then further details
ParameterROUSH Lap TimerRaceChrono Pro
Price$27.99$19.99 — better
Rating1.0 (1 ratings)4.7 (174 ratings) — better
Positive reviews0.0% of reviews57.4% of reviews — better
Number of ratings1174 — better
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
Best chart rank—#15 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size71 MB43 MB
Age rating4+4+
DeveloperHarald SchlangmannRaceChrono Oy

Customer experience

ROUSH Lap Timer

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

RaceChrono Pro

All ratings174 ratings
Positive93.1%
Neutral2.9%
Negative4.0%
Written reviews141 reviews
Positive57.4%
Neutral12.1%
Negative30.5%

In-app purchases

None

ROUSH Lap Timer

No in-app purchases

3 purchases

RaceChrono Pro

One-time3
  • Reference session 3$0.99
  • Reference session 2$4.99
  • Reference session 1$8.99

Questions

Is ROUSH Lap Timer free?
ROUSH Lap Timer costs $27.99, with no in-app purchases.
Is RaceChrono Pro free?
RaceChrono Pro costs $19.99, and also offers in-app purchases.
Which has better reviews, ROUSH Lap Timer or RaceChrono Pro?
RaceChrono Pro is rated higher. ROUSH Lap Timer averages 1.0 out of 5 from 1 ratings, while RaceChrono Pro averages 4.7 from 174 ratings.
Do ROUSH Lap Timer or RaceChrono Pro have ads?
Neither ROUSH Lap Timer nor RaceChrono Pro shows ads.
Which is updated more often, ROUSH Lap Timer or RaceChrono Pro?
ROUSH Lap Timer ships an update every 3 months, and RaceChrono Pro monthly. Most recently, ROUSH Lap Timer was updated on September 18, 2026 and RaceChrono Pro on October 12, 2026.

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