Comparison

RaceChrono Pro vs Lap Legend

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

Head to head
About

RaceChrono Pro

Record and analyze performance on the track with this comprehensive motorsports app. It offers lap timing, video recording with data overlays, and extensive data analysis tools. Compatible with various external GPS and OBD-II devices for detailed insights.

Highlights
  • Lap timing with sectors and optimal lap
  • Track library with over 2600 pre-made tracks
  • Data analysis with synchronized graph, map, and video
  • Predictive lap timing and time delta graph
  • Hardware accelerated video export with data overlay
  • Multiple camera recording and picture-in-picture
  • Support for external GPS and OBD-II devices
Features
Currently charting
Read full description

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

About

Lap Legend

Record and analyze motorsports laps with live timing, data acquisition, and advanced analytics. Supports various racing disciplines and includes over 2000 track configurations. Integrates with OBD devices for high-performance vehicle data.

Highlights
  • Live lap timing
  • Data acquisition via OBD
  • Advanced data analysis
  • Video and data replay
  • 2000+ track configurations
  • Support for multiple racing types
  • Weather data with corrections
Read full description

Use your phone or tablet to record laps, autocross runs, 1/4 mile passes, and more! • Fast, Easy Setup - Get on Track in Seconds • Superior Data Acquisition + Deep OBD Data • GPS Lap Timing with Predictive & Target Times • Integrated Video+Data Recording and Export • Replay Data & Video of your Theoretical Best Lap • Advanced Analysis Tools Designed to Find You Time • Automatic & Manual Points of Interest (POI) Marking • Supports Road Course, Circle Track, Autocross, Rally, Drift, and Drag Racing • 2000+ Included Track Configurations • Custom Track Creation & Sharing • Integrated Weather Data & Density Altitude Calculations • Add Your Own Session Notes Lap Legend is fueled by a passion for motorsports, with the goal of giving all track drivers access to high-performance data acquisition, driving analysis, lap timing, and video. Enjoy! This app is intended only for sanctioned motorsports and track events. Always drive safely. Use at your own risk. Any telemetry or messaging features are not guaranteed, and must not be relied upon for critical or safety uses. Please see website or in-app information for details on compatible external hardware.

Screenshots

RaceChrono Pro4 screens
Lap Legend4 screens

Verdict

The call

The clearest difference is price: Lap Legend at Free against RaceChrono Pro's $19.99. Lap Legend also leads on review sentiment (100% vs 58%) and rating (5.0 vs 4.7). RaceChrono Pro's advantage is in-app purchases (none vs 1) and ratings volume (184 vs 5). On update cadence, ads, device support and iOS requirement 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

Lap Legend is free to download; RaceChrono Pro costs $19.99 up front. Lap Legend sells 1 one-off in-app purchase. RaceChrono Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Lap Legend holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: RaceChrono Pro has 184 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 58% of RaceChrono Pro's written reviews are positive against 100% of Lap Legend's.

UpkeepUpdate frequency

RaceChrono Pro ships an update monthly, Lap Legend every 3 weeks. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 4 level
RaceChrono Pro versus Lap Legend: the parameters behind the verdict, then further details
ParameterRaceChrono ProLap Legend
Price$19.99Free — better
Rating4.7 (184 ratings)5.0 (5 ratings) — better
Positive reviews57.6% of reviews100.0% of reviews — better
Number of ratings184 — better5
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#12 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.6 — better16
Further details — not scored
Size43 MB15 MB
Age rating4+4+
DeveloperRaceChrono OyDauntless Devices LLC

Customer experience

RaceChrono Pro

All ratings184 ratings
Positive92.9%
Neutral2.2%
Negative4.9%
Written reviews144 reviews
Positive57.6%
Neutral11.8%
Negative30.6%

Lap Legend

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RaceChrono Pro

No in-app purchases

1 purchases

Lap Legend

One-time1
  • 3rd Party OBD Device Support$5.99

Questions

Is RaceChrono Pro free?
RaceChrono Pro costs $19.99, with no in-app purchases.
Is Lap Legend free?
Lap Legend is free to download, with in-app purchases available.
Which has better reviews, RaceChrono Pro or Lap Legend?
Lap Legend is rated higher. RaceChrono Pro averages 4.7 out of 5 from 184 ratings, while Lap Legend averages 5.0 from 5 ratings.
Do RaceChrono Pro or Lap Legend have ads?
Neither RaceChrono Pro nor Lap Legend shows ads.
Which is updated more often, RaceChrono Pro or Lap Legend?
RaceChrono Pro ships an update monthly, and Lap Legend every 3 weeks. Most recently, RaceChrono Pro was updated on November 12, 2026 and Lap Legend on October 30, 2026.

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