# RaceChrono Pro vs OnTrack

The clearest difference is price: OnTrack at Free against RaceChrono Pro's $19.99. RaceChrono Pro's advantage is rating (4.7 vs 3.3) and review sentiment (57% vs 37%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

OnTrack is free to download; RaceChrono Pro costs $19.99 up front. RaceChrono Pro sells 3 one-off in-app purchases and OnTrack sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

RaceChrono Pro holds the better App Store score, 4.7 against 3.3. Both are backed by a comparable volume of ratings — 184 and 57 respectively. Written reviews point the same way: 57% of RaceChrono Pro's written reviews are positive against 37% of OnTrack's.

RaceChrono Pro ships an update monthly, OnTrack every 4 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | RaceChrono Pro | OnTrack |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.7 (184 ratings)](https://appshunter.io/ios/app/racechrono-pro/id1129429340/reviews)** | [3.3 (57 ratings)](https://appshunter.io/ios/app/ontrack-obd2-scanner/id6446315145/reviews) |
| Number of ratings | **184** | 57 |
| Positive reviews | **57.4% of reviews** | 37.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | **#12** | — |
| Size | 43 MB | 22 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [RaceChrono Oy](https://appshunter.io/developer/1056547888) | [OnTrack Apps Limited](https://appshunter.io/developer/1647551624) |

## What reviewers say

### RaceChrono Pro

[App page](https://appshunter.io/ios/app/racechrono-pro/id1129429340)

**Currently charting:** #12 Top Paid · Sports (US App Store)

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:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reference session 3 | $0.99 | one-time |
| Reference session 2 | $4.99 | one-time |
| Reference session 1 | $8.99 | one-time |


### OnTrack

[App page](https://appshunter.io/ios/app/ontrack-obd2-scanner/id6446315145)

Monitor your car's real-time performance data on the racetrack with this CarPlay-enabled app. Set custom alerts for critical parameters like temperature to optimize your vehicle's performance and stay focused on the road.

**Highlights:** CarPlay integration, Real-time performance monitoring, Engine RPM, coolant temperature, oil pressure, Customizable temperature alerts, Instant notifications for threshold breaches, User-friendly display

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly - Best Value | $29.99 | per year |

**What reviewers like**

- 👍 Great CarPlay integration
- 💡 Useful for monitoring temps and info
- 🚀 Fast refresh rate
- 👍 Easy to read info at a glance
- 👍 Highly customizable

**What reviewers complain about**

- 🐛 Connection issues with various dongles
- 🐛 Lack of support/unresponsive developers
- 🐛 App crashes
- 🐛 Limited PIDs available
- 🐛 Boost pressure limit

**Reported bugs**

- Lost connections with Vgate Pro
- App crashes as soon as it connects to OBD2 reader since iOS 18
- Öltemperatur (Oil temperature) not read for VW/Audi vehicles
- Boost bar maxes at 1.5 bar / 22.3psi
- Not connecting to OBDLink CX

**Requested features**

- Add gauges instead of numbers for CarPlay
- Add more PIDs (e.g., exhaust gas temperature, transmission temp)
- Vehicle selector
- Support landscape mode
- Add custom PIDs for vehicle-specific measurements


## Frequently asked questions

### Is RaceChrono Pro free?

RaceChrono Pro costs $19.99, and also offers in-app purchases.

### Is OnTrack free?

OnTrack is free to download, with in-app purchases available.

### Which has better reviews, RaceChrono Pro or OnTrack?

RaceChrono Pro is rated higher. RaceChrono Pro averages 4.7 out of 5 from 184 ratings, while OnTrack averages 3.3 from 57 ratings.

### Do RaceChrono Pro or OnTrack have ads?

Neither RaceChrono Pro nor OnTrack shows ads.

### Which is updated more often, RaceChrono Pro or OnTrack?

RaceChrono Pro ships an update monthly, and OnTrack every 4 weeks. Most recently, RaceChrono Pro was updated on October 26, 2026 and OnTrack on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*