# Circuit Tools vs OnTrack

The clearest difference is rating: Circuit Tools at 4.5 against OnTrack's 3.3. Circuit Tools also leads on in-app purchases (none vs 2) and iOS requirement (10.0 vs 18.6). OnTrack's advantage is review sentiment (37% vs 0%) and update cadence (every 4 weeks vs every 5 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. OnTrack sells 2 in-app purchases, starting at $3.99 per month. Circuit Tools asks for nothing beyond the download.

Circuit Tools holds the better App Store score, 4.5 against 3.3. Both are backed by a comparable volume of ratings — 30 and 55 respectively. Written reviews complicate that: 0% of Circuit Tools's written reviews are positive against 37% of OnTrack's, so the app with the better star average is not the one people write more warmly about.

Circuit Tools ships an update every 5 months, OnTrack every 4 weeks. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Circuit Tools | OnTrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (30 ratings)](https://appshunter.io/ios/app/circuit-tools/id1105839014/reviews)** | [3.3 (55 ratings)](https://appshunter.io/ios/app/ontrack-obd2-scanner/id6446315145/reviews) |
| Number of ratings | 30 | **55** |
| Positive reviews | 0.0% of reviews | **37.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 204 MB | 22 MB |
| Requires iOS | **10.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Racelogic](https://appshunter.io/developer/608904500) | [OnTrack Apps Limited](https://appshunter.io/developer/1647551624) |

## What reviewers say

### Circuit Tools

[App page](https://appshunter.io/ios/app/circuit-tools/id1105839014)

This app helps racing drivers analyze lap times and improve performance. It works with VBOX video and data loggers, offering simplified analysis tools for drivers without engineering expertise. Data can also be loaded via Dropbox.

**Highlights:** Lap time analysis, Performance improvement tools, VBOX Video HD2 integration, Data logger analysis, Dropbox data loading, Simplified analysis interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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 Circuit Tools free?

Circuit Tools is free to download, with no in-app purchases.

### Is OnTrack free?

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

### Which has better reviews, Circuit Tools or OnTrack?

Circuit Tools is rated higher. Circuit Tools averages 4.5 out of 5 from 30 ratings, while OnTrack averages 3.3 from 55 ratings.

### Do Circuit Tools or OnTrack have ads?

Neither Circuit Tools nor OnTrack shows ads.

### Which is updated more often, Circuit Tools or OnTrack?

Circuit Tools ships an update every 5 months, and OnTrack every 4 weeks. Most recently, Circuit Tools was updated on October 4, 2026 and OnTrack on October 11, 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.*