# OBDLink vs MPG Tracker

The clearest difference is in-app purchases: MPG Tracker at none against OBDLink's 10. OBDLink's advantage is rating (4.8 vs 4.3) and update cadence (every 2 months vs every 40 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OBDLink sells 10 one-off in-app purchases. MPG Tracker asks for nothing beyond the download.

OBDLink holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: OBDLink has 13K ratings behind it against 3, so its average is the more settled of the two.

OBDLink ships an update every 2 months, MPG Tracker every 40 months. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | OBDLink | MPG Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13K ratings)](https://appshunter.io/ios/app/obdlink/id879636351/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/mpg-tracker-gas-mileage/id1502846940/reviews) |
| Number of ratings | **13K** | 3 |
| Positive reviews | 61.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 40 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 65 MB | 13 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [OBD Solutions LLC](https://appshunter.io/developer/879636354) | [Avocado Toast Co.](https://appshunter.io/developer/1254193792) |

## What reviewers say

### OBDLink

[App page](https://appshunter.io/ios/app/obdlink/id879636351)

Transform your phone into a powerful car diagnostic tool. Read and clear trouble codes, monitor real-time engine data, and track fuel economy. Generate detailed reports for easy sharing and analysis.

**Highlights:** Read and clear diagnostic trouble codes, Display real-time vehicle data, Customizable dashboards, Estimate fuel economy, Log data to CSV, GPS tracking of vehicle parameters, Full diagnostic reports

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ford 2016 Enhanced Diagnostics | $14.99 | one-time |
| Toyota 2007 Enhanced | $14.99 | one-time |
| Toyota 2008 Enhanced | $14.99 | one-time |
| Ford 2018 Enhanced Diagnostics | $14.99 | one-time |
| Ford 2022 Enhanced | $14.99 | one-time |
| Ford 2023 Enhanced | $14.99 | one-time |
| Ford 2015 Enhanced Diagnostics | $14.99 | one-time |
| Ford 2024 Enhanced | $14.99 | one-time |
| Ford 2017 Enhanced Diagnostics | $14.99 | one-time |
| Toyota 2011 Enhanced | $14.99 | one-time |

**What reviewers like**

- 🚀 Fast and responsive
- 👍 Customizable dashboard
- 📊 Comprehensive diagnostics
- 💰 Good value for money
- 🔧 Helpful for DIY repairs

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔌 Unreliable Bluetooth connection
- 🤔 Limited support for newer vehicles
- 📱 No CarPlay/Android Auto support
- 🔍 Difficult to navigate/configure

**Reported bugs**

- App freezes or disconnects randomly
- Trouble clearing error codes
- Inconsistent data readings
- Issues with firmware updates

**Requested features**

- Add CarPlay/Android Auto support
- Improve Bluetooth/WiFi stability
- Expand vehicle brand coverage
- Enhance user interface and customization
- Provide more detailed diagnostic information


### MPG Tracker

[App page](https://appshunter.io/ios/app/mpg-tracker-gas-mileage/id1502846940)

Easily calculate and monitor your vehicle's fuel efficiency. Log your fill-ups to keep a detailed record of your gas mileage over time.

**Highlights:** Calculate gas mileage, Track fuel efficiency, Log fill-ups, Vehicle gas mileage record

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

**In-app purchases:** none


## Frequently asked questions

### Is OBDLink free?

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

### Is MPG Tracker free?

MPG Tracker is free to download, with no in-app purchases.

### Which has better reviews, OBDLink or MPG Tracker?

OBDLink is rated higher. OBDLink averages 4.8 out of 5 from 13K ratings, while MPG Tracker averages 4.3 from 3 ratings.

### Do OBDLink or MPG Tracker have ads?

Neither OBDLink nor MPG Tracker shows ads.

### Which is updated more often, OBDLink or MPG Tracker?

OBDLink ships an update every 2 months, and MPG Tracker every 40 months. Most recently, OBDLink was updated on November 9, 2026 and MPG Tracker on November 3, 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.*