# Engine Link vs Flash Cleaner Pro

The clearest difference is price: Flash Cleaner Pro at Free against Engine Link's $5.99. Flash Cleaner Pro also leads on update cadence (every 2 weeks vs every 2 months). Engine Link's advantage is iOS requirement (12.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Flash Cleaner Pro is free to download; Engine Link costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Engine Link ships an update every 2 months, Flash Cleaner Pro every 2 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Engine Link | Flash Cleaner Pro |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[2.9 (62 ratings)](https://appshunter.io/ios/app/engine-link-obd-ii-diagnosis/id591557194/reviews)** | — |
| Number of ratings | **62** | — |
| Positive reviews | 38.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 10 MB | 23 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [K SOLUTION LLC](https://appshunter.io/developer/289670447) | [虎 杨](https://appshunter.io/developer/6776171414) |

## What reviewers say

### Engine Link

[App page](https://appshunter.io/ios/app/engine-link-obd-ii-diagnosis/id591557194)

Transform your iPhone into a powerful vehicle diagnostics tool. Monitor real-time performance, read and clear fault codes, and customize your dashboard with detailed sensor data. Supports emission testing and offers a HUD mode for night driving.

**Highlights:** Real-time vehicle monitoring, Read and clear OBD fault codes, Customizable gauges and dashboards, MPG widget and fuel efficiency plotting, Heads up display (HUD) mode, Horsepower, torque, and acceleration metrics, Custom PID support

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Works as expected
- 👍 Flexible and customizable
- 💡 Supports custom PIDs
- 🚀 Reliable connection
- 👍 Good customer support

**What reviewers complain about**

- 🐛 Doesn't work with all OBD dongles
- 🐛 Compatibility issues with newer iOS versions
- 👎 Outdated and clunky interface
- 👎 Limited functionality for EVs
- 🐛 Connectivity problems

**Reported bugs**

- App crashes on connection
- Fails to read/clear error codes
- Inaccurate sensor readings
- Compatibility issues with certain OBD dongles

**Requested features**

- Add support for more vehicle types
- Improve user interface and customization options
- Add more PID support, especially for EVs
- Implement language localization
- Improve data logging and export capabilities


### Flash Cleaner Pro

[App page](https://appshunter.io/ios/app/flash-cleaner-pro/id6776581609)

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

**In-app purchases:** none


## Frequently asked questions

### Is Engine Link free?

Engine Link costs $5.99, with no in-app purchases.

### Is Flash Cleaner Pro free?

Flash Cleaner Pro is free to download, with no in-app purchases.

### Do Engine Link or Flash Cleaner Pro have ads?

Neither Engine Link nor Flash Cleaner Pro shows ads.

### Which is updated more often, Engine Link or Flash Cleaner Pro?

Engine Link ships an update every 2 months, and Flash Cleaner Pro every 2 weeks. Most recently, Engine Link was updated on October 29, 2026 and Flash Cleaner Pro on October 28, 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.*