# Tunit performance vs RacingLine PDM

The clearest difference is update cadence: Tunit performance at every 3 days against RacingLine PDM's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tunit performance ships an update every 3 days, RacingLine PDM every 5 weeks. The most recent releases landed on September 9, 2026 and July 22, 2026 respectively.

## The numbers

| Metric | Tunit performance | RacingLine PDM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/racingline-pdm/id6503079844/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 weeks |
| Monetization | — | Free |
| Size | 59 MB | 141 MB |
| Requires iOS | **11.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tachos LLC](https://appshunter.io/developer/723695073) | [Racing Line Limited](https://appshunter.io/developer/1724045169) |

## What reviewers say

### Tunit performance

[App page](https://appshunter.io/ios/app/tunit-performance/id1496764087)

**In-app purchases:** none


### RacingLine PDM

[App page](https://appshunter.io/ios/app/racingline-pdm/id6503079844)

Manage, tune, and diagnose your VAG Group vehicle with this app. It offers Bluetooth connectivity for seamless ECU access and supports a wide range of Volkswagen and Audi Group cars. Regular updates ensure new features and compatibility.

**Highlights:** Vehicle management, ECU tuning, Diagnostics, Bluetooth connectivity, VAG Group vehicle support, Regular updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tunit performance free?

Tunit performance is free to download, with no in-app purchases.

### Is RacingLine PDM free?

RacingLine PDM is free to download, with no in-app purchases.

### Do Tunit performance or RacingLine PDM have ads?

Neither Tunit performance nor RacingLine PDM shows ads.

### Which is updated more often, Tunit performance or RacingLine PDM?

Tunit performance ships an update every 3 days, and RacingLine PDM every 5 weeks. Most recently, Tunit performance was updated on September 9, 2026 and RacingLine PDM on July 22, 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.*