# TDI Tuning vs 997 Chrono

The clearest difference is update cadence: 997 Chrono at every 3 weeks against TDI Tuning's every 3 months. 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.

TDI Tuning ships an update every 3 months, 997 Chrono every 3 weeks. The most recent releases landed on October 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | TDI Tuning | 997 Chrono |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/tdi-tuning/id1377233586/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 38.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 23 MB | 29 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TDI Tuning](https://appshunter.io/developer/1377233585) | [ia2o ltd](https://appshunter.io/developer/6772134692) |

## What reviewers say

### TDI Tuning

[App page](https://appshunter.io/ios/app/tdi-tuning/id1377233586)

Enhance your vehicle's power, torque, and economy directly from your driver's seat. This app connects to your TDI-Tuning Bluetooth system, allowing instant performance adjustments and access to a community of car enthusiasts for tips and support.

**Highlights:** Bluetooth system connection, Instant performance setting changes, Seven custom performance programs, Engine delay timer, Discreet mode, Revert to factory settings, Community access

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

**In-app purchases:** none


### 997 Chrono

[App page](https://appshunter.io/ios/app/997-chrono/id6772134690)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TDI Tuning free?

TDI Tuning is free to download, with no in-app purchases.

### Is 997 Chrono free?

997 Chrono is free to download, with no in-app purchases.

### Do TDI Tuning or 997 Chrono have ads?

Neither TDI Tuning nor 997 Chrono shows ads.

### Which is updated more often, TDI Tuning or 997 Chrono?

TDI Tuning ships an update every 3 months, and 997 Chrono every 3 weeks. Most recently, TDI Tuning was updated on October 5, 2026 and 997 Chrono on October 31, 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.*