# TDI Tuning vs D

The clearest difference is update cadence: D at every 3 weeks against TDI Tuning's every 3 months. D also leads on iOS requirement (10.0 vs 15.6). TDI Tuning's advantage is review sentiment (39% vs 18%). On price, ads, in-app purchases and monetization model 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, D every 3 weeks. The most recent releases landed on June 9, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | TDI Tuning | D |
| --- | --- | --- |
| 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** | 18.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 23 MB | 50 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TDI Tuning](https://appshunter.io/developer/1377233585) | [Global Telemetrics Limited](https://appshunter.io/developer/631363823) |

## 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


### D

[App page](https://appshunter.io/ios/app/d-id/id1479207307)

Enhance your vehicle's security with AI-powered verification. The app uses your car's systems, tracker, and phone sensors to confirm you're the driver. If unauthorized use is detected, it initiates theft recovery protocols.

**Highlights:** AI-powered driver verification, Vehicle tracker integration, Phone sensor utilization, Theft recovery protocols, Peace of mind security, Simple setup process

**In-app purchases:** none


## Frequently asked questions

### Is TDI Tuning free?

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

### Is D free?

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

### Do TDI Tuning or D have ads?

Neither TDI Tuning nor D shows ads.

### Which is updated more often, TDI Tuning or D?

TDI Tuning ships an update every 3 months, and D every 3 weeks. Most recently, TDI Tuning was updated on June 9, 2026 and D on June 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*