# TDI Tuning vs TripCost

The clearest difference is review sentiment: TripCost at 100% against TDI Tuning's 39%. TripCost also leads on update cadence (weekly vs every 3 months). TDI Tuning's advantage is in-app purchases (none vs 2) and iOS requirement (15.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. TripCost sells 2 in-app purchases, starting at $0.99 per month. TDI Tuning asks for nothing beyond the download.

TDI Tuning ships an update every 3 months, TripCost weekly. The most recent releases landed on October 5, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TDI Tuning | TripCost |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 23 MB | 8 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TDI Tuning](https://appshunter.io/developer/1377233585) | [Reece Charlton](https://appshunter.io/developer/1849457522) |

## 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


### TripCost

[App page](https://appshunter.io/ios/app/tripcost/id6754656107)

Easily calculate the total fuel cost, cost per mile, and split expenses for your journeys. It helps you estimate MPG, compare trip expenses, and save calculations. The Pro version offers real-time UK fuel prices and unlimited journey history.

**Highlights:** Calculate fuel cost from MPG, price, and distance, Estimate MPG from cost, distance, and fuel price, Split journey costs among multiple people, Compare costs of different trips, Save and manage journey history, Real-time UK fuel prices (Pro), Export journey data to CSV (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TripCost Pro Monthly | $0.99 | per month |
| TripCost Pro Annual | $9.99 | per year |


## Frequently asked questions

### Is TDI Tuning free?

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

### Is TripCost free?

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

### Do TDI Tuning or TripCost have ads?

Neither TDI Tuning nor TripCost shows ads.

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

TDI Tuning ships an update every 3 months, and TripCost weekly. Most recently, TDI Tuning was updated on October 5, 2026 and TripCost 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.*