# Diesel+ vs TuningBase

The clearest difference is iOS requirement: TuningBase at 15.1 against Diesel+'s 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Diesel+ ships an update weekly, TuningBase every 6 days. The most recent releases landed on September 16, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Diesel+ | TuningBase |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tuningbase/id6753321902/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | — | Free |
| Size | 16 MB | 32 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [TPE Europe GmbH](https://appshunter.io/developer/1561470951) | [Niko Holm](https://appshunter.io/developer/1843472333) |

## What reviewers say

### Diesel+

[App page](https://appshunter.io/ios/app/diesel-plus/id6474500884)

**In-app purchases:** none


### TuningBase

[App page](https://appshunter.io/ios/app/tuningbase/id6753321902)

Access a comprehensive mobile database for automotive professionals and tuners. Quickly find ECUs for any vehicle, view performance data, and look up error codes. Supports multiple languages and includes a performance calculator.

**Highlights:** ECU Search by vehicle details, Original and tuning performance data, Bosch Part Number Search, DTC Error Code lookup, HP to kW conversion calculator, Multilingual support

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

**In-app purchases:** none


## Frequently asked questions

### Is Diesel+ free?

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

### Is TuningBase free?

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

### Do Diesel+ or TuningBase have ads?

Neither Diesel+ nor TuningBase shows ads.

### Which is updated more often, Diesel+ or TuningBase?

Diesel+ ships an update weekly, and TuningBase every 6 days. Most recently, Diesel+ was updated on September 16, 2026 and TuningBase on September 12, 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.*