# Chip tuning vs OBD2 Codes | Repair Guide

The clearest difference is in-app purchases: Chip tuning at none against OBD2 Codes | Repair Guide's 1. Chip tuning also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). OBD2 Codes | Repair Guide's advantage is update cadence (fortnightly vs every 36 months). On price and device support there is nothing between them.

Both are free to download. OBD2 Codes | Repair Guide sells 1 one-off in-app purchase. Chip tuning asks for nothing beyond the download.

Chip tuning ships an update every 36 months, OBD2 Codes | Repair Guide fortnightly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Chip tuning | OBD2 Codes | Repair Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chip-tuning/id423382944/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 36 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 30 MB | 65 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AVD TURBO SRL](https://appshunter.io/developer/480602861) | [sultan hamdi](https://appshunter.io/developer/6799153451) |

## What reviewers say

### Chip tuning

[App page](https://appshunter.io/ios/app/chip-tuning/id423382944)

Access a database of car models to find specific power increases and pricing for optimized software. Features include a comprehensive database, an FAQ section, contact information, and a news feed. This application is available for free.

**Highlights:** Chip tuning database, Power increase per model, Optimized software pricing, FAQ section, Contact options, News section

**Features:** macOS Compatibility

**In-app purchases:** none


### OBD2 Codes | Repair Guide

[App page](https://appshunter.io/ios/app/obd2-codes-repair-guide/id6804091355)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $6.99 | one-time |


## Frequently asked questions

### Is Chip tuning free?

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

### Is OBD2 Codes | Repair Guide free?

OBD2 Codes | Repair Guide is free to download, with in-app purchases available.

### Do Chip tuning or OBD2 Codes | Repair Guide have ads?

OBD2 Codes | Repair Guide shows ads; Chip tuning does not.

### Which is updated more often, Chip tuning or OBD2 Codes | Repair Guide?

Chip tuning ships an update every 36 months, and OBD2 Codes | Repair Guide fortnightly. Most recently, Chip tuning was updated on October 14, 2026 and OBD2 Codes | Repair Guide on October 11, 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.*