# Chip tuning vs Catalytic Converter Database

The clearest difference is rating: Chip tuning at 5.0 against Catalytic Converter Database's 3.1. Chip tuning also leads on in-app purchases (none vs 2) and iOS requirement (8.0 vs 15.1). Catalytic Converter Database's advantage is update cadence (every 2 months vs every 36 months) and ratings volume (20 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Catalytic Converter Database sells 2 in-app purchases, starting at $24.99 per month. Chip tuning asks for nothing beyond the download.

Chip tuning holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Catalytic Converter Database has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 38% of Chip tuning's written reviews are positive against 50% of Catalytic Converter Database's, so the app with the better star average is not the one people write more warmly about.

Chip tuning ships an update every 36 months, Catalytic Converter Database every 2 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Chip tuning | Catalytic Converter Database |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chip-tuning/id423382944/reviews)** | [3.1 (20 ratings)](https://appshunter.io/ios/app/catalytic-converter-database/id1534897941/reviews) |
| Number of ratings | 1 | **20** |
| Positive reviews | 37.5% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 30 MB | 24 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AVD TURBO SRL](https://appshunter.io/developer/480602861) | [CONVERTERDATABASE LLC](https://appshunter.io/developer/1534897943) |

## 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


### Catalytic Converter Database

[App page](https://appshunter.io/ios/app/catalytic-converter-database/id1534897941)

Access a comprehensive database of catalytic converters with real-time pricing based on XRF values. Browse by manufacturer or code, view high-quality images, and stay updated with daily additions and market rate changes.

**Highlights:** Real-time pricing updated every 15 minutes, Daily additions of new converters, Advanced search by serial number or code, Browse by manufacturer and category, Multiple high-quality product images, Smooth animated image carousels

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Converter Database Monthly | $24.99 | per month |
| Converter Database Yearly | $249.99 | per year |


## Frequently asked questions

### Is Chip tuning free?

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

### Is Catalytic Converter Database free?

Catalytic Converter Database is free to download, with in-app purchases available.

### Which has better reviews, Chip tuning or Catalytic Converter Database?

Chip tuning is rated higher. Chip tuning averages 5.0 out of 5 from 1 ratings, while Catalytic Converter Database averages 3.1 from 20 ratings.

### Do Chip tuning or Catalytic Converter Database have ads?

Neither Chip tuning nor Catalytic Converter Database shows ads.

### Which is updated more often, Chip tuning or Catalytic Converter Database?

Chip tuning ships an update every 36 months, and Catalytic Converter Database every 2 months. Most recently, Chip tuning was updated on October 14, 2026 and Catalytic Converter Database on October 15, 2026.

---

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