# Catalytic Converter Database vs ComiCollector

The clearest difference is update cadence: ComiCollector at every 5 days against Catalytic Converter Database's every 2 months. On price, ads, in-app purchases 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 and ComiCollector sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Catalytic Converter Database ships an update every 2 months, ComiCollector every 5 days. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Catalytic Converter Database | ComiCollector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (21 ratings)](https://appshunter.io/ios/app/catalytic-converter-database/id1534897941/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 53 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CONVERTERDATABASE LLC](https://appshunter.io/developer/1534897943) | [Vito Pilieci](https://appshunter.io/developer/1887552265) |

## What reviewers say

### 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 |


### ComiCollector

[App page](https://appshunter.io/ios/app/comicollector/id6761057444)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lite Monthly | $2.99 | per month |
| Plus monthly | $5.99 | per month |
| Pro Monthly | $11.99 | per month |


## Frequently asked questions

### Is Catalytic Converter Database free?

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

### Is ComiCollector free?

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

### Do Catalytic Converter Database or ComiCollector have ads?

Neither Catalytic Converter Database nor ComiCollector shows ads.

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

Catalytic Converter Database ships an update every 2 months, and ComiCollector every 5 days. Most recently, Catalytic Converter Database was updated on November 11, 2026 and ComiCollector on November 9, 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.*