# Catalytic Converter Guide vs Quade

The clearest difference is rating: Quade at 5.0 against Catalytic Converter Guide's 3.6. Quade also leads on review sentiment (100% vs 60%) and in-app purchases (none vs 2). Catalytic Converter Guide's advantage is ads (none vs shown) and iOS requirement (12.1 vs 15.5). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Catalytic Converter Guide sells 2 in-app purchases, starting at $19.99 per month. Quade asks for nothing beyond the download.

Quade holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 14 and 7 respectively. Written reviews point the same way: 60% of Catalytic Converter Guide's written reviews are positive against 100% of Quade's.

Catalytic Converter Guide ships an update every 3 days, Quade every 4 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Catalytic Converter Guide | Quade |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (14 ratings)](https://appshunter.io/ios/app/catalytic-converter-guide/id1581315898/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/quade/id6748236769/reviews)** |
| Number of ratings | **14** | 7 |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 4 days |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 60 MB | 38 MB |
| Requires iOS | **12.1** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Colin Richardson](https://appshunter.io/developer/1751712265) | [Quade Technologies Inc.](https://appshunter.io/developer/1824711600) |

## What reviewers say

### Catalytic Converter Guide

[App page](https://appshunter.io/ios/app/catalytic-converter-guide/id1581315898)

Access a comprehensive database of over 10,000 catalytic converter codes, complete with current market prices and images. Search by serial number or browse by manufacturer to find detailed information and maximize your scrap value.

**Highlights:** Search by serial number, Browse by car manufacturer, View converter details (picture, make, price), Identify most expensive converters, Regularly updated data, Calculate scrap value

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $19.99 | per month |
| Yearly Subscription at $149.99 | $149.99 | per year |


### Quade

[App page](https://appshunter.io/ios/app/quade/id6748236769)

Discover and share inspiring quotes from iconic books. Organize your favorite literary passages into custom collections and receive a daily dose of motivation. This app is designed for those who appreciate the power of words.

**Highlights:** Discover quotes from popular books, Share favorite quotes, Search by author, title, or user, Create custom book collections, Receive daily quotes, Organize literary passages

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

**In-app purchases:** none


## Frequently asked questions

### Is Catalytic Converter Guide free?

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

### Is Quade free?

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

### Which has better reviews, Catalytic Converter Guide or Quade?

Quade is rated higher. Catalytic Converter Guide averages 3.6 out of 5 from 14 ratings, while Quade averages 5.0 from 7 ratings.

### Do Catalytic Converter Guide or Quade have ads?

Quade shows ads; Catalytic Converter Guide does not.

### Which is updated more often, Catalytic Converter Guide or Quade?

Catalytic Converter Guide ships an update every 3 days, and Quade every 4 days. Most recently, Catalytic Converter Guide was updated on October 24, 2026 and Quade on October 30, 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.*