# Catalyst Database vs Valdi Catalyst Market

The clearest difference is in-app purchases: Catalyst Database at none against Valdi Catalyst Market's 5. Catalyst Database also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.4). Valdi Catalyst Market's advantage is update cadence (every 2 months vs every 4 months). On price and ads there is nothing between them.

Both are free to download. Valdi Catalyst Market sells 5 in-app purchases, starting at $39.99 per month. Catalyst Database asks for nothing beyond the download.

Catalyst Database ships an update every 4 months, Valdi Catalyst Market every 2 months. The most recent releases landed on September 12, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Catalyst Database | Valdi Catalyst Market |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Freemium |
| Size | 22 MB | 74 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SoftwareStudio Sp. z o.o.](https://appshunter.io/developer/1459352818) | [Waldemar Konarski](https://appshunter.io/developer/1718085438) |

## What reviewers say

### Catalyst Database

[App page](https://appshunter.io/ios/app/catalyst-database/id1467731708)

**Features:** macOS Compatibility

**In-app purchases:** none


### Valdi Catalyst Market

[App page](https://appshunter.io/ios/app/valdi-catalyst-market/id6472909573)

This app provides quick and safe valuations for used catalytic converters based on their precious metal content. It uses a comprehensive catalog compiled since 2008, updated three times daily with market prices for palladium, rhodium, and platinum.

**Highlights:** Catalytic converter valuation, Precious metal content analysis (Pd, Rh, Pt), Real-time market price updates, Extensive catalog compiled since 2008, Safe buying and selling tool

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold - Monthly | $39.99 | per month |
| Platinum - Monthly | $59.99 | per month |
| Gold - Yearly | $199.99 | per year |
| Platinum - Yearly | $249.99 | per year |
| 20 Search Credits | $11.99 | one-time |


## Frequently asked questions

### Is Catalyst Database free?

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

### Is Valdi Catalyst Market free?

Valdi Catalyst Market is free to download, with in-app purchases available.

### Do Catalyst Database or Valdi Catalyst Market have ads?

Neither Catalyst Database nor Valdi Catalyst Market shows ads.

### Which is updated more often, Catalyst Database or Valdi Catalyst Market?

Catalyst Database ships an update every 4 months, and Valdi Catalyst Market every 2 months. Most recently, Catalyst Database was updated on September 12, 2026 and Valdi Catalyst Market on September 10, 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.*