# Valdi Catalyst Market vs DF Auto

The clearest difference is in-app purchases: DF Auto at none against Valdi Catalyst Market's 5. DF Auto also leads on device support (3 vs 1). Valdi Catalyst Market's advantage is ads (none vs shown). On price, update cadence and iOS requirement there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Valdi Catalyst Market | DF Auto |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Freemium | — |
| Size | 74 MB | 38 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Waldemar Konarski](https://appshunter.io/developer/1718085438) | [Md Minhazur Rahman](https://appshunter.io/developer/1863959342) |

## What reviewers say

### 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 |


### DF Auto

[App page](https://appshunter.io/ios/app/df-auto/id6756973542)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Valdi Catalyst Market free?

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

### Is DF Auto free?

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

### Do Valdi Catalyst Market or DF Auto have ads?

DF Auto shows ads; Valdi Catalyst Market does not.

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

Valdi Catalyst Market ships an update every 2 months, and DF Auto every 2 months. Most recently, Valdi Catalyst Market was updated on September 10, 2026 and DF Auto on September 18, 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.*