# ZEN CAT vs Shocklight

The clearest difference is ads: ZEN CAT at none against Shocklight's shown. Shocklight's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ZEN CAT ships an update every 3 months, Shocklight every 4 months. The most recent releases landed on October 10, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ZEN CAT | Shocklight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 160 MB | 61 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Zen SA Industria Metalurgica](https://appshunter.io/developer/1458783498) | [Shocklight Comercio, Importacao e Exportacao de Partes de Pecas Automotivas Ltda](https://appshunter.io/developer/1460143852) |

## What reviewers say

### ZEN CAT

[App page](https://appshunter.io/ios/app/zen-cat/id1292627092)

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

**In-app purchases:** none


### Shocklight

[App page](https://appshunter.io/ios/app/shocklight-catalogo/id1460143853)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZEN CAT free?

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

### Is Shocklight free?

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

### Do ZEN CAT or Shocklight have ads?

Shocklight shows ads; ZEN CAT does not.

### Which is updated more often, ZEN CAT or Shocklight?

ZEN CAT ships an update every 3 months, and Shocklight every 4 months. Most recently, ZEN CAT was updated on October 10, 2026 and Shocklight on October 19, 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.*