# Cardinality vs Merge Mech

The clearest difference is in-app purchases: Cardinality at none against Merge Mech's 3. Cardinality also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Merge Mech sells 3 one-off in-app purchases. Cardinality asks for nothing beyond the download.

## The numbers

| Metric | Cardinality | Merge Mech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cardinality-infinite-decks/id6791798541/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Daily |
| Monetization | Free | — |
| Size | 115 MB | 30 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Jack Chen](https://appshunter.io/developer/1833117269) | [Thanh Chung Phung Trieu](https://appshunter.io/developer/6790835825) |

## What reviewers say

### Cardinality

[App page](https://appshunter.io/ios/app/cardinality-infinite-decks/id6791798541)

This deckbuilder roguelite fuses cards with AI to create unique abilities. Merge cards to defeat enemies, explore a 50-level campaign, and unlock new decks with signature powers. Discover powerful builds in turn-based combat.

**Highlights:** AI-powered card fusion system, 60 unique base cards, 50-level campaign, Creature Compendium, 7 distinct starting decks, Turn-based card combat

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

**In-app purchases:** none


### Merge Mech

[App page](https://appshunter.io/ios/app/merge-mech-robot-evolution/id6813746822)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Gems | $0.99 | one-time |
| 40 Gems | $2.99 | one-time |
| 120 Gems | $6.99 | one-time |


## Frequently asked questions

### Is Cardinality free?

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

### Is Merge Mech free?

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

### Do Cardinality or Merge Mech have ads?

Merge Mech shows ads; Cardinality does not.

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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.*