# Subtraction App vs Cardboard Cat

The clearest difference is in-app purchases: Cardboard Cat at none against Subtraction App's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Subtraction App sells 1 in-app purchase, starting at $1.99 per month. Cardboard Cat asks for nothing beyond the download.

Subtraction App ships an update every 2 weeks, Cardboard Cat every 8 days. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Subtraction App | Cardboard Cat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Size | 26 MB | 206 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Foodmenu.world Inc.](https://appshunter.io/developer/1438351063) | [Mahorobase Inc.](https://appshunter.io/developer/1623174645) |

## What reviewers say

### Subtraction App

[App page](https://appshunter.io/ios/app/subtraction-app/id1622934481)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |


### Cardboard Cat

[App page](https://appshunter.io/ios/app/cardboard-cat/id6474287801)

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

**In-app purchases:** none


## Frequently asked questions

### Is Subtraction App free?

Subtraction App is free to download, with in-app purchases available.

### Is Cardboard Cat free?

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

### Do Subtraction App or Cardboard Cat have ads?

Both Subtraction App and Cardboard Cat show ads.

### Which is updated more often, Subtraction App or Cardboard Cat?

Subtraction App ships an update every 2 weeks, and Cardboard Cat every 8 days. Most recently, Subtraction App was updated on November 12, 2026 and Cardboard Cat on November 8, 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.*