# Stack & Math vs Circuit Break

The clearest difference is in-app purchases: Circuit Break at none against Stack & Math's 1. Circuit Break also leads on ads (none vs shown) and update cadence (every 4 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Stack & Math sells 1 one-off in-app purchase. Circuit Break asks for nothing beyond the download.

Stack & Math ships an update every 3 weeks, Circuit Break every 4 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Stack & Math | Circuit Break |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 24 MB | 49 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Giuseppe Pignataro](https://appshunter.io/developer/363279853) | [Gareth DeWalt](https://appshunter.io/developer/1896493430) |

## What reviewers say

### Stack & Math

[App page](https://appshunter.io/ios/app/stack-and-math-number-puzzle/id6761229753)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


### Circuit Break

[App page](https://appshunter.io/ios/app/circuit-break/id6767619048)

**In-app purchases:** none


## Frequently asked questions

### Is Stack & Math free?

Stack & Math is free to download, with in-app purchases available.

### Is Circuit Break free?

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

### Do Stack & Math or Circuit Break have ads?

Stack & Math shows ads; Circuit Break does not.

### Which is updated more often, Stack & Math or Circuit Break?

Stack & Math ships an update every 3 weeks, and Circuit Break every 4 days. Most recently, Stack & Math was updated on October 31, 2026 and Circuit Break on October 31, 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.*