# Math Buddy vs Carry the One

The clearest difference is iOS requirement: Math Buddy at 15.1 against Carry the One's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Math Buddy sells 3 in-app purchases, starting at $9.99 per month and Carry the One sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Math Buddy ships an update every 3 weeks, Carry the One every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Math Buddy | Carry the One |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 121 MB | 23 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Math Buddy LLC](https://appshunter.io/developer/626230046) | [Lars Haneveld](https://appshunter.io/developer/6792379527) |

## What reviewers say

### Math Buddy

[App page](https://appshunter.io/ios/app/math-buddy-learn-and-practice/id6760890048)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual Monthly | $9.99 | per month |
| Individual Yearly | $79.99 | per year |
| Family Yearly - 3 children | $119.99 | per year |


### Carry the One

[App page](https://appshunter.io/ios/app/carry-the-one-mental-math/id6792379525)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Math Buddy free?

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

### Is Carry the One free?

Carry the One is free to download, with in-app purchases available.

### Do Math Buddy or Carry the One have ads?

Neither Math Buddy nor Carry the One shows ads.

### Which is updated more often, Math Buddy or Carry the One?

Math Buddy ships an update every 3 weeks, and Carry the One every 6 weeks. Most recently, Math Buddy was updated on October 24, 2026 and Carry the One on October 24, 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.*