# Subtraction App vs Boost Minds

The clearest difference is update cadence: Boost Minds at every 5 days against Subtraction App's every 2 weeks. On price, ads, in-app purchases 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 and Boost Minds sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Subtraction App ships an update every 2 weeks, Boost Minds every 5 days. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Subtraction App | Boost Minds |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Size | 26 MB | 26 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) | [OKAN CULFA](https://appshunter.io/developer/1862288945) |

## 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 |


### Boost Minds

[App page](https://appshunter.io/ios/app/boost-minds/id6756682868)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $0.99 | one-time |
| Legendary Pack | $1.99 | one-time |
| Legend Pack | $2.99 | one-time |


## Frequently asked questions

### Is Subtraction App free?

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

### Is Boost Minds free?

Boost Minds is free to download, with in-app purchases available.

### Do Subtraction App or Boost Minds have ads?

Both Subtraction App and Boost Minds show ads.

### Which is updated more often, Subtraction App or Boost Minds?

Subtraction App ships an update every 2 weeks, and Boost Minds every 5 days. Most recently, Subtraction App was updated on October 11, 2026 and Boost Minds on October 7, 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.*