# Missing Numbers Minds vs PI Academy

The clearest difference is update cadence: PI Academy at every 6 weeks against Missing Numbers Minds's every 5 months. PI Academy also leads on iOS requirement (15.2 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Missing Numbers Minds sells 2 one-off in-app purchases and PI Academy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Missing Numbers Minds ships an update every 5 months, PI Academy every 6 weeks. The most recent releases landed on September 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Missing Numbers Minds | PI Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Size | 4 MB | 109 MB |
| Requires iOS | 26.1 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Juan Fullana](https://appshunter.io/developer/692107580) | [Performing Ideas SL](https://appshunter.io/developer/1605989704) |

## What reviewers say

### Missing Numbers Minds

[App page](https://appshunter.io/ios/app/missing-numbers-minds/id980949764)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation for maintenance. | $0.99 | one-time |
| Extra for develop and maintenance | $0.99 | one-time |


### PI Academy

[App page](https://appshunter.io/ios/app/pi-academy/id1605989702)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Powerful Presentations | $119.99 | one-time |


## Frequently asked questions

### Is Missing Numbers Minds free?

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

### Is PI Academy free?

PI Academy is free to download, with in-app purchases available.

### Do Missing Numbers Minds or PI Academy have ads?

Neither Missing Numbers Minds nor PI Academy shows ads.

### Which is updated more often, Missing Numbers Minds or PI Academy?

Missing Numbers Minds ships an update every 5 months, and PI Academy every 6 weeks. Most recently, Missing Numbers Minds was updated on September 27, 2026 and PI Academy on October 9, 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.*