# Math Gero vs Just Yesterday

The clearest difference is iOS requirement: Just Yesterday at 13.4 against Math Gero's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Math Gero sells 3 in-app purchases, starting at $2.99 per 7 days and Just Yesterday sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Math Gero | Just Yesterday |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 48 MB | 24 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Andre Harry](https://appshunter.io/developer/1787113883) | [JustYesterDay](https://appshunter.io/developer/1800408223) |

## What reviewers say

### Math Gero

[App page](https://appshunter.io/ios/app/math-gero/id6739801039)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $99.99 | per year |


### Just Yesterday

[App page](https://appshunter.io/ios/app/just-yesterday/id6742872205)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $5.99 | per month |
| Yearly Subscription | $24.99 | per year |


## Frequently asked questions

### Is Math Gero free?

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

### Is Just Yesterday free?

Just Yesterday is free to download, with in-app purchases available.

### Do Math Gero or Just Yesterday have ads?

Neither Math Gero nor Just Yesterday shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*