# FMSSEdu vs Oyster | Middle School Math

The clearest difference is in-app purchases: FMSSEdu at none against Oyster | Middle School Math's 6. FMSSEdu also leads on iOS requirement (15.0 vs 17.2). Oyster | Middle School Math's advantage is update cadence (fortnightly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Oyster | Middle School Math sells 5 in-app purchases, starting at $19.99 per month. FMSSEdu asks for nothing beyond the download.

FMSSEdu ships an update every 2 months, Oyster | Middle School Math fortnightly. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | FMSSEdu | Oyster | Middle School Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 107 MB | 70 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [FMSS Bilisim](https://appshunter.io/developer/1453389943) | [Bulvar.co Limited](https://appshunter.io/developer/6799644570) |

## What reviewers say

### FMSSEdu

[App page](https://appshunter.io/ios/app/fmssedu/id6760388346)

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

**In-app purchases:** none


### Oyster | Middle School Math

[App page](https://appshunter.io/ios/app/oyster-middle-school-math/id6799644568)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oyster Premium (Yearly) | $19.99 | per month |
| Premium Monthly Full Math Lessons | $19.99 | per month |
| Oyster Premium (Monthly) | $19.99 | per month |
| Oyster Premium (Yearly) | $129.00 | per year |
| Premium Yearly Full Math Lessons | $129.99 | per year |


## Frequently asked questions

### Is FMSSEdu free?

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

### Is Oyster | Middle School Math free?

Oyster | Middle School Math is free to download, with in-app purchases available.

### Do FMSSEdu or Oyster | Middle School Math have ads?

Neither FMSSEdu nor Oyster | Middle School Math shows ads.

### Which is updated more often, FMSSEdu or Oyster | Middle School Math?

FMSSEdu ships an update every 2 months, and Oyster | Middle School Math fortnightly. Most recently, FMSSEdu was updated on October 10, 2026 and Oyster | Middle School Math 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.*