# MAT+EF vs DREME Math Classroom Observer

The clearest difference is update cadence: MAT+EF at monthly against DREME Math Classroom Observer's every 4 months. MAT+EF also leads on iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MAT+EF ships an update monthly, DREME Math Classroom Observer every 4 months. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | MAT+EF | DREME Math Classroom Observer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Size | 235 MB | 26 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [University of California Riverside](https://appshunter.io/developer/888130363) | [Kelley Durkin](https://appshunter.io/developer/1645908110) |

## What reviewers say

### MAT+EF

[App page](https://appshunter.io/ios/app/mat-plus-ef/id1529766638)

**Features:** macOS Compatibility

**In-app purchases:** none


### DREME Math Classroom Observer

[App page](https://appshunter.io/ios/app/dreme-math-classroom-observer/id6443436386)

**In-app purchases:** none


## Frequently asked questions

### Is MAT+EF free?

MAT+EF is free to download, with no in-app purchases.

### Is DREME Math Classroom Observer free?

DREME Math Classroom Observer is free to download, with no in-app purchases.

### Do MAT+EF or DREME Math Classroom Observer have ads?

Neither MAT+EF nor DREME Math Classroom Observer shows ads.

### Which is updated more often, MAT+EF or DREME Math Classroom Observer?

MAT+EF ships an update monthly, and DREME Math Classroom Observer every 4 months. Most recently, MAT+EF was updated on October 11, 2026 and DREME Math Classroom Observer on October 14, 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.*