# ClassSync vs Big Tooth School

The clearest difference is update cadence: Big Tooth School at every 3 days against ClassSync's every 9 months. ClassSync's advantage is iOS requirement (13.0 vs 15.0). 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.

ClassSync ships an update every 9 months, Big Tooth School every 3 days. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | ClassSync | Big Tooth School |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 days** |
| Size | 30 MB | 36 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Classsync Technology](https://appshunter.io/developer/1750642602) | [Seng Yen Teh](https://appshunter.io/developer/6810597864) |

## What reviewers say

### ClassSync

[App page](https://appshunter.io/ios/app/classsync/id6504002003)

**Features:** macOS Compatibility

**In-app purchases:** none


### Big Tooth School

[App page](https://appshunter.io/ios/app/big-tooth-school/id6810597862)

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

**In-app purchases:** none


## Frequently asked questions

### Is ClassSync free?

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

### Is Big Tooth School free?

Big Tooth School is free to download, with no in-app purchases.

### Do ClassSync or Big Tooth School have ads?

Neither ClassSync nor Big Tooth School shows ads.

### Which is updated more often, ClassSync or Big Tooth School?

ClassSync ships an update every 9 months, and Big Tooth School every 3 days. Most recently, ClassSync was updated on October 5, 2026 and Big Tooth School on October 18, 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.*