# Quadam Teacher vs BbigTimer

The clearest difference is in-app purchases: Quadam Teacher at none against BbigTimer's 1. Quadam Teacher also leads on ads (none vs shown) and iOS requirement (9.0 vs 13.0). BbigTimer's advantage is device support (3 vs 1). On price and update cadence there is nothing between them.

Both are free to download. BbigTimer sells 1 one-off in-app purchase. Quadam Teacher asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 26, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Quadam Teacher | BbigTimer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Size | 32 MB | 5 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Quadam Institute S.L.](https://appshunter.io/developer/953160144) | [Seongmin Yim](https://appshunter.io/developer/1529542974) |

## What reviewers say

### Quadam Teacher

[App page](https://appshunter.io/ios/app/quadam-teacher/id953160145)

**In-app purchases:** none


### BbigTimer

[App page](https://appshunter.io/ios/app/bbigtimer/id1577759185)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NO Ads in BbigTimer | $0.99 | one-time |


## Frequently asked questions

### Is Quadam Teacher free?

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

### Is BbigTimer free?

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

### Do Quadam Teacher or BbigTimer have ads?

BbigTimer shows ads; Quadam Teacher does not.

### Which is updated more often, Quadam Teacher or BbigTimer?

Quadam Teacher ships an update every 5 weeks, and BbigTimer every 5 weeks. Most recently, Quadam Teacher was updated on October 26, 2026 and BbigTimer on October 15, 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.*