# Tetrade Breda vs notaduo

The clearest difference is update cadence: notaduo at fortnightly against Tetrade Breda's every 9 months. notaduo also leads on device support (3 vs 1) and iOS requirement (12.4 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

Tetrade Breda ships an update every 9 months, notaduo fortnightly. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Tetrade Breda | notaduo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Size | 28 MB | 5 MB |
| Requires iOS | 17.0 | **12.4** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Office Improvers B.V.](https://appshunter.io/developer/1617085138) | [Jonathan Fritz](https://appshunter.io/developer/1286338029) |

## What reviewers say

### Tetrade Breda

[App page](https://appshunter.io/ios/app/tetrade-breda/id1617085136)

**Features:** macOS Compatibility

**In-app purchases:** none


### notaduo

[App page](https://appshunter.io/ios/app/notaduo/id1639505053)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tetrade Breda free?

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

### Is notaduo free?

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

### Do Tetrade Breda or notaduo have ads?

Neither Tetrade Breda nor notaduo shows ads.

### Which is updated more often, Tetrade Breda or notaduo?

Tetrade Breda ships an update every 9 months, and notaduo fortnightly. Most recently, Tetrade Breda was updated on October 9, 2026 and notaduo 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.*