# Quad Notes vs KeepQR

The clearest difference is in-app purchases: Quad Notes at none against KeepQR's 2. Quad Notes also leads on iOS requirement (15.8.3 vs 17.6). KeepQR's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. KeepQR sells 2 in-app purchases, starting at $0.99 per month. Quad Notes asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 23, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Quad Notes | KeepQR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 37 MB | 9 MB |
| Requires iOS | **15.8.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Andrew Robinson](https://appshunter.io/developer/389951880) |

## What reviewers say

### Quad Notes

[App page](https://appshunter.io/ios/app/quad-notes/id6741947436)

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

**In-app purchases:** none


### KeepQR

[App page](https://appshunter.io/ios/app/keepqr/id6743605720)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KeepQR Pro (1 Month) | $0.99 | per month |
| KeepQR Pro (1 Year) | $8.99 | per year |


## Frequently asked questions

### Is Quad Notes free?

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

### Is KeepQR free?

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

### Do Quad Notes or KeepQR have ads?

Quad Notes shows ads; KeepQR does not.

### Which is updated more often, Quad Notes or KeepQR?

Quad Notes ships an update every 2 weeks, and KeepQR every 2 weeks. Most recently, Quad Notes was updated on September 23, 2026 and KeepQR on October 5, 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.*