# Quad Notes vs Watermark Camera

The clearest difference is in-app purchases: Quad Notes at none against Watermark Camera's 1. Quad Notes also leads on device support (3 vs 1) and iOS requirement (15.8.3 vs 18.1). Watermark Camera's advantage is ads (none vs shown). On price and update cadence there is nothing between them.

Both are free to download. Watermark Camera sells 1 one-off in-app purchase. Quad Notes asks for nothing beyond the download.

Quad Notes ships an update every 2 weeks, Watermark Camera every 10 days. The most recent releases landed on October 10, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Quad Notes | Watermark Camera |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Size | 37 MB | 19 MB |
| Requires iOS | **15.8.3** | 18.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [荣 黄](https://appshunter.io/developer/1752611436) |

## 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


### Watermark Camera

[App page](https://appshunter.io/ios/app/watermark-camera-jianyin/id6758261821)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Membership | $2.99 | one-time |


## Frequently asked questions

### Is Quad Notes free?

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

### Is Watermark Camera free?

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

### Do Quad Notes or Watermark Camera have ads?

Quad Notes shows ads; Watermark Camera does not.

### Which is updated more often, Quad Notes or Watermark Camera?

Quad Notes ships an update every 2 weeks, and Watermark Camera every 10 days. Most recently, Quad Notes was updated on October 10, 2026 and Watermark Camera on October 30, 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.*