# Secure Watermark vs Tutu Watermark

The clearest difference is in-app purchases: Secure Watermark at none against Tutu Watermark's 1. Tutu Watermark's advantage is iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

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

Secure Watermark ships an update every 2 weeks, Tutu Watermark every 3 weeks. The most recent releases landed on June 1, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Secure Watermark | Tutu Watermark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/secure-watermark/id6504274596/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free | — |
| Size | 2 MB | 30 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [泽海 黄](https://appshunter.io/developer/1069894245) | [单 安](https://appshunter.io/developer/1703734519) |

## What reviewers say

### Secure Watermark

[App page](https://appshunter.io/ios/app/secure-watermark/id6504274596)

Easily protect your sensitive documents and digital creations from unauthorized use. Add custom text, image, or handwritten signature watermarks to photos, IDs, and artwork. Offers advanced customization for text and image placement, with ID mode for seamless document protection.

**Highlights:** Rich text watermarks with full customization, Image watermarks with adjustable transparency, Handwritten signature watermarks, ID mode for secure document protection, Export as image or PDF at 300 DPI, Watermark management list

**In-app purchases:** none


### Tutu Watermark

[App page](https://appshunter.io/ios/app/tutu-watermark/id6711340833)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanent card | $3.99 | one-time |


## Frequently asked questions

### Is Secure Watermark free?

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

### Is Tutu Watermark free?

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

### Do Secure Watermark or Tutu Watermark have ads?

Neither Secure Watermark nor Tutu Watermark shows ads.

### Which is updated more often, Secure Watermark or Tutu Watermark?

Secure Watermark ships an update every 2 weeks, and Tutu Watermark every 3 weeks. Most recently, Secure Watermark was updated on June 1, 2026 and Tutu Watermark on September 11, 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.*