# FastID vs Secure Watermark

The clearest difference is update cadence: Secure Watermark at every 2 weeks against FastID's every 24 months. FastID's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

FastID ships an update every 24 months, Secure Watermark every 2 weeks. Both last shipped on June 1, 2026.

## The numbers

| Metric | FastID | Secure Watermark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/secure-watermark/id6504274596/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 46 MB | 2 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Changing Information Technology Inc.](https://appshunter.io/developer/329855504) | [泽海 黄](https://appshunter.io/developer/1069894245) |

## What reviewers say

### FastID

[App page](https://appshunter.io/ios/app/fastid/id1558782763)

Easily capture and edit ID photos for online services. Automatically detect, crop, and correct images, and add custom watermarks to protect your photos before sharing.

**Highlights:** Automatic ID detection and capture, Image correction and cropping, Customizable watermark text, Photo preview and editing, Offline usage, Share to other apps

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is FastID free?

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

### Is Secure Watermark free?

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

### Do FastID or Secure Watermark have ads?

Neither FastID nor Secure Watermark shows ads.

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

FastID ships an update every 24 months, and Secure Watermark every 2 weeks. Most recently, FastID was updated on June 1, 2026 and Secure Watermark on June 1, 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.*