Comparison

Secure Watermark vs Tutu Watermark

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Secure Watermark

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
Read full description

[Applicable scenarios] - Protect your ID card, bank card, driver's license and other ID photos to prevent unauthorized use. - Protect your photos, paintings, digital works to prevent unauthorized use. [Watermark type] The application supports three types of watermarks: rich text watermarks, image watermarks and handwritten signature watermarks, and supports full screen and single watermark functions. [Rich text watermark] - Supports multi-line text watermarks. - Customizable font color, background color, transparency, font style (bold, italic), size, etc. - Provides adjustment functions for alignment, line spacing, watermark spacing and rotation angle. [ID mode] - ID mode supports importing ID card front and back images, and automatically adjusts to A4 paper size to ensure that the printing effect is consistent with the actual object. - You can choose to display the ID card outline and support manual scaling of the image. - Can be exported as an image or PDF document, with an output resolution of 300 DPI A4 paper. [Image watermark] - Customized images can be inserted as watermarks. - Supports adjusting image size, transparency, watermark spacing and rotation angle. [Handwritten Signature Watermark] - Provides multiple pen stroke types such as fountain pen, water pen, etc. - Customizable stroke color and size. - Supports undo, redo functions and eraser. - Provides a convenient watermark management list.

About

Tutu Watermark

Features
Read full description

The functions of adding watermarks to images are as follows: -Custom watermark text -Definition of watermark color -Custom Transparency of Watermark Text -Custom watermark text angle -Custom watermark spacing -Custom watermark line height

Screenshots

Secure Watermark4 screens
Tutu Watermark4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard2 real differences · 7 level
Secure Watermark versus Tutu Watermark: the parameters behind the verdict, then further details
ParameterSecure WatermarkTutu Watermark
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.012.0 — better
Further details — not scored
Size2 MB30 MB
Age rating4+4+
Developer泽海 黄单 安

In-app purchases

None

Secure Watermark

No in-app purchases

1 purchases

Tutu Watermark

One-time1
  • Permanent card$3.99

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.

Other comparisons