Comparison

Secure Watermark vs IDCard Go

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

Secure Watermark adds a lasting, visible watermark to ID documents and photos — entirely on your device. No network required, no account, nothing uploaded. Protection of privacy is the whole point: your images never leave your iPhone or iPad. THREE MODES ID Document Watermark Photograph both sides of a document and let the app handle the framing. Secure Watermark finds the card edge on device, corrects the perspective and crops it automatically, then lays the front and back out on a single A4 sheet ready for a full-page watermark. If the edges cannot be found, the shot is cropped to the on-screen guide instead. You can import existing pictures instead of shooting. Works with ID Card, Driver License, Social Security Card and Bank Card, and the finished sheet exports as an image or a PDF. Full-Screen Watermark Import several photos at once and cover each one with a watermark that spans the whole frame. Built for the moment a picture has to leave your hands: reduce exposure risk before it travels. Custom Watermark Pick one watermark from the library and place it where you want it, on a single photo or a whole batch. THREE WATERMARK TYPES • Text watermark — build a clean, professional mark with rich text. • Image watermark — use any image of your own as the watermark. • Signature watermark — write a handwritten signature and use it as the watermark. WATERMARK LIBRARY Every watermark keeps its own look, so choosing one applies it to every photo you export, and ready-made templates give you a starting point. Font, color, opacity, rotation, spacing, margins and alignment are adjustable, and you can save, rename or delete your own watermarks at any time. PRIVACY Everything runs on device. Secure Watermark makes no network requests and needs no sign-in, and your pictures are never uploaded anywhere. The photos you capture for ID document mode stay inside the app's own sandbox while you work; only the watermarked result you export is saved to your photo library. PRO Pro removes the export limits: • Export full screen watermark images • Export certificate images and PDFs • Export several images at once • View the preview full screen Custom Watermark mode exports without Pro, one image at a time. The other two modes need Pro to export. Built for iPhone and iPad, with an interface in 22 languages. Your documents, your device.

About

IDCard Go

Features
Read full description

IDCard Go —— Smart Stitching & Scanning Tool IDCard Go is a practical tool designed to help users easily handle ID card photo stitching and scanning needs. Key Features: ID Card Stitching Supports horizontal and vertical stitching of the front and back of ID cards Save as high-resolution images or PDFs with one click for easy printing or digital archiving ID Card Scanning Quickly scan both sides of an ID card Save as images or PDFs for convenient use anytime, anywhere Whether you're handling official business, applying for documents, or archiving for daily use, IDCard Goprovides a convenient and efficient solution. —Subscription Plans & Auto-Renewal Info Flexible Subscription Plans for Every Need! Choose the perfect plan for your goals with our diverse subscription options: * 1 Week: Short-term flexibility * 1 Month: Ideal for project-based users * 2 Months / 3 Months: Mid-term deep dive * 6 Months: Long-term savings * 1 Year: Best value for committed users * Lifetime: One-time purchase, forever access —Auto-Renewal Details: * Payment will be charged to your iTunes Account at confirmation of purchase. * Subscriptions are billed weekly, monthly, bi-monthly, quarterly, semi-annually, or annually based on your chosen plan. * Subscriptions auto-renew within 24 hours before the current period ends (except Lifetime). * Renewal charges will be processed within 24 hours before the end of the current period, with the cost depending on your selected plan. * Manage subscriptions or turn off auto-renewal anytime via your Apple ID Account Settings. —Lifetime Membership Perks: * Pay once, unlock all features forever—no renewals, no hassle! Note: * Manage subscriptions at: Settings > [Your Name] > Subscriptions — Privacy Policy please visit: https://docs.qq.com/doc/DREt1SXJkbG9JYUFT * **Terms of use (EULA): * https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr * **Terms of apple please visit: * https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ * Questions? Contact us at: https://x.com/createeem

Screenshots

Secure Watermark4 screens
IDCard Go3 screens

Verdict

The call

The clearest difference is price: Secure Watermark at Free against IDCard Go's $2.99. Secure Watermark also leads on in-app purchases (none vs 7). IDCard Go's advantage is update cadence (every 3 months vs every 14 months). On ads, device support and iOS requirement 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

Secure Watermark is free to download; IDCard Go costs $2.99 up front. IDCard Go sells 7 in-app purchases, starting at $0.99 per 3 months. Secure Watermark asks for nothing beyond the download.

UpkeepUpdate frequency

Secure Watermark ships an update every 14 months, IDCard Go every 3 months. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 6 level
Secure Watermark versus IDCard Go: the parameters behind the verdict, then further details
ParameterSecure WatermarkIDCard Go
PriceFree — better$2.99
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 14 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size6 MB7 MB
Age rating4+4+
Developer泽海 黄乐祥 胡

In-app purchases

None

Secure Watermark

No in-app purchases

7 purchases

IDCard Go

Subscriptions6
  • 身份证扫描助手-会员3个月$0.993 Months
  • 身份证扫描助手-会员每月$0.991 Month
  • 身份证扫描助手-会员每周$0.997 Days
Show 3 more
  • 身份证扫描助手-会员2个月$0.992 Months
  • 身份证扫描助手-会员6个月$0.996 Months
  • 身份证扫描助手-会员每年$1.991 Year
One-time1
  • 身份证扫描助手-终身会员$4.99

Questions

Is Secure Watermark free?
Secure Watermark is free to download, with no in-app purchases.
Is IDCard Go free?
IDCard Go costs $2.99, and also offers in-app purchases.
Do Secure Watermark or IDCard Go have ads?
Neither Secure Watermark nor IDCard Go shows ads.
Which is updated more often, Secure Watermark or IDCard Go?
Secure Watermark ships an update every 14 months, and IDCard Go every 3 months. Most recently, Secure Watermark was updated on October 18, 2026 and IDCard Go on October 25, 2026.

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