Comparison

Lexikos Edge vs Secure Watermark

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

Head to head
About

Lexikos Edge

This application allows installers to commission and users to control Leedarson luminaires. It offers features like on/off switching, brightness adjustment, scene management, and scheduling. The app supports OTA updates and provides role-based access control.

Highlights
  • Import pre-defined templates
  • Control switch on/off and brightness
  • Manage scenes
  • Set timers and schedules
  • OTA support
  • Administrator and user roles
  • QR code access
Features
Read full description

Lexikos Edge is a very easy-to-use APP.The installers can use it for commissioning and the users to control the luminaires.With the app you can control Leedarson devices. Features: 1. Quickly import pre-defined template 2. Control switch on/off and brightness 3. Add/modify/delete/trigger scenes 4. Add/modify/delete/trigger the timer/schedule 5. OTA support 6. Two Roles:administrator and user 7. Different user access: password/open/QR code 8. No account registration required We will continue to work hard to build a better user experience.Thank you for using Lexikos Edge.

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.

Screenshots

Lexikos Edge4 screens
Secure Watermark4 screens

Verdict

The call

The clearest difference is rating: Lexikos Edge at 5.0 against Secure Watermark's 1.0. Lexikos Edge also leads on update cadence (every 4 months vs every 14 months) and iOS requirement (11.0 vs 17.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Lexikos Edge holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Lexikos Edge ships an update every 4 months, Secure Watermark every 14 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 6 level
Lexikos Edge versus Secure Watermark: the parameters behind the verdict, then further details
ParameterLexikos EdgeSecure Watermark
PriceFreeFree
Rating5.0 (1 ratings) — better1.0 (1 ratings)
Number of ratings11
Update frequencyEvery 4 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size29 MB6 MB
Age rating4+4+
DeveloperLeedarson Lighting Co., Ltd泽海 黄

Customer experience

Lexikos Edge

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Secure Watermark

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Lexikos Edge

No in-app purchases

None

Secure Watermark

No in-app purchases

Questions

Is Lexikos Edge free?
Lexikos Edge is free to download, with no in-app purchases.
Is Secure Watermark free?
Secure Watermark is free to download, with no in-app purchases.
Which has better reviews, Lexikos Edge or Secure Watermark?
Lexikos Edge is rated higher. Lexikos Edge averages 5.0 out of 5 from 1 ratings, while Secure Watermark averages 1.0 from 1 ratings.
Do Lexikos Edge or Secure Watermark have ads?
Neither Lexikos Edge nor Secure Watermark shows ads.
Which is updated more often, Lexikos Edge or Secure Watermark?
Lexikos Edge ships an update every 4 months, and Secure Watermark every 14 months. Most recently, Lexikos Edge was updated on November 3, 2026 and Secure Watermark on November 4, 2026.

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