TraceLock: Tracing Lightbox

Tracing Lightbox & Lock Screen

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Turn your iPhone or iPad into a professional tracing lightbox! One-tap screen lock, instant sketch conversion, and easy tracing on paper. Turn your iPhone or iPad into a tracing lightbox: import an image, position it, lock the screen against accidental touches, place paper on top, and trace. TraceLock is intentionally focused. It solves one specific job with no account, no ads, and no cloud photo uploads. • Import an image from Photos • Convert it to sketch, outline, comic, black-and-white, or high contrast • Scale, move, rotate, and mirror it to fit your paper • Lock the canvas so paper and palms do not move the image • Keep the display awake and use full brightness while tracing • Hold for two seconds to unlock safely Photo processing happens on your device. TraceLock does not collect personal data. Try every feature with total peace of mind.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

1. Seamless Export & Sharing: Share your tracing outlines and sketches directly using the native iOS share sheet, with instant saving to Photos. 2. New Onboarding Guide: Added an interactive 3-step walkthrough to get started quickly. Replay it anytime in Settings. 3. Enhanced iPad & Apple Pencil Experience: Floating side toolbar optimized for iPad; full Apple Pencil hover preview and double-tap gesture to quickly lock or unlock the screen. 4. Polished Toolbar Layout: Streamlined top controls and improved button layouts across all languages. 5. Performance & Reliability: Improved outline rendering speed and fixed minor issues for a smoother experience.

Version 1.0.2

The developer, 帅 王, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    帅 王
    Size
    3.3 MB
    Category
    Graphics & Design
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • iPad
      Requires iPadOS 16.0 or later.
    • Mac
      Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 13 more
    • English, French, German, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Vietnamese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Wang Shuai
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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