DotInk: EInk Assistant

Font & Ebook Converter Tool

USD 1.99 · Designed for iPad

The ultimate companion for portable E-ink devices. Convert fonts and e-books locally, preview in real-time, and manage your devices seamlessly offline. Designed for e-ink enthusiasts, making your portable readers more powerful and easier to use. Seamlessly convert .ttf fonts and e-books on your phone into .bin fonts, XTC, or EPUB formats perfectly tuned for portable e-ink screens. [CORE FEATURES] • WYSIWYG Font Customization Import external .ttf fonts or use system fonts. Adjust line spacing, tracking, size, weight, and more with precision. Real-time simulation of various e-ink screens—preview exactly how it looks before exporting. • Powerful E-book Toolbox Import various e-book formats to preview layouts directly on your phone. Customize formatting and convert to standard formats with a single tap. • Seamless Device Integration Wireless connection to supported devices for font pushing and file management. Supported Devices: XTEInk X4, EDCBook, Murphy 3.7, Wudada·Little Ink, and more. • Privacy First & Offline 100% Offline: All processing is done locally on your device. No user data is ever uploaded. (Note: Network and Location permissions are required solely for connecting to your e-ink hardware.) [NOTE FROM DEVELOPER] This app is an indie project built with "AI Vibe Coding." While I strive for perfection, I cannot test every scenario. If you encounter any bugs, I appreciate your understanding. Thank you to all the "Community Supporters" for your feedback! Feel free to leave suggestions or comments.

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This update fixes an issue on iOS 26 where fonts could not be exported, and includes the following new features and improvements: 1. New eBook Mode (Beta) • Supports importing EPUB and TXT files with in-app preview. • Freely adjust layout, font size, and fonts, with support for exporting to XTC or EPUB formats. 2. Deep Compatibility with EDCBook v1.4.2 • Full support for font preview, adjustment, and generation of .bin fonts on this firmware version. • Supports connecting to the device for file management and device settings configuration. 3. XTEInk “Wi-Fi Collaboration” Mode Now Available • No longer limited to hotspot connections. Devices can now connect directly over a local network in supported environments. • Fixes issues where connection failures or transfer errors could occur after firmware updates. 4. Experience and Interaction Improvements • Memory feature: Automatically restores the last browsing position and parameter settings after restarting the app. • Preset management: Save your preferred font adjustment settings as presets for quick access. • Interface folding: Allows collapsing rarely used control sections for a cleaner, more focused interface.

The developer, 业 毕, 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 based, for example, on the features you use or your age. Learn More

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

    • Provider
      • 业 毕
    • Size
      • 9.9 MB
    • Category
      • Utilities
    • Compatibility
      Requires iOS 15.0 or later.
      • iPhone
        Requires iOS 15.0 or later.
      • iPad
        Requires iPadOS 15.0 or later.
      • iPod touch
        Requires iOS 15.0 or later.
      • Mac
        Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.0 or later.
    • Languages
      English and 2 more
      • English, Simplified Chinese, Traditional Chinese
    • Age Rating
      4+
    • Copyright
      • © 2025 大业爱数码