SIDEN

Tool for NTAG I²C implants

Only for iPhone

Free

iPhone

Read, write, and manage xSIID/NExT v2 NFC chips. Scan QR codes, create reusable tiles, dump memory, and use Share Extension to import links instantly. SIDEN is a utility app for xSIID / NExT v2 users to manage NFC chip data quickly and safely. Key features: • Read NFC tags and view UID + NDEF records • Write links and payloads from customizable dashboard tiles • Scan QR codes to add or write URLs • Import links from Share Sheet (URL, text, or QR image) • Reorder, edit, and style tiles (icon, color, title) • Memory Dump tools for Sector 0 inspection • Initialize NDEF and Full Wipe tools for maintenance • Local-first design with iCloud sync • No tracking and no analytics collection SIDEN is designed for fast daily use, diagnostics, and demo/showcase workflows for xSIID/NExT v2.

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The developer, VivoKey Japan LLC, 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

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • Dark Interface

      • Differentiate Without Color Alone

      • Sufficient Contrast

      • Reduced Motion

    Information

    Seller
    • VivoKey Japan LLC
    Size
    • 71.2 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    Languages
    • English and Japanese
    Age Rating
    4+
    Copyright
    • © 2026 VivoKey Japan LLC
  • Developer Website
  • Privacy Policy

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