SIDEN

VivoKey Japan LLC Utilities iPhoneiPadiPod touch

SIDEN is a free Utilities app for iPhone and iPad by VivoKey Japan LLC. Requires iOS 18.0. Updated October 17, 2026.

Price: Free; on the App Store
Size: 77 MB; Age 4+
Updated: Oct 17; 2026 · v1.5.1

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Screenshots

About SIDEN

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.

What’s new

Version 1.5.1 · Updated October 17, 2026

Long-press a tile for a new action panel with large Edit and Delete buttons, so it's easy to hit on the first tap. The dashboard also uses less battery when the hologram background is off.

App privacy

The developer, VivoKey Japan LLC, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

SIDEN is a free Utilities app for iPhone, iPad and iPod touch, developed by VivoKey Japan LLC. It requires iOS 18.0 or later, is 77 MB to download and is available in 2 languages. It was first released on March 12, 2026 and last updated on October 17, 2026.

Category: Utilities
Price: Free
Version: 1.5.1
Size: 77 MB
Requires: iOS 18.0 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English, Japanese
Age rating: 4+
Released: March 12, 2026
Last updated: October 17, 2026
Developer: VivoKey Japan LLC

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Alternatives to SIDEN

Looking for apps like SIDEN? Here are 6 similar apps on the App Store. The highest rated is ChipVault (5.0/5), and 5 of the 6 are free to download.

SIDEN vs. alternatives
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SIDEN	–	Free	October 17, 2026
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