Handy Dandy App store Dangerous Things / Vivokey

Dangerous Things / VivoKey

Handy Dandy Apps

Here is a repository including the app store links for both Android and iOS (where available)

This is a work in progress, I will no doubt have missed compatible implants, but I will continue to add them; and I will also add apps as and when then are released

Lets keep this thread clean with only Apps posted, and no comments

7 Likes

APP:
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VivoKey Apex Manager

PURPOSE:

About this app

VivoKey Apex Manager allows you to interface with your VivoKey Apex implant or smart wearable. This application interacts with the applets installed on your VivoKey device and manage related settings and information.

COMPATIBLE IMPLANTS:

VivoKey Apex Flex (Narrow, Module, Mega , Spectrum), VivoKey Apex Ring, FlexSecure

LINK:

2 Likes

APP:

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NFC Passkey Bridge

PURPOSE:
VivoKey NFC Passkey Bridge makes it possible to use your Android 14 or later phone to act as a bridge to route FIDO / passkey operations to NFC tokens for desktops, laptops, and tablets that do not have an NFC reader attached or integrated. When performing a passkey operation on such a device, choose “Use another device”, then choose “iPhone, iPad, or Android device”. A QR code will be displayed. Scan the QR code with your phone. This will set up a temporary Bluetooth connection between the device and your phone for the purpose of performing a passkey operation. You can then select VivoKey NFC Passkey Bridge as your passkey credential handler, then scan your NFC passkey token

COMPATIBLE IMPLANTS:

VivoKey Apex Flex (Narrow, Module, Mega , Spectrum), VivoKey Apex Ring, FlexSecure

LINK:

2 Likes

APP:
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VivoKey Vault

PURPOSE:

About this app

VivoKey Vault is a secure file storage app that uses VivoKey NFC implants as the access and encryption key. No passwords to remember. Just tap your VivoKey chip to unlock your most sensitive files.

HARDWARE-LEVEL SECURITY
Your files are encrypted with AES-256-GCM, the same encryption standard used by governments and financial institutions. Unlike traditional apps that rely on passwords, VivoKey Vault uses cryptographic keys derived from your VivoKey implant. If you don’t have the chip, you don’t have access.

OFFLINE FIDO2 SUPPORT
VivoKey Apex implants with FIDO2 resident keys work completely offline. No network connection or API credentials required. Your cryptographic keys never leave your implant, providing true hardware-backed security that works anywhere, anytime.

BUILT-IN WEB SERVER
Share your vault files with any device on your local network. Start the built-in web server and access your files from a laptop, tablet, or any device with a browser. The server runs on your phone over WiFi or hotspot and automatically adapts when networks change. No cloud, no uploads—everything stays on your local network.

NOTHING TO REMEMBER, NOTHING TO LOSE
Passwords can be guessed, stolen, or forgotten. Your VivoKey implant is always with you and can’t keylogged. Tap to unlock. It’s that simple.

SEAMLESS APP INTEGRATION
Open encrypted PDFs in your favorite reader. View protected photos in your gallery app. Edit sensitive documents in any editor. VivoKey Vault integrates with Android’s file system so your encrypted files work with all your apps while the vault is unlocked.

MULTI-CHIP SUPPORT
Register multiple VivoKey chips to the same vault. Mix and match Spark and Apex implants. If you have chips in both hands, either one unlocks your files. Share access with a trusted partner. Never worry about being locked out.

ENCRYPTED BACKUPS
Export your entire vault to an encrypted backup file. Restore it on a new phone using any of your registered chips. Your backup is fully encrypted—safe to store anywhere.

FEATURES
• AES-256-GCM authenticated encryption for all files
• Tap to unlock with your VivoKey NFC implant
• FIDO2 resident key support for offline auth (Apex)
• Online authentication via VivoKey API (Spark, Apex)
• Register multiple chips for backup access
• Encrypted .vkv backup files you can restore anywhere
• Open files in any app via Android’s file picker
• Configurable auto-lock timeout
• Encrypted thumbnails for images and videos
• Zero cloud dependency—everything stays on your device

PERFECT FOR
• Personal documents (IDs, passports, insurance cards)
• Financial records (tax returns, bank statements)
• Medical information (health records, prescriptions)
• Private photos and videos
• Work files (contracts, NDAs, confidential documents)
• Credentials (software licenses, recovery codes)

PRIVACY FIRST
We don’t collect your files, analytics, usage data, or device identifiers. Spark chips authenticate via VivoKey servers; Apex FIDO2 authentication happens entirely on-device. Your files never leave your device unless you export them.

REQUIREMENTS
• Android device with NFC capability
• VivoKey NFC implant (Spark or Apex)
• VivoKey API credentials for Spark chips (free at Verify API - VivoKey Technologies)
• No API creds needed for Apex FIDO2 authentication
• Built-in web server for browser based network file access

Your vault. Your chip. Your privacy.
COMPATIBLE IMPLANTS:
VivoKey Apex Flex (Narrow, Module, Mega , Spectrum), VivoKey Apex Ring, FlexSecure

LINK:

1 Like

APP:

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Spark Actions

PURPOSE:

The VivoKey Spark chip implant is your personal digital business card that is always with you and will make an impression people won’t ever forget. Easily create, update, and swap out contact details, websites, and information you want to share. When you want to share a digital business card with someone, just ask them to tap their phone to your Spark chip implant! Tapping an NFC enabled phone to your Spark will immediately launch the programmed action on their phone. Once they tap, they will see the action currently programmed for your Spark, such as opening a website, start an SMS message, create a new email to you, or download your digital business card directly into their phone contacts.

COMPATIBLE IMPLANTS:

Spark, Spark2

LINK:

1 Like

APP:
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NFC Passkey Manager

PURPOSE:

About this app

Using NFC Passkey Manager you can change your PIN, list all discoverable credentials, and delete credentials from your NFC based passkey token, security key, keyfob, or card.

COMPATIBLE IMPLANTS:

VivoKey Apex Flex (Narrow, Module, Mega , Spectrum), VivoKey Apex Ring, FlexSecure

LINK:

1 Like

APP:

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VivoKey Thermo

PURPOSE:
About this app

VivoKey Thermo is the official companion app for VivoKey Thermo temperature sensing implants. Simply tap your phone to your Thermo implant to instantly read the current temperature.

FEATURES

  • Temperature Reading: Tap your NFC-enabled phone to your Thermo implant to get a reading
  • Temperature History: Track your readings over time with automatic logging
  • Multiple Units: Display temperature in Celsius, Fahrenheit, Kelvin, or Rankine
  • Product Identification: Automatically identifies your VivoKey Thermo sensor type
  • Clean Interface: Simple, intuitive design focused on what matters

PRIVACY FIRST

VivoKey Thermo operates entirely offline. Your temperature data never leaves your device unless you share it. We do not collect analytics, usage data, or any personal information. No account required. No internet connection needed.

HOW IT WORKS

  1. Hold your phone to your VivoKey Thermo implant
  2. VivoKey Thermo app opens on Thermo NFC scan and takes reading
  3. View your temperature reading instantly
  4. Readings are automatically saved to your history

COMPATIBLE IMPLANTS:

VivoKey Thermo

LINK:

1 Like

APP:
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RawNFC

PURPOSE:

About this app

RawNFC is a powerful developer tool for communicating directly with NFC tags at the protocol level. Designed for engineers, security researchers, and NFC enthusiasts, this app allows you to send raw hexadecimal commands to NFC transponders and view their responses in real-time.

SUPPORTED TECHNOLOGIES

RawNFC supports a comprehensive range of NFC technologies:

  • NFC-A (ISO 14443-3A): The most common NFC technology, used by MIFARE and NTAG chips
  • NFC-B (ISO 14443-3B): Used by many secure contactless cards and identification documents
  • NFC-F (JIS 6319-4): Also known as FeliCa, popular in Japan for transit and payment systems
  • NFC-V (ISO 15693): Vicinity cards with longer read range, commonly used for access control
  • ISO-DEP (ISO 14443-4): The application layer protocol used by smart cards and secure elements
  • MIFARE Classic: NXP’s proprietary protocol for classic MIFARE cards (device dependent)
  • MIFARE Ultralight: Lightweight MIFARE protocol for simple storage applications (device dependent)

HOW IT WORKS

  1. Select your target NFC technology from the menu
  2. Enter one or more raw hex commands in the input field (one command per line)
  3. Present your NFC tag to the device
  4. View the raw hex responses from your tag in the output field

FEATURES

  • Clean, minimal interface designed for efficiency
  • Line-numbered input for multi-command sequences
  • Automatic hex validation and formatting
  • Share functionality to export command/response dumps
  • Deep link support for automated command sequences (rawnfc:// URI scheme)
  • No internet connection required for core functionality
  • No data collection or tracking

USE CASES

  • Debugging NFC applications and tag configurations
  • Learning NFC protocols and command structures
  • Security research and penetration testing
  • Verifying tag behavior and response patterns
  • Prototyping NFC solutions before implementation
  • Testing implantable NFC transponders and wearables

Visit RawNFC - VivoKey Technologies for documentation and support.

COMPATIBLE IMPLANTS:

Any High Frequency (13.56MHz) implant

LINK:

1 Like

APP:

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NFC Identifier

PURPOSE:

About this app

Scan any NFC transponder and get the UID, basic information, and sometimes more (such as apps on DESFire or Java Card credentials) when a chip is identified. You’ll also see a list of relevant Dangerous Things products if compatible options exist.

COMPATIBLE IMPLANTS:

Any High Frequency (13.56MHz) implant

LINK:

1 Like

APP:

Plug in your Proxmark3 via USB

Proxmark3.app

PURPOSE:

It’s a web app proxmark3 client and firmware management service. I’ve also included portable pre-compiled client packages for Windows and MacOS (on the firmware page).

COMPATIBLE PROXMARK:

PM3 Easy, PM3 RDV4

LINK:

2 Likes