Dark Bio: Ark Companion
Private by design
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Pair with your Ark. Authorize on your terms. Every action logged, every byte encrypted.
Nothing happens to your Ark without your say-so. Ark Companion is the key to your Ark; pair once, and every unlock, every analysis, every access goes through you first.
Pairing is verified visually: a color sequence must match on both devices before a post-quantum encrypted link is established. From that point on, you are the gatekeeper.
• Approve or deny every unlock with a hold-to-authorize gesture
• Review third-party analysis tasks before they touch your data
• Browse a tamper-evident audit journal of every device event
• Get notified the moment your Ark needs attention
• Lock the app behind Face ID or Touch ID
Your Ark encrypts your data locally, on hardware you physically hold. Ark Companion never sees, stores, or transmits that data. All communication is end-to-end encrypted through a zero-knowledge relay that cannot read your messages.
No account. No analytics. No tracking. Just you and your Ark.
Follow us: @dark_dot_bio on X • @dark.bio on Bluesky
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Small UI/UX improvements around pairing and notifications.
The developer, Dark Bio AG, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Dark Bio AG
- Size
- 39.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Dark Bio AG