Bastion Key
Your smartphone as a key
Only for iPhone
Free
iPhone
Bastion turns your phone into the keys for your building. If your housing provider or site manager has issued you a digital key, register it once and hold your phone to the lock to open the door. No extra hardware, no card to carry.
- Register a key from the invite you receive, in a couple of taps.
- Open compatible locks by holding your phone to them over NFC. Opening works offline.
- See the keys you hold and when they expire.
- Clear guidance when something needs attention, such as a key that needs syncing.
Keys are issued and managed by your housing or locking system provider. Bastion does not require an account or password.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improved onboarding experience with countdown timer and video playback progress bar. Also added the option to display custom key card designs per locking system.
The developer, Bastion Dynamics Ltd, 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 Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bastion Dynamics Ltd
- Size
- 55.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Bastion Dynamics Ltd.