# Bastion Key — Your smartphone as a key

> Your smartphone as a key (iPhone/iPad app by Bastion Dynamics Ltd.)

- Source: https://appshunter.io/ios/app/bastion-key/id6782100014 (this page in markdown: same URL + `.md`)
- Developer: [Bastion Dynamics Ltd](https://appshunter.io/developer/6782100016)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 53 MB
- Languages: American English
- Released: 2026-07-08
- Data updated: 2026-07-31
- User reviews in markdown: https://appshunter.io/ios/app/bastion-key/id6782100014/reviews.md

## What is Bastion Key?

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.


## Version history (last 5 releases)

### 1.0.4 — 2026-07-26

Improved onboarding experience with countdown timer and video playback progress bar. Also added the option to display custom key card designs per locking system.

### 1.0.3 — 2026-07-23

Access can now be requested by scanning a lock and the app can optionally be protected with Face ID / Touch ID / PIN

### 1.0.2 — 2026-07-14

New accessibility features, such as optional vibration on connection and screen reader support

### 1.0.1 — 2026-07-09

A new, clear onboarding experience

### 1.0 — 2026-07-08

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-31.*