# Castle: Mission-critical MFA — Modern multi-factor auth

> Modern multi-factor auth (iPhone/iPad app by Station70.)

- Source: https://appshunter.io/ios/app/castle-mission-critical-mfa/id6761492302 (this page in markdown: same URL + `.md`)
- Developer: [Station70](https://appshunter.io/developer/1777502074)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 18.5 · 17 MB
- Languages: American English
- Released: 2026-05-28
- Data updated: 2026-07-19
- User reviews in markdown: https://appshunter.io/ios/app/castle-mission-critical-mfa/id6761492302/reviews.md

## What is Castle?

Just-in-time access: require approval for critical access to unlock MFA codes.

Shared accounts: securely share MFA between team member and groups. Allows dynamic re-assignment of account MFA access on-the-fly.

Social media accounts: manage shared access to social media accounts by individual or groups. Track access in real-time by team member, device, account, and location.

This app can only be used by Station70 Castle customers. See our product offerings at station70.com.


## Version history (last 2 releases)

### 0.5.1 — 2026-07-14

Bug fixes and performance improvements.

### 0.5.0 — 2026-05-29

No release notes.

## More apps by Station70

- [Foundation Security](https://appshunter.io/ios/app/foundation-security/id6741923636)

All apps by Station70: https://appshunter.io/developer/1777502074

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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 2026-07-19.*