# Idum Authenticator — TOTP + iCloud Keychain

> TOTP + iCloud Keychain (iPhone/iPad app by IDUM.)

- Source: https://appshunter.io/ios/app/idum-authenticator/id6801459486 (this page in markdown: same URL + `.md`)
- Developer: [IDUM](https://appshunter.io/developer/6776361265)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 9 MB
- Languages: American English, French (France), German (Germany), European Spanish
- Released: 2026-08-17
- Data updated: 2026-09-30
- User reviews in markdown: https://appshunter.io/ios/app/idum-authenticator/id6801459486/reviews.md

## What is Idum Authenticator?

Idum Authenticator keeps your two-factor codes private and locked behind Face ID. Lost your phone or upgrading to a new iPhone? Turn on iCloud Sync in Settings and your codes come back automatically—end-to-end encrypted via iCloud Keychain.

Generate TOTP and HOTP codes for the sites and apps you already use. Scan a QR code or paste an otpauth:// URI. By default, secrets stay on this device only. When you enable iCloud Sync in the app AND iCloud Keychain in iOS Settings, your Spaces and OTP secrets are stored in iCloud Keychain (E2E encrypted, not iCloud Drive or CloudKit). No Idum account required. The free plan stores up to 4 accounts; Idum Authenticator Pro unlocks unlimited accounts.

WHY IDUM AUTHENTICATOR
• Optional iCloud Keychain sync—OFF by default; you control it
• Unlock with Face ID or Touch ID, then a 6-digit PIN
• TOTP and HOTP (SHA-1 / SHA-256 / SHA-512, 6–8 digits)
• Scan setup QR codes with the camera, or import from Photos / Files
• Copy a code with one tap
• No Idum account, no analytics, no ads

GET STARTED
• Create a PIN on first launch
• Tap Add account and scan your service's QR code
• Codes refresh automatically; HOTP counters increment when you copy
• Enable iCloud Sync in Settings if you want restore on a new device

PRIVACY
• Default is local-only (Keychain on this iPhone)
• Optional iCloud Keychain sync (E2E encrypted, user must enable)
• PIN and Face ID unlock never sync—always this device only
• Camera is used only to scan setup QR codes
• Face ID is used only to unlock the app

SUBSCRIPTIONS
Idum Authenticator Pro (unlimited accounts) is available as:
• Weekly auto-renewable subscription — €4.99 per week
• Yearly auto-renewable subscription — €32.99 per year
• Lifetime unlock — €78, one-time (non-consumable)

Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in iPhone Settings → Apple ID → Subscriptions. Prices are for the France / Euro storefront; other regions may differ.

Support: https://macapps.idum.app/support/
Privacy Policy: https://macapps.idum.app/apps-privacy/
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Idum Authenticator Pro Yearly | $29.99 | per year |
| Idum Authenticator Pro Weekly | $3.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Idum Authenticator Lifetime | $69.00 | one-time |



## Version history (last 5 releases)

### 1.6 — 2026-09-02

Fix bugs

### 1.5 — 2026-08-28

Fix bugs

### 1.4 — 2026-08-26

Version 1.4 adds iCloud Keychain sync and German + Spanish App Store listings.

• Optional iCloud Keychain sync (OFF by default; enable in Settings)
• Spaces and OTP secrets sync via iCloud Keychain (E2E encrypted)
• PIN and Face ID unlock stay this-device-only
• German (de-DE) and Spanish (es-ES) App Store listings

### 1.3 — 2026-08-20

Deletion of a space

### 1.2 — 2026-08-20

New interface

## Apps similar to Idum Authenticator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [TrustOTP: 2FA Authenticator](https://appshunter.io/ios/app/trustotp-2fa-authenticator/id6758748275) | — | Free | Utilities |
| [Screen Record: Screen recorder](https://appshunter.io/ios/app/screen-record-screen-recorder/id6446246440) | 4.1 (54) | Free | Utilities |
| [Authenticator App 2FA](https://appshunter.io/ios/app/authenticator-app-2fa/id6796618487) | — | Free | Utilities |
| [qnect home](https://appshunter.io/ios/app/qnect-home/id1485716388) | — | Free | Utilities |
| [Phone Temperature](https://appshunter.io/ios/app/phone-temperature/id6760695205) | 4.3 (193) | Free | Utilities |
| [BioID Facial Recognition](https://appshunter.io/ios/app/bioid-facial-recognition/id1054317153) | 2.1 (56) | Free | Utilities |

## More apps by IDUM

- [Idum Cat](https://appshunter.io/ios/app/idum-cat/id6805226020)

All apps by IDUM: https://appshunter.io/developer/6776361265

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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 2026-09-30.*