# Authenticator vs Idum Authenticator

The clearest difference is ads: Idum Authenticator at none against Authenticator's shown. Idum Authenticator also leads on update cadence (every 2 days vs every 2 weeks). Authenticator's advantage is device support (4 vs 1) and iOS requirement (13.0 vs 18.0). On price and in-app purchases there is nothing between them.

Both are free to download. Authenticator sells 16 in-app purchases, starting at $1.99 per month and Idum Authenticator sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Authenticator ships an update every 2 weeks, Idum Authenticator every 2 days. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Authenticator | Idum Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (43 ratings)](https://appshunter.io/ios/app/authenticator-otp-manager/id6736586860/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 116 MB | 9 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [VIDUS TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1771341575) | [IDUM](https://appshunter.io/developer/6776361265) |

## What reviewers say

### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-otp-manager/id6736586860)

This app securely manages your two-factor authentication codes with end-to-end encryption and cloud backup. It offers automatic multi-device synchronization and works offline, supporting thousands of major services.

**Highlights:** Secure & Private Encryption, Encrypted Cloud Backup, Automatic Multi-Device Sync, Works Offline, Multiple Import Options, Supports Major Services

**Features:** Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly, One Time Offer | $1.99 | per month |
| Authenticator App - Weekly Special | $3.99 | per 7 days |
| Authenticator App Premuim - Weekly | $7.99 | per 7 days |
| Weekly Flex Security | $7.99 | per 7 days |
| Authenticator App - Premium | $7.99 | per 7 days |
| Monthly Full Security | $9.99 | per month |
| Annual, One Time Offer | $9.99 | per year |
| Authenticator App - Weekly Premium | $14.99 | per 7 days |
| Authenticator App - Special | $17.99 | per year |
| Authenticator App - Annual Special | $19.99 | per year |
| Authenticator App - Premium | $49.99 | per year |
| Annual Security | $49.99 | per year |
| Annual Elite Security | $49.99 | per year |
| Lifetime Premium - Special | $39.99 | one-time |
| Authenticator App - Lifetime | $49.99 | one-time |
| Authenticator App - Premium | $99.99 | one-time |


### Idum Authenticator

[App page](https://appshunter.io/ios/app/idum-authenticator/id6801459486)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Idum Authenticator Pro Weekly | $3.99 | per 7 days |
| Idum Authenticator Pro Yearly | $29.99 | per year |
| Idum Authenticator Lifetime | $69.00 | one-time |


## Frequently asked questions

### Is Authenticator free?

Authenticator is free to download, with in-app purchases available.

### Is Idum Authenticator free?

Idum Authenticator is free to download, with in-app purchases available.

### Do Authenticator or Idum Authenticator have ads?

Authenticator shows ads; Idum Authenticator does not.

### Which is updated more often, Authenticator or Idum Authenticator?

Authenticator ships an update every 2 weeks, and Idum Authenticator every 2 days. Most recently, Authenticator was updated on October 14, 2026 and Idum Authenticator on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*