# Atus Defender vs Authenticator App

The clearest difference is in-app purchases: Atus Defender at none against Authenticator App's 5. Atus Defender also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Authenticator App sells 5 in-app purchases, starting at $4.99 per 7 days. Atus Defender asks for nothing beyond the download.

Atus Defender ships an update every 2 months, Authenticator App every 5 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Atus Defender | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (84 ratings)](https://appshunter.io/ios/app/authenticator-app-safeid/id6447739540/reviews)** |
| Number of ratings | — | **84** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | **Free** | Subscription |
| Size | 26 MB | 52 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Skyresponse AB](https://appshunter.io/developer/639658030) | [Kain Suite Pte. Ltd.](https://appshunter.io/developer/1761133001) |

## What reviewers say

### Atus Defender

[App page](https://appshunter.io/ios/app/atus-defender/id1078956075)

This service provides a safety solution for individuals working alone or in vulnerable situations. It allows users to quickly raise an alarm and summon assistance, with their location and profile information transmitted to a monitoring center for rapid response.

**Highlights:** Quick alarm activation, Dead-man alarm function, Real-time location tracking, Automatic emergency calls, Profile-based response actions, Indoor beacon location support

**Features:** macOS Compatibility

**In-app purchases:** none


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-safeid/id6447739540)

Enhance your online security with multi-factor authentication and identity protection. This app secures your accounts against hackers, scans networks for vulnerabilities, and monitors for data breaches. It also offers safe browsing with VPN capabilities to protect your privacy.

**Highlights:** Two-factor authentication (OTP generation), QR code and manual account setup, Wi-Fi and system security scanner, Email breach monitoring, Secure browsing with VPN, Cross-device synchronization

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Monthly Subscription | $12.99 | per month |
| Yearly Subscription | $29.99 | per year |
| Lifetime | $39.99 | one-time |
| Lifetime Purchase | $39.99 | one-time |


## Frequently asked questions

### Is Atus Defender free?

Atus Defender is free to download, with no in-app purchases.

### Is Authenticator App free?

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

### Do Atus Defender or Authenticator App have ads?

Authenticator App shows ads; Atus Defender does not.

### Which is updated more often, Atus Defender or Authenticator App?

Atus Defender ships an update every 2 months, and Authenticator App every 5 weeks. Most recently, Atus Defender was updated on November 6, 2026 and Authenticator App on November 3, 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.*