# ZeroAuth vs Authenticator App

The clearest difference is in-app purchases: ZeroAuth at none against Authenticator App's 2. Authenticator App's advantage is update cadence (every 5 days vs every 5 weeks) and iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Authenticator App sells 2 in-app purchases, starting at $6.99 per 7 days. ZeroAuth asks for nothing beyond the download.

ZeroAuth ships an update every 5 weeks, Authenticator App every 5 days. The most recent releases landed on September 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ZeroAuth | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/authenticator-app-2fa-app/id6780947344/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 80 MB | 24 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chandan Kumar Dash](https://appshunter.io/developer/1810937454) | [Temurbek Rakhimov](https://appshunter.io/developer/6780947346) |

## What reviewers say

### ZeroAuth

[App page](https://appshunter.io/ios/app/zeroauth/id6764048764)

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

**In-app purchases:** none


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-app/id6780947344)

This app generates time-based one-time passwords (TOTP) for secure online account access. It supports adding accounts via QR codes or manual entry, with codes stored locally for offline use. Optional Face ID protection enhances privacy.

**Highlights:** Generate time-based one-time passwords (TOTP), Add accounts via QR code or manual entry, Secure local storage of codes, Offline access to verification codes, Optional Face ID protection, Fast and easy to use interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Premium | $6.99 | per 7 days |
| Authenticator Premium | $44.99 | per year |


## Frequently asked questions

### Is ZeroAuth free?

ZeroAuth 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 ZeroAuth or Authenticator App have ads?

Neither ZeroAuth nor Authenticator App shows ads.

### Which is updated more often, ZeroAuth or Authenticator App?

ZeroAuth ships an update every 5 weeks, and Authenticator App every 5 days. Most recently, ZeroAuth was updated on September 13, 2026 and Authenticator App on September 29, 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.*