# Authenticator App vs Invoice Check

The clearest difference is in-app purchases: Invoice Check at none against Authenticator App's 8. Invoice Check also leads on ads (none vs shown). Authenticator App's advantage is iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Authenticator App sells 8 in-app purchases, starting at $0.99 per 7 days. Invoice Check asks for nothing beyond the download.

## The numbers

| Metric | Authenticator App | Invoice Check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (86 ratings)](https://appshunter.io/ios/app/authenticator-app-2fa-mfa/id6754013259/reviews)** | — |
| Number of ratings | **86** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 58 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [SAN MOBILE](https://appshunter.io/developer/1678140821) | [Paride Di Lazzaro](https://appshunter.io/developer/6787651798) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-mfa/id6754013259)

This app provides secure and effortless two-factor authentication (2FA) and multi-factor authentication (MFA) by generating time-based one-time passwords (TOTP) for online accounts. It offers encrypted backup, cloud sync, and QR code integration for easy setup and cross-device access, serving as a reliable alternative to other authenticator apps.

**Highlights:** Secure 2FA/MFA code generation, Encrypted backup and cloud sync, QR code integration for easy setup, Cross-device compatibility, Fast and consistent performance

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator 2FA Weekly Basic | $0.99 | per 7 days |
| Autenticador 2FA Weekly Pre | $7.99 | per 7 days |
| Authentication 2FA Weekly Plus | $8.99 | per 7 days |
| FreeOTP Authenticator Weekly Pro | $9.99 | per 7 days |
| MFA Authenticator Monthly Basic | $29.99 | per month |
| Yearly Pre Subscription | $39.99 | per year |
| Yearly Plus Subscription | $49.99 | per year |
| Yearly Pro Subscription | $59.99 | per year |


### Invoice Check

[App page](https://appshunter.io/ios/app/invoice-check/id6798591155)

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

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator App free?

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

### Is Invoice Check free?

Invoice Check is free to download, with no in-app purchases.

### Do Authenticator App or Invoice Check have ads?

Authenticator App shows ads; Invoice Check does not.

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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.*