# SISDPU vs Authenticator App

The clearest difference is in-app purchases: SISDPU at none against Authenticator App's 8. SISDPU also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.1). On price, update cadence 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. SISDPU asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SISDPU | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (91 ratings)](https://appshunter.io/ios/app/authenticator-app-2fa-mfa/id6754013259/reviews)** |
| Number of ratings | — | **91** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 14 MB | 58 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Santana Ferreira](https://appshunter.io/developer/894661001) | [SAN MOBILE](https://appshunter.io/developer/1678140821) |

## What reviewers say

### SISDPU

[App page](https://appshunter.io/ios/app/sisdpu/id1058500422)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is SISDPU free?

SISDPU 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 SISDPU or Authenticator App have ads?

Authenticator App shows ads; SISDPU does not.

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

SISDPU ships an update weekly, and Authenticator App weekly. Most recently, SISDPU was updated on October 17, 2026 and Authenticator App on October 21, 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.*