# Authenticator App vs NADCA Defects

The clearest difference is in-app purchases: NADCA Defects at none against Authenticator App's 8. NADCA Defects also leads on ads (none vs shown) and update cadence (every 2 days vs weekly). On price, device support and iOS requirement there is nothing between them.

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

Authenticator App ships an update weekly, NADCA Defects every 2 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Authenticator App | NADCA Defects |
| --- | --- | --- |
| 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 | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 58 MB | 55 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SAN MOBILE](https://appshunter.io/developer/1678140821) | [Solutions Fonderie](https://appshunter.io/developer/1094095935) |

## 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 |


### NADCA Defects

[App page](https://appshunter.io/ios/app/nadca-defects/id6755052593)

**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 NADCA Defects free?

NADCA Defects is free to download, with no in-app purchases.

### Do Authenticator App or NADCA Defects have ads?

Authenticator App shows ads; NADCA Defects does not.

### Which is updated more often, Authenticator App or NADCA Defects?

Authenticator App ships an update weekly, and NADCA Defects every 2 days. Most recently, Authenticator App was updated on October 13, 2026 and NADCA Defects on October 7, 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.*