# Authenticator App・ 2FA, MFA vs USDT Alert

The clearest difference is rating: USDT Alert at 5.0 against Authenticator App・ 2FA, MFA's 4.6. USDT Alert also leads on update cadence (every 8 days vs every 3 weeks). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Authenticator App・ 2FA, MFA sells 3 in-app purchases, starting at $7.99 per 7 days and USDT Alert sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

USDT Alert holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Authenticator App・ 2FA, MFA ships an update every 3 weeks, USDT Alert every 8 days. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Authenticator App・ 2FA, MFA | USDT Alert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (7 ratings)](https://appshunter.io/ios/app/authenticator-app-2fa-mfa/id6758366517/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/usdt-alert/id6775806755/reviews)** |
| Number of ratings | **7** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Freemium | Freemium |
| Size | 96 MB | 86 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [090Bravo Hong Kong Limited](https://appshunter.io/developer/1843050449) | [ScanAI LLC](https://appshunter.io/developer/6775806757) |

## What reviewers say

### Authenticator App・ 2FA, MFA

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-mfa/id6758366517)

This app generates time-based one-time passwords for enhanced login security. It supports multiple accounts, QR code scanning for easy setup, and biometric protection. Premium offers unlimited access to all features, including a built-in password manager and breach checking.

**Highlights:** Secure 2FA code generation, QR code scanning setup, Multi-account support, Biometric protection (Face ID/Touch ID), Built-in password manager, Leaked password and email breach checks, Cross-device backup and sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Weekly Subscription With 3D Trial | $9.99 | per 7 days |
| Yearly Subscription Basic | $69.99 | per year |


### USDT Alert

[App page](https://appshunter.io/ios/app/usdt-alert/id6775806755)

Receive instant push notifications for USDT transactions on monitored wallet addresses. Track multiple addresses with clear event details and quick setup for actionable updates.

**Highlights:** Real-time USDT wallet monitoring, Instant push notifications, Multi-address tracking, Clear activity view, Simple address management

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $9.99 | per month |
| Yearly Membership | $89.99 | per year |


## Frequently asked questions

### Is Authenticator App・ 2FA, MFA free?

Authenticator App・ 2FA, MFA is free to download, with in-app purchases available.

### Is USDT Alert free?

USDT Alert is free to download, with in-app purchases available.

### Which has better reviews, Authenticator App・ 2FA, MFA or USDT Alert?

USDT Alert is rated higher. Authenticator App・ 2FA, MFA averages 4.6 out of 5 from 7 ratings, while USDT Alert averages 5.0 from 3 ratings.

### Do Authenticator App・ 2FA, MFA or USDT Alert have ads?

Neither Authenticator App・ 2FA, MFA nor USDT Alert shows ads.

### Which is updated more often, Authenticator App・ 2FA, MFA or USDT Alert?

Authenticator App・ 2FA, MFA ships an update every 3 weeks, and USDT Alert every 8 days. Most recently, Authenticator App・ 2FA, MFA was updated on October 4, 2026 and USDT Alert on October 16, 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.*