# Down Under Bridge Units vs Authenticator© App

The clearest difference is in-app purchases: Down Under Bridge Units at none against Authenticator© App's 5. Down Under Bridge Units also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). Authenticator© App's advantage is update cadence (every 9 days vs every 10 months) and chart position (#44 vs unranked). On price and device support there is nothing between them.

Both are free to download. Authenticator© App sells 4 in-app purchases, starting at $5.99 per 7 days. Down Under Bridge Units asks for nothing beyond the download.

Down Under Bridge Units ships an update every 10 months, Authenticator© App every 9 days. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Down Under Bridge Units | Authenticator© App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (815 ratings)](https://appshunter.io/ios/app/authenticator-app/id6763306820/reviews)** |
| Number of ratings | — | **815** |
| Positive reviews | — | 24.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#44** |
| Size | 44 MB | 107 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [EWP Truck Hire Pty Ltd](https://appshunter.io/developer/1638221751) | [To Ngoc Mai](https://appshunter.io/developer/1701365237) |

## What reviewers say

### Down Under Bridge Units

[App page](https://appshunter.io/ios/app/down-under-bridge-units/id1640447317)

**Features:** macOS Compatibility

**In-app purchases:** none


### Authenticator© App

[App page](https://appshunter.io/ios/app/authenticator-app/id6763306820)

**Currently charting:** #44 Top Grossing · Utilities, #96 Top Free · Utilities (US App Store)

This app provides a secure way to manage two-factor authentication (2FA) for your online accounts. It generates time-based one-time passwords (TOTP) directly on your device, offering enhanced security against interception and SIM swap attacks. Easily set up accounts, access codes offline, and manage your credentials with advanced protection options.

**Highlights:** Secure 2FA and OTP generation, Offline code access, Easy account setup via QR or manual entry, Password storage and management, Private in-app browser, Biometric and PIN protection

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Weekly Premium | $5.99 | per 7 days |
| Authenticator Weekly Premium | $6.99 | per 7 days |
| Authenticator Weekly Premium | $7.99 | per 7 days |
| Authenticator Weekly Premium | $9.99 | per 7 days |


## Frequently asked questions

### Is Down Under Bridge Units free?

Down Under Bridge Units 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 Down Under Bridge Units or Authenticator© App have ads?

Authenticator© App shows ads; Down Under Bridge Units does not.

### Which is updated more often, Down Under Bridge Units or Authenticator© App?

Down Under Bridge Units ships an update every 10 months, and Authenticator© App every 9 days. Most recently, Down Under Bridge Units was updated on October 1, 2026 and Authenticator© App on October 14, 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.*