# Opus App vs Authenticator App ․

The clearest difference is in-app purchases: Opus App at none against Authenticator App ․'s 2. Opus App also leads on ads (none vs shown) and iOS requirement (9.0 vs 15). On price, update cadence and device support there is nothing between them.

Both are free to download. Authenticator App ․ sells 2 in-app purchases, starting at $5.99 per 7 days. Opus App asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Opus App | Authenticator App ․ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Size | 155 MB | 30 MB |
| Requires iOS | **9.0** | 15 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LUNDIN SOFTWARE SRL](https://appshunter.io/developer/1508584818) | [Roof Data Limited](https://appshunter.io/developer/1831153772) |

## What reviewers say

### Opus App

[App page](https://appshunter.io/ios/app/opus-app/id1555440529)

**Features:** macOS Compatibility

**In-app purchases:** none


### Authenticator App ․

[App page](https://appshunter.io/ios/app/authenticator-app/id6767821409)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GuardVault Weekly VIP | $5.99 | per 7 days |
| GuardVault Yearly VIP | $39.99 | per year |


## Frequently asked questions

### Is Opus App free?

Opus App 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 Opus App or Authenticator App ․ have ads?

Authenticator App ․ shows ads; Opus App does not.

### Which is updated more often, Opus App or Authenticator App ․?

Opus App ships an update every 2 months, and Authenticator App ․ every 2 months. Most recently, Opus App was updated on October 7, 2026 and Authenticator App ․ on October 9, 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.*