# Authenticator App vs SoundLevel

The clearest difference is in-app purchases: SoundLevel at none against Authenticator App's 2. SoundLevel also leads on update cadence (daily vs weekly). Authenticator App's advantage is iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Authenticator App sells 2 in-app purchases, starting at $14.99 per year. SoundLevel asks for nothing beyond the download.

Authenticator App ships an update weekly, SoundLevel daily. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Authenticator App | SoundLevel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/authenticator-app-otp-and-2fa/id6502824774/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 5 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rayane Kurrimboccus](https://appshunter.io/developer/1689944594) | [9547-8715 QUEBEC INC.](https://appshunter.io/developer/1888514726) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-otp-and-2fa/id6502824774)

Securely store and generate two-factor authentication codes with end-to-end encryption. Syncs across all your Apple devices and offers offline access, making logins quick and easy.

**Highlights:** End-to-end encryption, iCloud sync across devices, Home Screen widget, Offline code generation, Easy import from other apps, Supports all popular services, Advanced OTP options

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version - Yearly | $14.99 | per year |
| Pro version - Lifetime | $34.99 | one-time |


### SoundLevel

[App page](https://appshunter.io/ios/app/soundlevel-noise-estimate/id6790220729)

**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 SoundLevel free?

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

### Do Authenticator App or SoundLevel have ads?

Neither Authenticator App nor SoundLevel shows ads.

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

Authenticator App ships an update weekly, and SoundLevel daily. Most recently, Authenticator App was updated on November 4, 2026 and SoundLevel on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*