# KS Key vs Authenticator App

The clearest difference is in-app purchases: KS Key at none against Authenticator App's 4. KS Key also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.6). On price and device support there is nothing between them.

Both are free to download. Authenticator App sells 4 in-app purchases, starting at $4.99 per 7 days. KS Key asks for nothing beyond the download.

## The numbers

| Metric | KS Key | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (9 ratings)](https://appshunter.io/ios/app/authenticator-app-otp-2fa/id6747989010/reviews)** |
| Number of ratings | — | **9** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 72 MB | 32 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Keysystems](https://appshunter.io/developer/648307797) | [Specter Apps Inc](https://appshunter.io/developer/6793483364) |

## What reviewers say

### KS Key

[App page](https://appshunter.io/ios/app/ks-key/id6737405726)

**Features:** macOS Compatibility

**In-app purchases:** none


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-otp-2fa/id6747989010)

Secure your online accounts with two-factor authentication and manage your passwords in one encrypted app. Generate strong passwords, organize credentials, and sync across devices with optional iCloud backup. Offers offline functionality and biometric access for enhanced privacy.

**Highlights:** Two-factor authentication token generation, Secure password management, QR code scanning for 2FA setup, Military-grade encryption, Offline functionality, Face ID/Passcode access, iCloud sync

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per 7 days |
| Premium | $4.99 | per 7 days |
| Premium | $19.99 | per year |
| Premium | $39.99 | per year |


## Frequently asked questions

### Is KS Key free?

KS Key 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 KS Key or Authenticator App have ads?

Authenticator App shows ads; KS Key does not.

---

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