# Authentication App vs Authenticate By KDC

The clearest difference is in-app purchases: Authenticate By KDC at none against Authentication App's 2. Authentication App's advantage is iOS requirement (14.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Authentication App sells 2 in-app purchases, starting at $9.99 per month. Authenticate By KDC asks for nothing beyond the download.

Authentication App ships an update every 2 months, Authenticate By KDC every 5 weeks. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Authentication App | Authenticate By KDC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (592 ratings)](https://appshunter.io/ios/app/authentication-app-mfa-totp/id6443597953/reviews)** | — |
| Number of ratings | **592** | — |
| Positive reviews | 74.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Freemium | — |
| Size | 66 MB | 4 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Soufiane Benabid](https://appshunter.io/developer/938808835) | [Kenneth Lovett](https://appshunter.io/developer/1831085892) |

## What reviewers say

### Authentication App

[App page](https://appshunter.io/ios/app/authentication-app-mfa-totp/id6443597953)

Enhance your online account security with this two-factor authentication utility. Easily add accounts by scanning QR codes or entering details manually. Securely back up and sync your data with iCloud Keychain for device loss or upgrades.

**Highlights:** Two-factor authentication (2FA), QR code scanning for account setup, Manual account detail entry, Secure backup and sync with iCloud Keychain, Password and Face ID lock, Multi-device sync

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authentificator - Monthly | $9.99 | per month |
| Authentificator - Yearly | $39.99 | per year |

**What reviewers like**

- 👍 Easy to use and user-friendly interface
- 🔒 Reliable authentication functionality
- ⭐ Excellent overall performance
- 😊 Smooth and stress-free experience
- 💯 Best-in-class authenticator app

**What reviewers complain about**

- 🐛 App doesn't work reliably
- 💰 High pricing relative to competitors
- 😕 Confusing for some users
- ⚠️ Account loss issues reported

**Reported bugs**

- App fails to function properly for some users
- Account data loss or inaccessibility
- Inconsistent performance across devices

**Requested features**

- Better account recovery options
- Improved user onboarding/documentation


### Authenticate By KDC

[App page](https://appshunter.io/ios/app/authenticate-by-kdc/id6751268798)

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

**In-app purchases:** none


## Frequently asked questions

### Is Authentication App free?

Authentication App is free to download, with in-app purchases available.

### Is Authenticate By KDC free?

Authenticate By KDC is free to download, with no in-app purchases.

### Do Authentication App or Authenticate By KDC have ads?

Neither Authentication App nor Authenticate By KDC shows ads.

### Which is updated more often, Authentication App or Authenticate By KDC?

Authentication App ships an update every 2 months, and Authenticate By KDC every 5 weeks. Most recently, Authentication App was updated on September 28, 2026 and Authenticate By KDC on September 30, 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.*