# CUDIS vs Auth Authenticator

The clearest difference is rating: Auth Authenticator at 4.9 against CUDIS's 4.1. Auth Authenticator also leads on review sentiment (100% vs 86%). CUDIS's advantage is in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 5 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Auth Authenticator sells 2 in-app purchases, starting at $6.99 per 7 days. CUDIS asks for nothing beyond the download.

Auth Authenticator holds the better App Store score, 4.9 against 4.1. Both are backed by a comparable volume of ratings — 56 and 28 respectively. Written reviews point the same way: 86% of CUDIS's written reviews are positive against 100% of Auth Authenticator's.

CUDIS ships an update every 2 weeks, Auth Authenticator every 5 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | CUDIS | Auth Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (56 ratings)](https://appshunter.io/ios/app/cudis/id6479181363/reviews) | **[4.9 (28 ratings)](https://appshunter.io/ios/app/auth-authenticator-2fa-and-mfa/id6742376474/reviews)** |
| Number of ratings | **56** | 28 |
| Positive reviews | 85.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 156 MB | 105 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [BeatBit Inc.](https://appshunter.io/developer/1732859129) | [Enveloc, Inc](https://appshunter.io/developer/6785535852) |

## What reviewers say

### CUDIS

[App page](https://appshunter.io/ios/app/cudis/id6479181363)

This app connects to an AI smart ring that tracks your longevity journey. It provides insights and rewards for healthy living. The app emphasizes that it is not a medical device and users should consult healthcare professionals.

**Highlights:** Manage AI smart ring, Track longevity journey, Receive rewards, Health insights, Connects to smart ring hardware

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

**In-app purchases:** none


### Auth Authenticator

[App page](https://appshunter.io/ios/app/auth-authenticator-2fa-and-mfa/id6742376474)

Secure your accounts with advanced two-factor authentication and biometric protection. This app provides instant access to OTP codes, syncs across devices, and allows for easy QR code generation. It offers robust security features with a sleek, intuitive interface.

**Highlights:** End-to-end encryption, Biometric lock (Face ID), Instant OTP code access, Cross-device sync (iPhone, iCloud, Watch), Home screen widgets, QR code generation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $6.99 | per 7 days |
| Monthly | $19.99 | per month |


## Frequently asked questions

### Is CUDIS free?

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

### Is Auth Authenticator free?

Auth Authenticator is free to download, with in-app purchases available.

### Which has better reviews, CUDIS or Auth Authenticator?

Auth Authenticator is rated higher. CUDIS averages 4.1 out of 5 from 56 ratings, while Auth Authenticator averages 4.9 from 28 ratings.

### Do CUDIS or Auth Authenticator have ads?

Neither CUDIS nor Auth Authenticator shows ads.

### Which is updated more often, CUDIS or Auth Authenticator?

CUDIS ships an update every 2 weeks, and Auth Authenticator every 5 weeks. Most recently, CUDIS was updated on October 30, 2026 and Auth Authenticator on October 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.*