# Authenticator vs OTIS Solutions

The clearest difference is update cadence: Authenticator at every 9 days against OTIS Solutions's every 3 months. OTIS Solutions's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Authenticator sells 3 in-app purchases, starting at $9.99 per 7 days and OTIS Solutions sells 3 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Authenticator ships an update every 9 days, OTIS Solutions every 3 months. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Authenticator | OTIS Solutions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (13 ratings)](https://appshunter.io/ios/app/authenticator-shield-app/id6756226303/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 26 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NOOX MEDIA LTD](https://appshunter.io/developer/1836916041) | [Athram Studios Inc](https://appshunter.io/developer/6775643632) |

## What reviewers say

### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-shield-app/id6756226303)

This app generates secure, time-based one-time passwords for your online accounts. It features a privacy-focused design with local storage and optional biometric protection. Easily set up accounts by scanning QR codes or manually entering details.

**Highlights:** Time-based one-time passwords (TOTP), Secure local storage with iOS Keychain, QR code scanner for setup, Optional Face ID / Touch ID lock, No ads or tracking, Offline functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $9.99 | per 7 days |
| Weekly subscription noTrial | $9.99 | per 7 days |
| Yearly Subscription | $59.99 | per year |


### OTIS Solutions

[App page](https://appshunter.io/ios/app/otis-solutions/id6775643630)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OTIS Pro | $19.99 | per month |
| OTIS Operations | $109.99 | per month |
| OTIS Solutions | $199.99 | per year |


## Frequently asked questions

### Is Authenticator free?

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

### Is OTIS Solutions free?

OTIS Solutions is free to download, with in-app purchases available.

### Do Authenticator or OTIS Solutions have ads?

Neither Authenticator nor OTIS Solutions shows ads.

### Which is updated more often, Authenticator or OTIS Solutions?

Authenticator ships an update every 9 days, and OTIS Solutions every 3 months. Most recently, Authenticator was updated on October 4, 2026 and OTIS Solutions on October 6, 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.*