# Thetis Authenticator vs Password Studio

The clearest difference is rating: Password Studio at 5.0 against Thetis Authenticator's 3.5. Password Studio also leads on update cadence (every 4 days vs every 9 months). Thetis Authenticator's advantage is ratings volume (4 vs 1) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Password Studio holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Thetis Authenticator ships an update every 9 months, Password Studio every 4 days. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Thetis Authenticator | Password Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/thetis-authenticator/id6648759010/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/password-studio/id6791386169/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 3 MB | 6 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Razzo Tech Corporation](https://appshunter.io/developer/1566501237) | [Ananke Tech LLC](https://appshunter.io/developer/6780282750) |

## What reviewers say

### Thetis Authenticator

[App page](https://appshunter.io/ios/app/thetis-authenticator/id6648759010)

Manage your FIDO2 security keys for passwordless login and two-factor authentication. Supports NFC and Type-C connections for seamless integration across devices. Offers one-time password management for services not yet supporting FIDO2.

**Highlights:** FIDO2 passwordless login, Enhanced two-factor authentication, One-time password management, Optimized for iPad, NFC and Type-C compatibility, Cross-platform support, Phishing-resistant authentication

**In-app purchases:** none


### Password Studio

[App page](https://appshunter.io/ios/app/password-studio/id6791386169)

Effortlessly generate strong, memorable passwords and passphrases using custom words or curated lists. Offers three generation modes and extensive customization options for length, characters, and symbols. Prioritizes privacy with on-device generation and no account or cloud storage.

**Highlights:** Three password generation modes, Customizable password length and characters, Memorable passphrase generation, Real-time password strength indicator, One-tap copy to clipboard, On-device privacy, Modern, simple interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Thetis Authenticator free?

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

### Is Password Studio free?

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

### Which has better reviews, Thetis Authenticator or Password Studio?

Password Studio is rated higher. Thetis Authenticator averages 3.5 out of 5 from 4 ratings, while Password Studio averages 5.0 from 1 ratings.

### Do Thetis Authenticator or Password Studio have ads?

Neither Thetis Authenticator nor Password Studio shows ads.

### Which is updated more often, Thetis Authenticator or Password Studio?

Thetis Authenticator ships an update every 9 months, and Password Studio every 4 days. Most recently, Thetis Authenticator was updated on October 10, 2026 and Password Studio on October 13, 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.*