# Westlab vs Thetis Authenticator

Westlab and Thetis Authenticator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Westlab ships an update every 7 months, Thetis Authenticator every 9 months. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Westlab | Thetis Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/thetis-authenticator/id6648759010/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 9 months |
| Monetization | — | Free |
| Size | 132 MB | 3 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AltiPeak SA](https://appshunter.io/developer/963601765) | [Razzo Tech Corporation](https://appshunter.io/developer/1566501237) |

## What reviewers say

### Westlab

[App page](https://appshunter.io/ios/app/westlab/id1457272244)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Westlab free?

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

### Is Thetis Authenticator free?

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

### Do Westlab or Thetis Authenticator have ads?

Neither Westlab nor Thetis Authenticator shows ads.

### Which is updated more often, Westlab or Thetis Authenticator?

Westlab ships an update every 7 months, and Thetis Authenticator every 9 months. Most recently, Westlab was updated on October 17, 2026 and Thetis Authenticator on October 10, 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.*