# TrustID Authenticator vs SmartDog

The clearest difference is ads: TrustID Authenticator at none against SmartDog's shown. SmartDog's advantage is update cadence (fortnightly vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

TrustID Authenticator ships an update every 6 weeks, SmartDog fortnightly. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | TrustID Authenticator | SmartDog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/trustid-authenticator/id1467907374/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 97 MB | 98 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ELCA Informatik AG](https://appshunter.io/developer/472704075) | [Alec Pavone](https://appshunter.io/developer/1780308121) |

## What reviewers say

### TrustID Authenticator

[App page](https://appshunter.io/ios/app/trustid-authenticator/id1467907374)

Secure your accounts with two-factor authentication. Confirm sign-ins via push notifications or use offline mode if unavailable. Your sensitive data is stored securely on your device.

**Highlights:** Two-factor authentication, Secure on-device data storage, Push notification confirmation, Offline mode for sign-ins, Biometric or PIN protection

**Features:** Vision Pro support

**In-app purchases:** none


### SmartDog

[App page](https://appshunter.io/ios/app/smartdog/id6738345990)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is TrustID Authenticator free?

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

### Is SmartDog free?

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

### Do TrustID Authenticator or SmartDog have ads?

SmartDog shows ads; TrustID Authenticator does not.

### Which is updated more often, TrustID Authenticator or SmartDog?

TrustID Authenticator ships an update every 6 weeks, and SmartDog fortnightly. Most recently, TrustID Authenticator was updated on October 7, 2026 and SmartDog 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.*