# GTCApp vs Authenticator App －Secure

The clearest difference is in-app purchases: GTCApp at none against Authenticator App －Secure's 2. GTCApp also leads on iOS requirement (13.0 vs 26.0). Authenticator App －Secure's advantage is update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Authenticator App －Secure sells 2 in-app purchases, starting at $9.99 per 7 days. GTCApp asks for nothing beyond the download.

GTCApp ships an update every 4 months, Authenticator App －Secure monthly. Both last shipped on September 28, 2026.

## The numbers

| Metric | GTCApp | Authenticator App －Secure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/authenticator-app-secure/id6760113236/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Subscription |
| Size | 11 MB | 24 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ingeniørfirmaet Poul Tarp A/S](https://appshunter.io/developer/970385837) | [Next Flow GmbH](https://appshunter.io/developer/1882697324) |

## What reviewers say

### GTCApp

[App page](https://appshunter.io/ios/app/gtcapp/id970385838)

**In-app purchases:** none


### Authenticator App －Secure

[App page](https://appshunter.io/ios/app/authenticator-app-secure/id6760113236)

Secure your digital life with this advanced security utility. It offers tools for instant account setup, password management, and offline code generation for safe and private logins. Features include encryption, cloud sync, and auto-fill for a streamlined experience.

**Highlights:** QR scanner for instant account setup, Password manager and secure vault, Backup code storage, Customizable home screen widgets, 2FA/MFA/OTP code generation, Private browser, Encryption and cloud sync, Auto-fill for logins

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $9.99 | per 7 days |
| Pro Year | $44.99 | per year |


## Frequently asked questions

### Is GTCApp free?

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

### Is Authenticator App －Secure free?

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

### Do GTCApp or Authenticator App －Secure have ads?

Neither GTCApp nor Authenticator App －Secure shows ads.

### Which is updated more often, GTCApp or Authenticator App －Secure?

GTCApp ships an update every 4 months, and Authenticator App －Secure monthly. Most recently, GTCApp was updated on September 28, 2026 and Authenticator App －Secure on September 28, 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.*