# GridDuck Installer vs 2FA QR Authenticator

The clearest difference is in-app purchases: GridDuck Installer at none against 2FA QR Authenticator's 3. GridDuck Installer also leads on iOS requirement (12.4 vs 17.6). 2FA QR Authenticator's advantage is update cadence (every 2 weeks vs monthly). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. 2FA QR Authenticator sells 3 in-app purchases, starting at $3.99 per month. GridDuck Installer asks for nothing beyond the download.

GridDuck Installer ships an update monthly, 2FA QR Authenticator every 2 weeks. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | GridDuck Installer | 2FA QR Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 86 MB |
| Requires iOS | **12.4** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DuckDuck LTD](https://appshunter.io/developer/1556050618) | [Mikhail Andrewywvich Chekalin](https://appshunter.io/developer/1802495786) |

## What reviewers say

### GridDuck Installer

[App page](https://appshunter.io/ios/app/gridduck-installer/id1556050616)

This utility simplifies the setup of GridDuck Hardware, allowing users to add new hubs and devices, upload reference files, and create detailed site audits. It serves as a comprehensive tool for documenting installations and site conditions.

**Highlights:** Add new hubs and devices, Upload reference photos and files, Create site audits, Document install success, Record site issues

**Features:** macOS Compatibility

**In-app purchases:** none


### 2FA QR Authenticator

[App page](https://appshunter.io/ios/app/2fa-qr-authenticatorauthguard/id6749512493)

Secure your online accounts with bank-level two-factor authentication codes. This app offers offline code generation, a fast QR scanner for setup, and robust encryption. It prioritizes user privacy with no tracking or ads, and offers optional iCloud sync for seamless cross-device access.

**Highlights:** Two-factor authentication (2FA, TOTP, OTP), Offline code generation, Fast QR code scanner, Bank-grade AES-256 encryption, iCloud backup & sync, Password-protected folders, Face ID / Touch ID & PIN protection

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $3.99 | per month |
| Annual Premium | $14.99 | per year |
| Lifetime Premium | $39.99 | one-time |


## Frequently asked questions

### Is GridDuck Installer free?

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

### Is 2FA QR Authenticator free?

2FA QR Authenticator is free to download, with in-app purchases available.

### Do GridDuck Installer or 2FA QR Authenticator have ads?

Neither GridDuck Installer nor 2FA QR Authenticator shows ads.

### Which is updated more often, GridDuck Installer or 2FA QR Authenticator?

GridDuck Installer ships an update monthly, and 2FA QR Authenticator every 2 weeks. Most recently, GridDuck Installer was updated on October 6, 2026 and 2FA QR Authenticator on October 12, 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.*