# G vs Authenticator 2FA

The clearest difference is in-app purchases: G at none against Authenticator 2FA's 5. G also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Authenticator 2FA sells 5 in-app purchases, starting at $3.99 per 7 days. G asks for nothing beyond the download.

G ships an update every 3 weeks, Authenticator 2FA monthly. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | G | Authenticator 2FA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 40 MB | 37 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Duong Hai](https://appshunter.io/developer/1153393386) | [Abdullah Khan](https://appshunter.io/developer/1734625924) |

## What reviewers say

### G

[App page](https://appshunter.io/ios/app/g-erp/id1619338489)

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

**In-app purchases:** none


### Authenticator 2FA

[App page](https://appshunter.io/ios/app/authenticator-2fa-otp/id6758774364)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Weekly | $9.99 | per 7 days |
| Week | $9.99 | per 7 days |
| Monthly | $9.99 | per month |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is G free?

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

### Is Authenticator 2FA free?

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

### Do G or Authenticator 2FA have ads?

Neither G nor Authenticator 2FA shows ads.

### Which is updated more often, G or Authenticator 2FA?

G ships an update every 3 weeks, and Authenticator 2FA monthly. Most recently, G was updated on October 7, 2026 and Authenticator 2FA on October 16, 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.*