# Smart Invoice vs 2FA Authenticator

The clearest difference is ads: 2FA Authenticator at none against Smart Invoice's shown. 2FA Authenticator also leads on update cadence (fortnightly vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Smart Invoice sells 2 in-app purchases, starting at $6.99 per 7 days and 2FA Authenticator sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Smart Invoice ships an update every 3 months, 2FA Authenticator fortnightly. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Smart Invoice | 2FA Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/2fa-authenticator-all-in-one/id6758393614/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 63 MB | 192 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [CW Lee](https://appshunter.io/developer/1468639016) | [HYPERLINK INFOSYSTEM INC.](https://appshunter.io/developer/1790870293) |

## What reviewers say

### Smart Invoice

[App page](https://appshunter.io/ios/app/smart-invoice/id1516600182)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $6.99 | per 7 days |
| Annually Subscription | $69.99 | per year |


### 2FA Authenticator

[App page](https://appshunter.io/ios/app/2fa-authenticator-all-in-one/id6758393614)

Enhance your digital security with two-factor authentication. This app generates codes to protect your accounts, even if your password is compromised. It offers a simple interface, universal integrations, and encrypted password storage for a hassle-free, secure login experience.

**Highlights:** Two-factor authentication code generation, Universal platform integration, Encrypted password bank, App lock with FaceID/TouchID/passcode, Unlimited account generation, Secure import and export

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $6.99 | per 7 days |
| Monthly Plan | $19.99 | per month |


## Frequently asked questions

### Is Smart Invoice free?

Smart Invoice is free to download, with in-app purchases available.

### Is 2FA Authenticator free?

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

### Do Smart Invoice or 2FA Authenticator have ads?

Smart Invoice shows ads; 2FA Authenticator does not.

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

Smart Invoice ships an update every 3 months, and 2FA Authenticator fortnightly. Most recently, Smart Invoice was updated on October 4, 2026 and 2FA Authenticator on October 24, 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.*