# PDF Scanner vs Authenticator

The clearest difference is update cadence: PDF Scanner at every 11 days against Authenticator's monthly. PDF Scanner also leads on iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Scanner sells 2 in-app purchases, starting at $4.99 per 7 days and 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.

PDF Scanner ships an update every 11 days, Authenticator monthly. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PDF Scanner | Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 49 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [QUYEN NGUYEN](https://appshunter.io/developer/988288907) | [Huong Dang](https://appshunter.io/developer/1896285075) |

## What reviewers say

### PDF Scanner

[App page](https://appshunter.io/ios/app/pdf-scanner-read-and-sign/id6469477285)

Transform your device into a portable scanner to convert documents and images into PDF or JPG files. Easily edit, sign, and organize your PDFs with offline capabilities and quick sharing options.

**Highlights:** Scan documents and photos, Convert images to PDF, Edit PDF files, Insert signatures and text, Split PDF files, Work offline, Share converted files

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wearly Premium Access | $4.99 | per 7 days |
| Yearly Premium Access | $24.99 | per year |


### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-2fa-and-vault/id6809136121)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $6.99 | per 7 days |
| Yearly Premium Access | $39.99 | per year |


## Frequently asked questions

### Is PDF Scanner free?

PDF Scanner is free to download, with in-app purchases available.

### Is Authenticator free?

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

### Do PDF Scanner or Authenticator have ads?

Both PDF Scanner and Authenticator show ads.

### Which is updated more often, PDF Scanner or Authenticator?

PDF Scanner ships an update every 11 days, and Authenticator monthly. Most recently, PDF Scanner was updated on October 12, 2026 and Authenticator on October 25, 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.*