# PDF Document Scanner vs Authenticator App

The clearest difference is ads: Authenticator App at none against PDF Document Scanner's shown. Authenticator App also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Document Scanner sells 1 one-off in-app purchase and Authenticator App sells 1 in-app purchase, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF Document Scanner ships an update every 2 months, Authenticator App fortnightly. The most recent releases landed on September 12, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | PDF Document Scanner | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/pdf-document-scanner/id953871026/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 45 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brandon Stecklein](https://appshunter.io/developer/498894252) | [天来 朱](https://appshunter.io/developer/1886716658) |

## What reviewers say

### PDF Document Scanner

[App page](https://appshunter.io/ios/app/pdf-document-scanner/id953871026)

Transform your device into a document creation studio. Easily scan paperwork, digitize photos, and assemble multi-page reports into clean, professional PDF files. Offers powerful editing tools and flexible PDF creation options for real-world use.

**Highlights:** Scan documents with device camera, Built-in image editor, Automatic or manual page ordering, Create single or multi-page PDFs, Import text files to PDF, Merge multiple projects, Export optimized PDFs

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advertising Removal | $7.99 | one-time |


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-and-otp-plus/id6761924233)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $9.99 | per 7 days |


## Frequently asked questions

### Is PDF Document Scanner free?

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

### Is Authenticator App free?

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

### Do PDF Document Scanner or Authenticator App have ads?

PDF Document Scanner shows ads; Authenticator App does not.

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

PDF Document Scanner ships an update every 2 months, and Authenticator App fortnightly. Most recently, PDF Document Scanner was updated on September 12, 2026 and Authenticator App on September 21, 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.*