# Authenticator App . vs Sign Documents & Doc Scanner

The clearest difference is update cadence: Sign Documents & Doc Scanner at every 2 days against Authenticator App .'s every 3 weeks. Sign Documents & Doc Scanner also leads on rating (4.9 vs 4.5). Authenticator App .'s advantage is ratings volume (62 vs 7) and iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Authenticator App . sells 3 in-app purchases, starting at $7.99 per 7 days and Sign Documents & Doc Scanner sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sign Documents & Doc Scanner holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Authenticator App . has 62 ratings behind it against 7, so its average is the more settled of the two.

Authenticator App . ships an update every 3 weeks, Sign Documents & Doc Scanner every 2 days. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Authenticator App . | Sign Documents & Doc Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (62 ratings)](https://appshunter.io/ios/app/authenticator-app/id6751029981/reviews) | **[4.9 (7 ratings)](https://appshunter.io/ios/app/sign-documents-and-doc-scanner/id6752650359/reviews)** |
| Number of ratings | **62** | 7 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 69 MB | 20 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [CIPHER CORE LIMITED](https://appshunter.io/developer/1833181976) | [Chan Tai](https://appshunter.io/developer/1851399897) |

## What reviewers say

### Authenticator App .

[App page](https://appshunter.io/ios/app/authenticator-app/id6751029981)

Create, manage, and share a professional digital business presence. Capture leads, protect data, and connect faster with a customizable digital card and AI-powered scanner. Enhance security with an additional authentication layer.

**Highlights:** Customizable digital business card creation, AI-powered business card scanner, Two-factor authentication, Contact card management, QR code sharing, Sync and backup across devices

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator 1 Week Premium | $7.99 | per 7 days |
| Authenticator 1 Year Premium | $49.99 | per year |
| Authenticator 1 Year Premium | $49.99 | per year |


### Sign Documents & Doc Scanner

[App page](https://appshunter.io/ios/app/sign-documents-and-doc-scanner/id6752650359)

Streamline document management with powerful PDF tools and electronic signature capabilities. Sign contracts, edit PDFs, scan documents, and secure sensitive information on the go. Transform your workflow and eliminate paper-based processes.

**Highlights:** Legally-binding electronic signatures, Advanced PDF editing, High-quality document scanning, PDF to Office format conversion, Password protection and biometric locking, Intelligent form filling

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sign Documents Weekly Sale | $4.99 | per 7 days |
| Sign Documents Weekly | $6.99 | per 7 days |
| Sign Documents Monthly | $17.99 | per month |


## Frequently asked questions

### Is Authenticator App . free?

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

### Is Sign Documents & Doc Scanner free?

Sign Documents & Doc Scanner is free to download, with in-app purchases available.

### Which has better reviews, Authenticator App . or Sign Documents & Doc Scanner?

Sign Documents & Doc Scanner is rated higher. Authenticator App . averages 4.5 out of 5 from 62 ratings, while Sign Documents & Doc Scanner averages 4.9 from 7 ratings.

### Do Authenticator App . or Sign Documents & Doc Scanner have ads?

Neither Authenticator App . nor Sign Documents & Doc Scanner shows ads.

### Which is updated more often, Authenticator App . or Sign Documents & Doc Scanner?

Authenticator App . ships an update every 3 weeks, and Sign Documents & Doc Scanner every 2 days. Most recently, Authenticator App . was updated on October 8, 2026 and Sign Documents & Doc Scanner on October 10, 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.*