# Authenticator vs Cam Scan for PDF Scanner

The clearest difference is in-app purchases: Cam Scan for PDF Scanner at none against Authenticator's 4. Cam Scan for PDF Scanner also leads on ratings volume (8.2K vs 181) and update cadence (every 5 days vs every 3 weeks). Authenticator's advantage is ads (none vs shown). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. Authenticator sells 4 in-app purchases, starting at $1.99 per 7 days. Cam Scan for PDF Scanner asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Authenticator against 4.6 for Cam Scan for PDF Scanner. That said, the two scores are not equally well evidenced: Cam Scan for PDF Scanner has 8.2K ratings behind it against 181, so its average is the more settled of the two.

Authenticator ships an update every 3 weeks, Cam Scan for PDF Scanner every 5 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Authenticator | Cam Scan for PDF Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (181 ratings)](https://appshunter.io/ios/app/authenticator-2fa-otp-codes/id6740751083/reviews) | **[4.6 (8.2K ratings)](https://appshunter.io/ios/app/cam-scan-for-pdf-scanner/id6746765658/reviews)** |
| Number of ratings | 181 | **8.2K** |
| Positive reviews | 26.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Freemium | **Ad-supported** |
| Size | 32 MB | 50 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arpit Kakadiya](https://appshunter.io/developer/1779328825) | [Bhartiben Davra](https://appshunter.io/developer/1818394757) |

## What reviewers say

### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-2fa-otp-codes/id6740751083)

Secure your online accounts with this app, offering robust two-factor authentication (2FA) and time-based one-time password (TOTP) generation. It provides advanced security features like end-to-end encryption, privacy mode, and break-in alerts, alongside convenient multi-device sync and quick QR code scanning for effortless account protection across all your Apple devices.

**Highlights:** Time-based one-time password (TOTP) generation, End-to-end encryption for codes, Privacy Mode to hide codes, Break-in alerts for unauthorized access attempts, Multi-device sync across Apple ecosystem, Quick QR code scanning for account setup, Lock screen widgets for instant access

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Annual | $19.99 | per year |
| Lifetime | $39.99 | one-time |

**What reviewers like**

- 👍 Working app after latest update
- 👍 Lifetime subscription working

**What reviewers complain about**

- 🐛 Lifetime purchase option not working
- 🐛 Subscription issue after lifetime purchase
- 🔒 Lack of transparency and false information
- 🚫 Deceptive free lifetime offer

**Reported bugs**

- Lifetime purchase option not working
- Subscription issue after lifetime purchase
- Lifetime offer not working

**Requested features**

- Generate QR code for existing accounts


### Cam Scan for PDF Scanner

[App page](https://appshunter.io/ios/app/cam-scan-for-pdf-scanner/id6746765658)

This app allows you to scan documents, QR codes, and barcodes with ease. Create digital signatures and manage your scanned files efficiently. It's designed for speed, clarity, and simplicity for everyday users.

**Highlights:** Document scanning to PDF, QR and barcode scanning, Digital signature creation, File organization and sharing, Offline functionality, No watermarks or scan limits

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator free?

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

### Is Cam Scan for PDF Scanner free?

Cam Scan for PDF Scanner is free to download, with no in-app purchases.

### Which has better reviews, Authenticator or Cam Scan for PDF Scanner?

Cam Scan for PDF Scanner is rated higher. Authenticator averages 4.4 out of 5 from 181 ratings, while Cam Scan for PDF Scanner averages 4.6 from 8.2K ratings.

### Do Authenticator or Cam Scan for PDF Scanner have ads?

Cam Scan for PDF Scanner shows ads; Authenticator does not.

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

Authenticator ships an update every 3 weeks, and Cam Scan for PDF Scanner every 5 days. Most recently, Authenticator was updated on October 28, 2026 and Cam Scan for PDF Scanner on October 31, 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.*