# Chat pdf vs Authenticator App

Chat pdf and Authenticator App both sit at 4.2 stars, but that hides the real split: 50% of Authenticator App's written reviews are positive against 0% of Chat pdf's. Authenticator App also leads on update cadence (daily vs every 2 weeks). Chat pdf's advantage is monetization model (freemium vs subscription) and device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Chat pdf sells 3 in-app purchases, starting at $7.99 per 7 days and Authenticator App sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.2 for Chat pdf against 4.1 for Authenticator App. Both are backed by a comparable volume of ratings — 23 and 9 respectively. Written reviews are what separate them: 0% of Chat pdf's written reviews are positive against 50% of Authenticator App's.

Chat pdf ships an update every 2 weeks, Authenticator App daily. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Chat pdf | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (23 ratings)](https://appshunter.io/ios/app/chat-pdf-askpdf-chatpdf/id6462723046/reviews)** | [4.1 (9 ratings)](https://appshunter.io/ios/app/authenticator-app-two-factor/id6642711356/reviews) |
| Number of ratings | **23** | 9 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | **Freemium** | Subscription |
| Size | 27 MB | 13 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Warrance Tougas](https://appshunter.io/developer/1653824945) | [Marvin Wimmer](https://appshunter.io/developer/1771470022) |

## What reviewers say

### Chat pdf

[App page](https://appshunter.io/ios/app/chat-pdf-askpdf-chatpdf/id6462723046)

Transform your documents into interactive conversations. Upload PDFs and other files to ask questions, get summaries, and find information quickly. Save time and boost productivity by engaging directly with your content.

**Highlights:** Interactive document conversations, Ask questions about PDFs, Get document summaries, Find specific information, Boost productivity, Supports various document files

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AskPDF Unlimited | $7.99 | per 7 days |
| AskPDF Unlimited | $19.99 | per month |
| AskPDF Unlimited | $89.99 | per year |


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-two-factor/id6642711356)

Transform your living spaces with AI-powered design tools. Upload a room photo, select a style, and see instant real-time transformations. Explore endless customization and save your favorite creations.

**Highlights:** Instant room transformation, AI-powered design suggestions, Variety of design styles, Save and share designs, User-friendly interface, Explore design trends

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $6.99 | per 7 days |
| Weekly | $6.99 | per 7 days |


## Frequently asked questions

### Is Chat pdf free?

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

### Is Authenticator App free?

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

### Which has better reviews, Chat pdf or Authenticator App?

Chat pdf is rated higher. Chat pdf averages 4.2 out of 5 from 23 ratings, while Authenticator App averages 4.1 from 9 ratings.

### Do Chat pdf or Authenticator App have ads?

Neither Chat pdf nor Authenticator App shows ads.

### Which is updated more often, Chat pdf or Authenticator App?

Chat pdf ships an update every 2 weeks, and Authenticator App daily. Most recently, Chat pdf was updated on September 29, 2026 and Authenticator App on October 5, 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.*