# Authenticator App vs Fill & Sign PDF Documents App

The clearest difference is review sentiment: Fill & Sign PDF Documents App at 100% against Authenticator App's 50%. Fill & Sign PDF Documents App also leads on monetization model (free with in-app purchases vs subscription) and rating (4.5 vs 4.1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Authenticator App sells 2 in-app purchases, starting at $6.99 per 7 days and Fill & Sign PDF Documents App sells 1 in-app purchase, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Fill & Sign PDF Documents App holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 9 and 11 respectively. Written reviews point the same way: 50% of Authenticator App's written reviews are positive against 100% of Fill & Sign PDF Documents App's.

Both ship on a similar rhythm, roughly daily. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Authenticator App | Fill & Sign PDF Documents App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (9 ratings)](https://appshunter.io/ios/app/authenticator-app-two-factor/id6642711356/reviews) | **[4.5 (11 ratings)](https://appshunter.io/ios/app/fill-and-sign-pdf-documents-app/id6677020973/reviews)** |
| Number of ratings | 9 | **11** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Daily | Daily |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 13 MB | 13 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Marvin Wimmer](https://appshunter.io/developer/1771470022) | [Jay Clauer](https://appshunter.io/developer/1844912065) |

## What reviewers say

### 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 |


### Fill & Sign PDF Documents App

[App page](https://appshunter.io/ios/app/fill-and-sign-pdf-documents-app/id6677020973)

Easily sign and import any document using your phone. Create your electronic signature with your finger and apply it to forms. This tool transforms your device into a powerful digital signing solution.

**Highlights:** Edit and fill out documents, Create electronic signatures, Sign documents easily, Import documents

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access to additional functions | $6.99 | per 7 days |


## Frequently asked questions

### Is Authenticator App free?

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

### Is Fill & Sign PDF Documents App free?

Fill & Sign PDF Documents App is free to download, with in-app purchases available.

### Which has better reviews, Authenticator App or Fill & Sign PDF Documents App?

Fill & Sign PDF Documents App is rated higher. Authenticator App averages 4.1 out of 5 from 9 ratings, while Fill & Sign PDF Documents App averages 4.5 from 11 ratings.

### Do Authenticator App or Fill & Sign PDF Documents App have ads?

Neither Authenticator App nor Fill & Sign PDF Documents App shows ads.

### Which is updated more often, Authenticator App or Fill & Sign PDF Documents App?

Authenticator App ships an update daily, and Fill & Sign PDF Documents App daily. Most recently, Authenticator App was updated on October 5, 2026 and Fill & Sign PDF Documents App on October 18, 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.*