# Acrobat Reader vs Fill & Sign PDF Documents App

Acrobat Reader and Fill & Sign PDF Documents App both sit at 4.6 stars, but that hides the real split: 100% of Fill & Sign PDF Documents App's written reviews are positive against 49% of Acrobat Reader's. Fill & Sign PDF Documents App also leads on update cadence (daily vs every 9 days) and iOS requirement (16.0 vs 18.3). Acrobat Reader's advantage is ratings volume (654K vs 11) and chart position (#2 vs unranked). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Acrobat Reader sells 16 in-app purchases, starting at $3.99 per month 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.

On the App Store both sit at effectively the same score — 4.6 for Acrobat Reader against 4.5 for Fill & Sign PDF Documents App. That said, the two scores are not equally well evidenced: Acrobat Reader has 654K ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 49% of Acrobat Reader's written reviews are positive against 100% of Fill & Sign PDF Documents App's.

Acrobat Reader ships an update every 9 days, Fill & Sign PDF Documents App daily. The most recent releases landed on September 25, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Acrobat Reader | Fill & Sign PDF Documents App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (654K ratings)](https://appshunter.io/ios/app/acrobat-reader-pdf-editor/id469337564/reviews)** | [4.5 (11 ratings)](https://appshunter.io/ios/app/fill-and-sign-pdf-documents-app/id6677020973/reviews) |
| Number of ratings | **654K** | 11 |
| Positive reviews | 49.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Daily** |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | **#2** | — |
| Size | 522 MB | 13 MB |
| Requires iOS | 18.3 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Adobe Inc.](https://appshunter.io/developer/331646274) | [Jay Clauer](https://appshunter.io/developer/1844912065) |

## What reviewers say

### Acrobat Reader

[App page](https://appshunter.io/ios/app/acrobat-reader-pdf-editor/id469337564)

**Currently charting:** #2 Top Grossing · Business, #13 Top Free · Business, #80 Top Grossing, #203 Top Free (US App Store)

This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.

**Highlights:** View, edit, and annotate PDFs, Sign and fill PDF forms, Convert files to and from PDF, AI-powered document summarization, Collaborate in PDF Spaces, Compress and secure PDFs, Optical Character Recognition (OCR)

**Features:** iMessage stickers, Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Acrobat Premium - Monthly | $3.99 | per month |
| Adobe Acrobat Premium | $4.99 | per month |
| AI Assistant for Acrobat | $6.99 | per month |
| Acrobat Premium | $7.49 | per 7 days |
| Acrobat Premium - Monthly | $9.99 | per month |
| Acrobat Premium - Weekly | $9.99 | per 7 days |
| PDF Pack - Doc Creator | $9.99 | per month |
| Premium - Edit & Create PDF | $9.99 | per month |
| PDF Edit and Convert Monthly | $12.99 | per month |
| Acrobat Premium - Monthly | $12.99 | per month |
| Acrobat Premium - Monthly | $14.99 | per month |
| Acrobat Reader Plus - Yearly | $19.99 | per year |
| Adobe ExportPDF | $23.99 | per year |
| Adobe Acrobat Pro | $24.99 | per month |
| Acrobat Premium - Yearly | $48.99 | per year |
| Acrobat Premium - Yearly | $69.99 | per year |

**What reviewers like**

- 🚀 Fast and efficient
- 🔒 Secure document storage
- 👍 Convenient for reading and annotating PDFs
- 👍 Useful for students and professionals

**What reviewers complain about**

- 🐛 Buggy and unreliable
- 🔒 Overly intrusive login requirements
- 💰 Expensive subscription model
- 👎 Counterintuitive user interface changes
- 🔍 Poor search and organization features

**Reported bugs**

- Frequent crashes and freezes
- Inconsistent behavior when editing PDFs
- Inability to open or save certain file types
- Sync issues between mobile and desktop versions

**Requested features**

- Add erase tool for annotations
- Improve palm rejection for Apple Pencil
- Allow direct text editing in PDFs
- Provide better cloud integration and sync
- Offer more customization options


### 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 Acrobat Reader free?

Acrobat Reader 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, Acrobat Reader or Fill & Sign PDF Documents App?

Acrobat Reader is rated higher. Acrobat Reader averages 4.6 out of 5 from 654K ratings, while Fill & Sign PDF Documents App averages 4.5 from 11 ratings.

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

Neither Acrobat Reader nor Fill & Sign PDF Documents App shows ads.

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

Acrobat Reader ships an update every 9 days, and Fill & Sign PDF Documents App daily. Most recently, Acrobat Reader was updated on September 25, 2026 and Fill & Sign PDF Documents App on September 14, 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.*