# Adobe Acrobat Sign vs pdfFiller

The clearest difference is rating: pdfFiller at 4.5 against Adobe Acrobat Sign's 2.2. pdfFiller also leads on update cadence (fortnightly vs every 2 months) and ratings volume (9.1K vs 646). Adobe Acrobat Sign's advantage is in-app purchases (none vs 12). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. pdfFiller sells 10 in-app purchases, starting at $19.99 per month. Adobe Acrobat Sign asks for nothing beyond the download.

pdfFiller holds the better App Store score, 4.5 against 2.2. That said, the two scores are not equally well evidenced: pdfFiller has 9.1K ratings behind it against 646, so its average is the more settled of the two. Written reviews point the same way: 11% of Adobe Acrobat Sign's written reviews are positive against 20% of pdfFiller's.

Adobe Acrobat Sign ships an update every 2 months, pdfFiller fortnightly. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Adobe Acrobat Sign | pdfFiller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (646 ratings)](https://appshunter.io/ios/app/adobe-acrobat-sign/id481082197/reviews) | **[4.5 (9.1K ratings)](https://appshunter.io/ios/app/pdffiller-edit-pdf-documents/id571613512/reviews)** |
| Number of ratings | 646 | **9.1K** |
| Positive reviews | 10.9% of reviews | **20.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#48** |
| Size | 140 MB | 178 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Adobe Inc.](https://appshunter.io/developer/331646274) | [airSlate, Inc.](https://appshunter.io/developer/565493707) |

## What reviewers say

### Adobe Acrobat Sign

[App page](https://appshunter.io/ios/app/adobe-acrobat-sign/id481082197)

This app allows you to easily and securely get documents and forms signed electronically from anywhere. It enables you to sign documents yourself, send them to others for their signatures, track progress in real-time, and even scan paper documents into PDFs for signing.

**Highlights:** Sign documents on the go, Send documents for e-signature, Track agreement progress, Scan paper documents to PDF, Offline signing capability, In-person signing, Legally binding and secure

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient to use
- 💡 Useful for business
- 👍 Easy to navigate
- 🚀 Saves time

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- 🔑 Difficult to login and stay signed in
- 👎 Poor user interface
- 🤔 Lacks key functionality
- 💰 Overpriced for the features

**Reported bugs**

- Documents fail to load or send
- App redirects to website instead of functioning in-app
- Inconsistent behavior across iOS and Android
- Signing process often does not work as expected

**Requested features**

- Integration with OneDrive and other cloud storage
- Ability to resize signature/initial boxes
- Offline signing capability
- Streamlined login process
- Improved notification system


### pdfFiller

[App page](https://appshunter.io/ios/app/pdffiller-edit-pdf-documents/id571613512)

**Currently charting:** #48 Top Grossing · Business (US App Store)

This app transforms your device into a mobile office for managing PDF documents. Edit, eSign, and fill out forms, then share or export them. It offers secure storage and access to millions of templates, with offline capabilities.

**Highlights:** Edit PDF documents, Esign and fill out forms, Share and collaborate on documents, Securely store unlimited documents, Access millions of fillable templates, Work offline

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF editor • Basic Monthly | $19.99 | per month |
| PDF editor • Basic Monthly | $19.99 | per month |
| PDF editor • Plus Monthly | $29.99 | per month |
| PDF editor • Plus Monthly | $29.99 | per month |
| PDF editor • Premium Monthly | $39.99 | per month |
| Premium Monthly | $39.99 | per month |
| PDF editor • Basic Annual | $95.99 | per year |
| PDF editor • Basic Annual | $95.99 | per year |
| PDF editor • Plus Annual | $119.99 | per year |
| PDF editor • Premium Annual | $179.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Makes virtual work easy
- 💡 Great customer service/support
- 👍 Simple and organized
- 👍 Helpful for PDF management

**What reviewers complain about**

- 🐛 Buggy and glitchy
- 💰 Expensive subscription
- 🔒 Concerns about privacy and security
- 🤥 Misleading/deceptive advertising
- 🔒 Difficult to cancel subscription

**Reported bugs**

- Text/annotations not saving correctly
- Freezing/crashing issues
- Incompatibility with certain devices
- Login/account issues

**Requested features**

- Undo/redo functionality
- Ability to control opacity of annotations
- Better file management options
- Improved mobile experience
- Clearer pricing and subscription details


## Frequently asked questions

### Is Adobe Acrobat Sign free?

Adobe Acrobat Sign is free to download, with no in-app purchases.

### Is pdfFiller free?

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

### Which has better reviews, Adobe Acrobat Sign or pdfFiller?

pdfFiller is rated higher. Adobe Acrobat Sign averages 2.2 out of 5 from 646 ratings, while pdfFiller averages 4.5 from 9.1K ratings.

### Do Adobe Acrobat Sign or pdfFiller have ads?

Neither Adobe Acrobat Sign nor pdfFiller shows ads.

### Which is updated more often, Adobe Acrobat Sign or pdfFiller?

Adobe Acrobat Sign ships an update every 2 months, and pdfFiller fortnightly. Most recently, Adobe Acrobat Sign was updated on October 20, 2026 and pdfFiller on October 21, 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.*