# Viafirma vs Adobe Acrobat Sign

The clearest difference is rating: Adobe Acrobat Sign at 2.2 against Viafirma's 1.0. Adobe Acrobat Sign also leads on ratings volume (646 vs 1). Viafirma's advantage is monetization model (free vs free with in-app purchases) and review sentiment (25% vs 11%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Adobe Acrobat Sign holds the better App Store score, 2.2 against 1.0. That said, the two scores are not equally well evidenced: Adobe Acrobat Sign has 646 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 25% of Viafirma's written reviews are positive against 11% of Adobe Acrobat Sign's, so the app with the better star average is not the one people write more warmly about.

Viafirma ships an update every 3 months, Adobe Acrobat Sign every 2 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Viafirma | Adobe Acrobat Sign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/viafirma/id382315918/reviews) | **[2.2 (646 ratings)](https://appshunter.io/ios/app/adobe-acrobat-sign/id481082197/reviews)** |
| Number of ratings | 1 | **646** |
| Positive reviews | **25.0% of reviews** | 10.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 140 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Viafirma S.L](https://appshunter.io/developer/621607386) | [Adobe Inc.](https://appshunter.io/developer/331646274) |

## What reviewers say

### Viafirma

[App page](https://appshunter.io/ios/app/viafirma/id382315918)

This platform enables secure authentication and digital signing using your device's digital certificates. It integrates with web applications that support its services and works with various official certification authorities worldwide. Manage multiple certificates and use different input methods for a seamless signing experience.

**Highlights:** Digital certificate management, Secure authentication, Digital signing, Supports multiple certification authorities, Stylus and smartcard support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Viafirma free?

Viafirma is free to download, with no in-app purchases.

### Is Adobe Acrobat Sign free?

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

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

Adobe Acrobat Sign is rated higher. Viafirma averages 1.0 out of 5 from 1 ratings, while Adobe Acrobat Sign averages 2.2 from 646 ratings.

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

Neither Viafirma nor Adobe Acrobat Sign shows ads.

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

Viafirma ships an update every 3 months, and Adobe Acrobat Sign every 2 months. Most recently, Viafirma was updated on October 23, 2026 and Adobe Acrobat Sign on October 26, 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.*