# Sign PDF documents vs uSign

The clearest difference is rating: uSign at 4.8 against Sign PDF documents's 1.0. uSign also leads on ads (none vs shown) and ratings volume (47 vs 1). Sign PDF documents's advantage is review sentiment (22% vs 0%) and monetization model (ad-supported vs free with in-app purchases). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Sign PDF documents sells 3 in-app purchases, starting at $2.99 per month and uSign sells 3 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

uSign holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: uSign has 47 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 22% of Sign PDF documents's written reviews are positive against 0% of uSign's, so the app with the better star average is not the one people write more warmly about.

Sign PDF documents ships an update every 3 weeks, uSign every 4 weeks. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Sign PDF documents | uSign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/sign-pdf-documents/id1011784538/reviews) | **[4.8 (47 ratings)](https://appshunter.io/ios/app/usign-sign-documents/id6463132201/reviews)** |
| Number of ratings | 1 | **47** |
| Positive reviews | **22.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 19 MB | 43 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Emanuele Floris](https://appshunter.io/developer/597490842) | [Hendrych Kowalski](https://appshunter.io/developer/1703990075) |

## What reviewers say

### Sign PDF documents

[App page](https://appshunter.io/ios/app/sign-pdf-documents/id1011784538)

Easily sign documents digitally without printing. This app allows for unlimited signatures without requiring a subscription or registration, making document signing quick and convenient.

**Highlights:** Unlimited digital signatures, No subscription required, No registration needed, Sign without printing, Document archiving

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $2.99 | per month |
| Unlimited Access | $8.99 | per year |
| PRO Lifetime Access | $22.99 | one-time |


### uSign

[App page](https://appshunter.io/ios/app/usign-sign-documents/id6463132201)

Effortlessly sign and send documents from your mobile device. This app transforms your iPhone or iPad into a powerful e-signature tool for PDFs and other file types. Import, scan, sign, and share documents quickly and easily.

**Highlights:** Sign documents anywhere, Fill and edit documents, Create electronic signatures, Import documents, Share as PDF or JPG

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $5.99 | per 7 days |
| Premium Weekly | $9.99 | per 7 days |
| Premium Annual | $69.99 | per year |


## Frequently asked questions

### Is Sign PDF documents free?

Sign PDF documents is free to download, with in-app purchases available.

### Is uSign free?

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

### Which has better reviews, Sign PDF documents or uSign?

uSign is rated higher. Sign PDF documents averages 1.0 out of 5 from 1 ratings, while uSign averages 4.8 from 47 ratings.

### Do Sign PDF documents or uSign have ads?

Sign PDF documents shows ads; uSign does not.

### Which is updated more often, Sign PDF documents or uSign?

Sign PDF documents ships an update every 3 weeks, and uSign every 4 weeks. Most recently, Sign PDF documents was updated on October 4, 2026 and uSign on October 7, 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.*