# SignPDF vs Sign Documents

The clearest difference is review sentiment: SignPDF at 85% against Sign Documents's 0%. SignPDF also leads on iOS requirement (6.0 vs 13.0). Sign Documents's advantage is rating (4.7 vs 4.4). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. SignPDF sells 3 one-off in-app purchases and Sign Documents sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sign Documents holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 105 and 39 respectively. Written reviews complicate that: 85% of SignPDF's written reviews are positive against 0% of Sign Documents's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SignPDF | Sign Documents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (105 ratings)](https://appshunter.io/ios/app/signpdf-quickly-annotate-pdf/id596126185/reviews) | **[4.7 (39 ratings)](https://appshunter.io/ios/app/sign-documents-pdf-signature/id6741105782/reviews)** |
| Number of ratings | **105** | 39 |
| Positive reviews | **85.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 12 MB | 55 MB |
| Requires iOS | **6.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tektrify, Inc](https://appshunter.io/developer/400337660) | [MR BIKRAMJIT SINGH](https://appshunter.io/developer/1783766508) |

## What reviewers say

### SignPDF

[App page](https://appshunter.io/ios/app/signpdf-quickly-annotate-pdf/id596126185)

Easily sign and fill out PDF documents directly on your device without needing an account. Open PDFs from various cloud services, add your signature, text, and checkmarks, then share or save the completed document.

**Highlights:** Sign documents with your finger, Fill out PDF forms, Add name, initial, and date, Open PDFs from cloud storage, Export signed documents, Print documents via AirPrint

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6 Credits | $1.99 | one-time |
| 24 Credits | $4.99 | one-time |
| Unlimited Credits | $19.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 📱 Convenient mobile document signing
- 💰 Affordable pricing with free version available
- ⚡ Fast document processing and export
- 🎯 Saves time eliminating printing and scanning

**What reviewers complain about**

- 🐛 Frequent crashes and freezing issues
- ❌ App fails to open or load past splash screen
- 💳 Limited free credits requiring paid upgrades
- 🔄 Compatibility issues with iOS updates
- 😤 Poor customer support and unresponsive developers

**Reported bugs**

- App crashes when saving or exporting documents
- Signature placement doesn't match preview
- App hangs after opening PDF files
- Freezes on iOS 13.1.3 and newer versions
- Grey screen loading issue on tablets and phones

**Requested features**

- Better credit system or ad-supported alternative
- Automatic text and signature positioning
- Ability to delete saved signatures
- Sync functionality between iPhone and iPad
- More advanced PDF editing features


### Sign Documents

[App page](https://appshunter.io/ios/app/sign-documents-pdf-signature/id6741105782)

Effortlessly create and apply your digital signature to various document types directly from your mobile device. This app offers a user-friendly interface for crafting signatures and securing your important files.

**Highlights:** Digital hand signature creation, Sign PDF and DOCX documents, User-friendly interface, Secure document signing, Multiple subscription plans

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SignIt Premium | $4.99 | per 7 days |
| SignIt Premium | $6.99 | per 7 days |
| SignIt Premium | $19.99 | per year |


## Frequently asked questions

### Is SignPDF free?

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

### Is Sign Documents free?

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

### Which has better reviews, SignPDF or Sign Documents?

Sign Documents is rated higher. SignPDF averages 4.4 out of 5 from 105 ratings, while Sign Documents averages 4.7 from 39 ratings.

### Do SignPDF or Sign Documents have ads?

Neither SignPDF nor Sign Documents shows ads.

### Which is updated more often, SignPDF or Sign Documents?

SignPDF ships an update every 3 months, and Sign Documents every 3 months. Most recently, SignPDF was updated on November 1, 2026 and Sign Documents on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*