# SignPDF vs Fill & Sign Documents PDF Scan

The clearest difference is review sentiment: SignPDF at 85% against Fill & Sign Documents PDF Scan's 40%. SignPDF also leads on iOS requirement (6.0 vs 15.0). Fill & Sign Documents PDF Scan's advantage is update cadence (every 3 weeks vs every 3 months) and rating (4.7 vs 4.4). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. SignPDF sells 3 one-off in-app purchases and Fill & Sign Documents PDF Scan sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Fill & Sign Documents PDF Scan holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 105 and 292 respectively. Written reviews complicate that: 85% of SignPDF's written reviews are positive against 40% of Fill & Sign Documents PDF Scan's, so the app with the better star average is not the one people write more warmly about.

SignPDF ships an update every 3 months, Fill & Sign Documents PDF Scan every 3 weeks. Both last shipped on October 22, 2026.

## The numbers

| Metric | SignPDF | Fill & Sign Documents PDF Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (105 ratings)](https://appshunter.io/ios/app/signpdf-quickly-annotate-pdf/id596126185/reviews) | **[4.7 (292 ratings)](https://appshunter.io/ios/app/fill-and-sign-documents-pdf-scan/id6738945232/reviews)** |
| Number of ratings | 105 | **292** |
| Positive reviews | **85.1% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 182 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tektrify, Inc](https://appshunter.io/developer/400337660) | [AI Chat Signature Social Productivity Apps for Free](https://appshunter.io/developer/1690012460) |

## 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


### Fill & Sign Documents PDF Scan

[App page](https://appshunter.io/ios/app/fill-and-sign-documents-pdf-scan/id6738945232)

Easily sign, fill, and send documents from your mobile device. This app offers a complete e-signing workflow with professional document management and enterprise-grade security. Track signatures, manage multiple signers, and ensure legally-binding agreements.

**Highlights:** E-signing workflow, Document scanning and import, Multiple signer support, Real-time signing progress tracking, Audit trails, Smart signature creation, Document editing and preparation

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quick eSign Basic - Weekly | $4.99 | per 7 days |
| eSign Documents | $9.99 | per month |
| Sign Docs Max - Monthly | $14.99 | per month |
| Sign Docs Pro - Yearly | $69.99 | per year |
| Sign Docs Max - Yearly | $119.99 | per year |


## Frequently asked questions

### Is SignPDF free?

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

### Is Fill & Sign Documents PDF Scan free?

Fill & Sign Documents PDF Scan is free to download, with in-app purchases available.

### Which has better reviews, SignPDF or Fill & Sign Documents PDF Scan?

Fill & Sign Documents PDF Scan is rated higher. SignPDF averages 4.4 out of 5 from 105 ratings, while Fill & Sign Documents PDF Scan averages 4.7 from 292 ratings.

### Do SignPDF or Fill & Sign Documents PDF Scan have ads?

Neither SignPDF nor Fill & Sign Documents PDF Scan shows ads.

### Which is updated more often, SignPDF or Fill & Sign Documents PDF Scan?

SignPDF ships an update every 3 months, and Fill & Sign Documents PDF Scan every 3 weeks. Most recently, SignPDF was updated on October 22, 2026 and Fill & Sign Documents PDF Scan on October 22, 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.*