# pdfFiller vs Sign PDF Documents

The clearest difference is rating: Sign PDF Documents at 4.9 against pdfFiller's 4.4. pdfFiller's advantage is ratings volume (8.5K vs 55) and chart position (#62 vs unranked). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. pdfFiller sells 10 in-app purchases, starting at $19.99 per month and Sign PDF Documents sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sign PDF Documents holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: pdfFiller has 8.5K ratings behind it against 55, so its average is the more settled of the two.

pdfFiller ships an update fortnightly, Sign PDF Documents every 3 weeks. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | pdfFiller | Sign PDF Documents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (8.5K ratings)](https://appshunter.io/ios/app/pdffiller-edit-pdf-documents/id571613512/reviews) | **[4.9 (55 ratings)](https://appshunter.io/ios/app/sign-pdf-documents-esign-app/id1661630551/reviews)** |
| Number of ratings | **8.5K** | 55 |
| Positive reviews | 19.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | **#62** | — |
| Size | 178 MB | 89 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [airSlate, Inc.](https://appshunter.io/developer/565493707) | [NextPixel apps](https://appshunter.io/developer/1584487280) |

## What reviewers say

### pdfFiller

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

**Currently charting:** #62 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


### Sign PDF Documents

[App page](https://appshunter.io/ios/app/sign-pdf-documents-esign-app/id1661630551)

Easily sign documents like PDFs and other files directly from your device. Scan, capture, or create custom signatures to apply to your files. Manage and share all your signed documents with this offline app.

**Highlights:** Sign documents from files, Sign documents from iCloud, Sign documents from photos, Scan and sign documents, Create and capture signatures, Edit PDFs with signatures, Share signed documents, Manage signed documents

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Signature weekly plan | $4.99 | per 7 days |
| Sign PDF Documents with Esign | $4.99 | per 7 days |
| Sign PDF Documents with Esign | $5.99 | per 7 days |
| E-signature documents & PDF | $6.99 | per 7 days |
| Document sign now - Monthly | $7.99 | per month |
| PDF Signature - eSign App | $9.99 | per month |


## Frequently asked questions

### Is pdfFiller free?

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

### Is Sign PDF Documents free?

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

### Which has better reviews, pdfFiller or Sign PDF Documents?

Sign PDF Documents is rated higher. pdfFiller averages 4.4 out of 5 from 8.5K ratings, while Sign PDF Documents averages 4.9 from 55 ratings.

### Do pdfFiller or Sign PDF Documents have ads?

Neither pdfFiller nor Sign PDF Documents shows ads.

### Which is updated more often, pdfFiller or Sign PDF Documents?

pdfFiller ships an update fortnightly, and Sign PDF Documents every 3 weeks. Most recently, pdfFiller was updated on September 24, 2026 and Sign PDF Documents on September 10, 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.*