# MobiPDF・PDF Text Editor・Reader vs Sign documents

The clearest difference is ads: MobiPDF・PDF Text Editor・Reader at none against Sign documents's shown. MobiPDF・PDF Text Editor・Reader also leads on ratings volume (7.6K vs 1) and chart position (#98 vs unranked). Sign documents's advantage is update cadence (weekly vs monthly) and rating (5.0 vs 4.8). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. MobiPDF・PDF Text Editor・Reader sells 13 in-app purchases, starting at $7.99 per 7 days and Sign documents sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Sign documents holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: MobiPDF・PDF Text Editor・Reader has 7.6K ratings behind it against 1, so its average is the more settled of the two.

MobiPDF・PDF Text Editor・Reader ships an update monthly, Sign documents weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | MobiPDF・PDF Text Editor・Reader | Sign documents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (7.6K ratings)](https://appshunter.io/ios/app/mobipdfpdf-text-editorreader/id1527395366/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sign-documents-swiftsign/id6758965643/reviews)** |
| Number of ratings | **7.6K** | 1 |
| Positive reviews | 82.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#98** | — |
| Size | 216 MB | 16 MB |
| Requires iOS | **18.0** | 18.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | +4 | 4+ |
| Developer | [MobiSystems, Inc.](https://appshunter.io/developer/289579214) | [Nawal Amallou](https://appshunter.io/developer/1507194394) |

## What reviewers say

### MobiPDF・PDF Text Editor・Reader

[App page](https://appshunter.io/ios/app/mobipdfpdf-text-editorreader/id1527395366)

**Currently charting:** #98 Top Grossing · Productivity, #192 Top Free · Productivity (US App Store)

Edit, create, and secure PDF documents on your mobile device. Scan paper documents to editable PDFs, recognize text with OCR, and fill or sign forms. Convert between PDF and other formats, and protect sensitive files with passwords.

**Highlights:** Scan documents to editable PDFs, Recognize text with OCR, Edit text, images, and signatures, Fill and sign forms, Convert PDFs to Word, Excel, PowerPoint, ePub, Protect PDFs with passwords, Organize and merge PDF pages

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Extra Premium | $7.99 | per 7 days |
| PDF Extra Premium Weekly | $7.99 | per 7 days |
| PDF Extra Premium 2023 Weekly | $7.99 | per 7 days |
| PDF Extra Premium Weekly | $7.99 | per 7 days |
| PDF Extra Premium | $9.99 | per month |
| PDF Extra Premium 2023 Weekly | $9.99 | per 7 days |
| Weekly Unlimited Access | $9.99 | per 7 days |
| PDF Extra Premium 2023 Monthly | $12.99 | per month |
| PDF Extra Premium Yearly | $24.99 | per year |
| PDF Extra Premium | $29.99 | per year |
| PDF Extra Premium Yearly | $49.99 | per year |
| PDF Extra Premium | $49.99 | per year |
| Yearly Unlimited Access | $49.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient and productive
- 💡 Good scanner feature
- 🚀 Helpful for work and school

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Buggy and crashes
- 🔒 Sneaky pricing tactics
- 🔒 Subscription scam

**Reported bugs**

- Text editing issues
- Image fields in forms don't work
- Incompatible with dynamic PDFs
- Activation issues

**Requested features**

- Add snap tool for cleaner documents
- Improve font sync
- Offer one-time purchase option
- Develop a Mac OS version


### Sign documents

[App page](https://appshunter.io/ios/app/sign-documents-swiftsign/id6758965643)

This app allows you to quickly and securely sign digital documents like PDFs, contracts, and forms. It offers various signature styles, a document scanner, and instant sharing options, eliminating the need for printing or faxing. Sign documents on the go with bank-level encryption for legally binding results.

**Highlights:** Sign PDFs and documents on the go, Create professional electronic signatures, Scan and sign paper documents, Multiple signature styles (draw, type, upload), Secure and legally binding signatures, Share signed documents instantly, Offline signing capability

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SwiftSign Pro | $1.99 | per month |
| SwiftSign Pro | $9.99 | per year |
| 10 Credits | $2.99 | one-time |


## Frequently asked questions

### Is MobiPDF・PDF Text Editor・Reader free?

MobiPDF・PDF Text Editor・Reader 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, MobiPDF・PDF Text Editor・Reader or Sign documents?

Sign documents is rated higher. MobiPDF・PDF Text Editor・Reader averages 4.8 out of 5 from 7.6K ratings, while Sign documents averages 5.0 from 1 ratings.

### Do MobiPDF・PDF Text Editor・Reader or Sign documents have ads?

Sign documents shows ads; MobiPDF・PDF Text Editor・Reader does not.

### Which is updated more often, MobiPDF・PDF Text Editor・Reader or Sign documents?

MobiPDF・PDF Text Editor・Reader ships an update monthly, and Sign documents weekly. Most recently, MobiPDF・PDF Text Editor・Reader was updated on October 24, 2026 and Sign documents on October 24, 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.*