# PDF Reader vs AIDO PDF Scanner

The clearest difference is ads: AIDO PDF Scanner at none against PDF Reader's shown. AIDO PDF Scanner also leads on monetization model (free vs ad-supported). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. PDF Reader sells 3 in-app purchases, starting at $14.99 per 7 days and AIDO PDF Scanner sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for PDF Reader against 5.0 for AIDO PDF Scanner. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

PDF Reader ships an update every 2 weeks, AIDO PDF Scanner every 11 days. The most recent releases landed on October 28, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | PDF Reader | AIDO PDF Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/pdf-reader-edit-and-sign/id6761097664/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/aido-pdf-scanner/id6768250357/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Ad-supported | **Free** |
| Size | 89 MB | 201 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Quynh Trang Pham Doan](https://appshunter.io/developer/1880613796) | [New Sophon Technology Limited](https://appshunter.io/developer/1780457092) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-edit-and-sign/id6761097664)

Easily manage your PDF files on your phone with tools for reading, editing, signing, and converting documents. Import files, use the camera, and access recent documents quickly. Convert various file types to PDF and perform essential PDF management tasks like merging and splitting.

**Highlights:** Sign documents, Add text to PDFs, Highlight and underline content, Convert Docs/Excel/Img to PDF, Merge and split PDFs, Compress and extract PDFs

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $14.99 | per 7 days |
| Yearly Premium Sale | $49.99 | per year |
| Yearly Premium | $99.99 | per year |


### AIDO PDF Scanner

[App page](https://appshunter.io/ios/app/aido-pdf-scanner/id6768250357)

This app offers intelligent document scanning, converting paper to high-definition digital files. It extracts text from images, allows PDF editing, and converts documents between various formats. Sync your files across devices for easy access and management.

**Highlights:** Mobile document scanning, Image to text OCR, PDF editing and merging, Format conversion (PDF, Word, Excel), Multi-device syncing, E-signature generation

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Free Trial | $4.99 | per 7 days |
| Weekly Premium | $6.99 | per 7 days |
| Monthly Freetrial | $12.99 | per month |
| Monthly Premium | $12.99 | per month |
| Annual Freetrial | $59.99 | per year |
| Annual Premium | $79.99 | per year |


## Frequently asked questions

### Is PDF Reader free?

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

### Is AIDO PDF Scanner free?

AIDO PDF Scanner is free to download, with in-app purchases available.

### Which has better reviews, PDF Reader or AIDO PDF Scanner?

PDF Reader and AIDO PDF Scanner are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do PDF Reader or AIDO PDF Scanner have ads?

PDF Reader shows ads; AIDO PDF Scanner does not.

### Which is updated more often, PDF Reader or AIDO PDF Scanner?

PDF Reader ships an update every 2 weeks, and AIDO PDF Scanner every 11 days. Most recently, PDF Reader was updated on October 28, 2026 and AIDO PDF Scanner on October 11, 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.*