# PDF Reader vs iDoc

The clearest difference is in-app purchases: iDoc at none against PDF Reader's 1. iDoc also leads on ads (none vs shown) and update cadence (every 8 days vs every 9 months). PDF Reader's advantage is iOS requirement (9.0 vs 11.0). On price and device support there is nothing between them.

Both are free to download. PDF Reader sells 1 one-off in-app purchase. iDoc asks for nothing beyond the download.

PDF Reader ships an update every 9 months, iDoc every 8 days. The most recent releases landed on September 14, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | PDF Reader | iDoc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/pdf-reader-docs-viewer/id1240773558/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 41 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [小玲 白](https://appshunter.io/developer/1166875754) | [TP TECHNOLOGY SERVICES COMPANY LIMITED](https://appshunter.io/developer/1683283412) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-docs-viewer/id1240773558)

Easily view PDF documents on your mobile device or tablet. Upload files via WiFi, open encrypted PDFs with a password, and enjoy adaptive screen sizing for comfortable reading. Protect your documents with app lock and gesture passwords.

**Highlights:** View PDF documents, WiFi file upload, Encrypted PDF support, Adaptive screen size, Read Word, Excel, PPT, App lock and gesture password

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanently remove ads | $1.99 | one-time |


### iDoc

[App page](https://appshunter.io/ios/app/idoc-pdf-reader-and-viewer/id6448430525)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Reader free?

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

### Is iDoc free?

iDoc is free to download, with no in-app purchases.

### Do PDF Reader or iDoc have ads?

PDF Reader shows ads; iDoc does not.

### Which is updated more often, PDF Reader or iDoc?

PDF Reader ships an update every 9 months, and iDoc every 8 days. Most recently, PDF Reader was updated on September 14, 2026 and iDoc on May 16, 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.*