# PDF Viewer vs MentorMatric

The clearest difference is in-app purchases: MentorMatric at none against PDF Viewer's 3. MentorMatric also leads on ads (none vs shown) and update cadence (every 5 days vs every 3 weeks). PDF Viewer's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. PDF Viewer sells 3 in-app purchases, starting at $3.99 per 7 days. MentorMatric asks for nothing beyond the download.

PDF Viewer ships an update every 3 weeks, MentorMatric every 5 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PDF Viewer | MentorMatric |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-viewer-read-and-edit/id6740764436/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 74 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [海 蒋](https://appshunter.io/developer/1720305935) | [Jagdish Chander](https://appshunter.io/developer/6789433256) |

## What reviewers say

### PDF Viewer

[App page](https://appshunter.io/ios/app/pdf-viewer-read-and-edit/id6740764436)

This app allows you to quickly open, read, and manage PDF documents on your device. It offers features like editing, merging, splitting, and converting photos to PDF. You can also search for files by name.

**Highlights:** Quick PDF opening and reading, Edit PDFs with signatures and drawings, Convert photos to PDF, Search documents by name, Merge and split PDF files, Rename PDF files

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| weekly | $3.99 | per 7 days |
| monthly | $9.99 | per month |
| yearly | $29.99 | per year |


### MentorMatric

[App page](https://appshunter.io/ios/app/mentormatric/id6758246143)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Viewer free?

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

### Is MentorMatric free?

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

### Do PDF Viewer or MentorMatric have ads?

PDF Viewer shows ads; MentorMatric does not.

### Which is updated more often, PDF Viewer or MentorMatric?

PDF Viewer ships an update every 3 weeks, and MentorMatric every 5 days. Most recently, PDF Viewer was updated on November 4, 2026 and MentorMatric on November 5, 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.*