# Highlight PDF vs Matrix

The clearest difference is update cadence: Matrix at every 3 days against Highlight PDF's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Highlight PDF sells 3 in-app purchases, starting at $7.99 per month and Matrix sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Highlight PDF ships an update every 4 months, Matrix every 3 days. The most recent releases landed on August 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Highlight PDF | Matrix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Size | 24 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fenuku Kekeli](https://appshunter.io/developer/1822419894) | [小豪 黄](https://appshunter.io/developer/1894800860) |

## What reviewers say

### Highlight PDF

[App page](https://appshunter.io/ios/app/highlight-pdf-markup-notes/id6756120385)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access for a month | $7.99 | per month |
| All Access for a year | $39.99 | per year |
| All Access to Lifetime | $99.99 | one-time |


### Matrix

[App page](https://appshunter.io/ios/app/matrix-markdown-notes/id6785348155)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MD Pro Monthly | $1.99 | per month |
| MD Pro Yearly | $5.99 | per year |


## Frequently asked questions

### Is Highlight PDF free?

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

### Is Matrix free?

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

### Do Highlight PDF or Matrix have ads?

Neither Highlight PDF nor Matrix shows ads.

### Which is updated more often, Highlight PDF or Matrix?

Highlight PDF ships an update every 4 months, and Matrix every 3 days. Most recently, Highlight PDF was updated on August 25, 2026 and Matrix on September 18, 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.*