# TSUZURU vs Highlight PDF

The clearest difference is in-app purchases: TSUZURU at none against Highlight PDF's 3. TSUZURU also leads on update cadence (every 10 days vs every 4 months) and iOS requirement (15.1 vs 17.6). On price, ads 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. TSUZURU asks for nothing beyond the download.

TSUZURU ships an update every 10 days, Highlight PDF every 4 months. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | TSUZURU | Highlight PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Size | 41 MB | 24 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tatsunori Morita](https://appshunter.io/developer/905741931) | [Fenuku Kekeli](https://appshunter.io/developer/1822419894) |

## What reviewers say

### TSUZURU

[App page](https://appshunter.io/ios/app/tsuzuru/id6754666584)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is TSUZURU free?

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

### Is Highlight PDF free?

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

### Do TSUZURU or Highlight PDF have ads?

Neither TSUZURU nor Highlight PDF shows ads.

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

TSUZURU ships an update every 10 days, and Highlight PDF every 4 months. Most recently, TSUZURU was updated on October 1, 2026 and Highlight PDF on October 9, 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.*