# MemSheet vs Highlight PDF

The clearest difference is in-app purchases: MemSheet at none against Highlight PDF's 3. MemSheet also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (13.0 vs 17.6). Highlight PDF's advantage is ads (none vs shown). On price 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. MemSheet asks for nothing beyond the download.

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

## The numbers

| Metric | MemSheet | Highlight PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 6 MB | 24 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takuya Kawakami](https://appshunter.io/developer/721449462) | [Fenuku Kekeli](https://appshunter.io/developer/1822419894) |

## What reviewers say

### MemSheet

[App page](https://appshunter.io/ios/app/memsheet/id1524907788)

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

**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 MemSheet free?

MemSheet 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 MemSheet or Highlight PDF have ads?

MemSheet shows ads; Highlight PDF does not.

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

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