# ShortMemo vs Penmo+ Quiet Writing Notebook

The clearest difference is in-app purchases: ShortMemo at none against Penmo+ Quiet Writing Notebook's 3. ShortMemo also leads on iOS requirement (12.0 vs 15.0). Penmo+ Quiet Writing Notebook's advantage is update cadence (every 2 days vs every 9 days). On price, ads and device support there is nothing between them.

Both are free to download. Penmo+ Quiet Writing Notebook sells 3 in-app purchases, starting at $0.99 per month. ShortMemo asks for nothing beyond the download.

ShortMemo ships an update every 9 days, Penmo+ Quiet Writing Notebook every 2 days. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ShortMemo | Penmo+ Quiet Writing Notebook |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 94.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 92 MB | 68 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [UT app](https://appshunter.io/developer/1574140718) | [Seiya.k](https://appshunter.io/developer/383021944) |

## What reviewers say

### ShortMemo

[App page](https://appshunter.io/ios/app/shortmemo-idea-draft-etc/id6462784133)

**In-app purchases:** none


### Penmo+ Quiet Writing Notebook

[App page](https://appshunter.io/ios/app/penmo-plus-quiet-writing-notebook/id6777692398)

A distraction-free writing application designed for authors and journalers. It offers a clean editor, organizational tools for novels and notes, and features like draft history and full-text search. The app supports vertical writing and provides a dedicated reading mode.

**Highlights:** Distraction-free editor, Novel and note organization, Draft history, Vertical writing and ruby support, Dedicated reading mode, Writing progress heatmap, Offline functionality, Plain-text export

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Penmo+ Pro (Monthly) | $0.99 | per month |
| Penmo+ Pro (Yearly) | $3.99 | per year |
| Penmo+ Pro (Lifetime) | $5.99 | one-time |


## Frequently asked questions

### Is ShortMemo free?

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

### Is Penmo+ Quiet Writing Notebook free?

Penmo+ Quiet Writing Notebook is free to download, with in-app purchases available.

### Do ShortMemo or Penmo+ Quiet Writing Notebook have ads?

Neither ShortMemo nor Penmo+ Quiet Writing Notebook shows ads.

### Which is updated more often, ShortMemo or Penmo+ Quiet Writing Notebook?

ShortMemo ships an update every 9 days, and Penmo+ Quiet Writing Notebook every 2 days. Most recently, ShortMemo was updated on October 14, 2026 and Penmo+ Quiet Writing Notebook on October 28, 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.*