# zOutline vs HiMemo

The clearest difference is update cadence: zOutline at every 3 weeks against HiMemo's every 19 months. HiMemo's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

zOutline ships an update every 3 weeks, HiMemo every 19 months. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | zOutline | HiMemo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zoutline/id1179222435/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 19 months |
| Monetization | Free | — |
| Size | 1 MB | 30 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Zack Smith](https://appshunter.io/developer/388860537) | [Hiroyuki Kawai](https://appshunter.io/developer/1286509355) |

## What reviewers say

### zOutline

[App page](https://appshunter.io/ios/app/zoutline/id1179222435)

This is a simple outline editor that allows for easy creation and management of hierarchical lists. It supports multiple outlines in tabs, text formatting, and various export options like HTML, RTF, and plain text. The app remembers your progress and allows sharing via email attachments.

**Highlights:** Simple tap and gesture controls, Multiple outlines in tabs, Text formatting (bold, italic, underline), Export to HTML, RTF, and text, Email attachment sharing, Persistent editing state

**Features:** macOS Compatibility

**In-app purchases:** none


### HiMemo

[App page](https://appshunter.io/ios/app/himemo/id1506694081)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is zOutline free?

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

### Is HiMemo free?

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

### Do zOutline or HiMemo have ads?

Neither zOutline nor HiMemo shows ads.

### Which is updated more often, zOutline or HiMemo?

zOutline ships an update every 3 weeks, and HiMemo every 19 months. Most recently, zOutline was updated on October 1, 2026 and HiMemo on October 8, 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.*