# Kosshi Outliner vs memomer

The clearest difference is ads: Kosshi Outliner at none against memomer's shown. memomer's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Kosshi Outliner sells 1 one-off in-app purchase and memomer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Kosshi Outliner | memomer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/kosshi-outliner/id6759483880/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | Free | — |
| Size | 29 MB | 48 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Junichi Sato](https://appshunter.io/developer/1617496266) | [Bouzer LLC](https://appshunter.io/developer/1809286489) |

## What reviewers say

### Kosshi Outliner

[App page](https://appshunter.io/ios/app/kosshi-outliner/id6759483880)

This native outliner app allows you to organize thoughts with a hierarchical structure, zoom into specific sections, and format text using Markdown. It supports images, sketches, internal links, and reminders, with seamless iCloud sync across Apple devices.

**Highlights:** Hierarchical outlining with indentation, Zoom into specific rows, Markdown formatting, Image and file embedding, Apple Pencil sketches, Internal linking, Reminders and calendar sync

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kosshi Outliner | $24.99 | one-time |


### memomer

[App page](https://appshunter.io/ios/app/memomer-tree-notes-plus/id6774661729)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Unlock Limits | $5.99 | one-time |


## Frequently asked questions

### Is Kosshi Outliner free?

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

### Is memomer free?

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

### Do Kosshi Outliner or memomer have ads?

memomer shows ads; Kosshi Outliner does not.

### Which is updated more often, Kosshi Outliner or memomer?

Kosshi Outliner ships an update every 3 days, and memomer every 3 days. Most recently, Kosshi Outliner was updated on October 8, 2026 and memomer 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.*