# OutlineProcessor vs zOutline

The clearest difference is rating: zOutline at 5.0 against OutlineProcessor's 3.5. zOutline also leads on in-app purchases (none vs 1) and review sentiment (50% vs 20%). On price, ratings volume and ads there is nothing between them.

Both are free to download. OutlineProcessor sells 1 one-off in-app purchase. zOutline asks for nothing beyond the download.

zOutline holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 20% of OutlineProcessor's written reviews are positive against 50% of zOutline's.

OutlineProcessor ships an update every 59 months, zOutline every 3 weeks. The most recent releases landed on September 3, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | OutlineProcessor | zOutline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/outlineprocessor/id1043577975/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zoutline/id1179222435/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 20.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 59 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 1 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [hirokazu murabe](https://appshunter.io/developer/894364772) | [Zack Smith](https://appshunter.io/developer/388860537) |

## What reviewers say

### OutlineProcessor

[App page](https://appshunter.io/ios/app/outlineprocessor/id1043577975)

This app helps you organize thoughts and ideas with a simple yet powerful outliner. Create nested lists, manage multiple projects, and use intuitive controls to structure essays, novels, or tasks. Its clean interface minimizes distractions for focused thinking.

**Highlights:** Infinite hierarchy for nested lists, Intuitive controls for reordering items, Multiple document management, Focus-oriented minimalist interface, Idea capture and development

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide Advertisement | $2.99 | one-time |


### 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


## Frequently asked questions

### Is OutlineProcessor free?

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

### Is zOutline free?

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

### Which has better reviews, OutlineProcessor or zOutline?

zOutline is rated higher. OutlineProcessor averages 3.5 out of 5 from 4 ratings, while zOutline averages 5.0 from 2 ratings.

### Do OutlineProcessor or zOutline have ads?

Neither OutlineProcessor nor zOutline shows ads.

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

OutlineProcessor ships an update every 59 months, and zOutline every 3 weeks. Most recently, OutlineProcessor was updated on September 3, 2026 and zOutline on June 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*