# OutlineProcessor vs Dual

The clearest difference is price: OutlineProcessor at Free against Dual's $4.99. Dual's advantage is rating (4.5 vs 3.5) and review sentiment (60% vs 20%). On ratings volume and ads there is nothing between them.

OutlineProcessor is free to download; Dual costs $4.99 up front. OutlineProcessor sells 1 one-off in-app purchase. Dual asks for nothing beyond the download.

Dual holds the better App Store score, 4.5 against 3.5. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews point the same way: 20% of OutlineProcessor's written reviews are positive against 60% of Dual's.

OutlineProcessor ships an update every 59 months, Dual every 3 weeks. The most recent releases landed on October 4, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | OutlineProcessor | Dual |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/outlineprocessor/id1043577975/reviews) | **[4.5 (11 ratings)](https://appshunter.io/ios/app/dual-multi-screen-webbrowser/id1494484399/reviews)** |
| Number of ratings | 4 | **11** |
| Positive reviews | 20.0% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 59 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 3 MB | 8 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [hirokazu murabe](https://appshunter.io/developer/894364772) | [Dongwook Cho](https://appshunter.io/developer/1615253426) |

## 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 |


### Dual

[App page](https://appshunter.io/ios/app/dual-multi-screen-webbrowser/id1494484399)

This innovative web browser enables true multitasking by supporting up to four concurrent web pages. Seamlessly switch between tasks like watching videos while composing emails or browsing social media while searching. Maximize your productivity with its flexible layout options and ad-blocking capabilities.

**Highlights:** Up to 4 concurrent web views, Horizontal and vertical dual web views, Switch page layouts with a single tap, Supports up to 6 sessions, Ad block included, Private browsing with bio-authentication, Capture screen area or whole web page as image

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OutlineProcessor free?

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

### Is Dual free?

Dual costs $4.99, with no in-app purchases.

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

Dual is rated higher. OutlineProcessor averages 3.5 out of 5 from 4 ratings, while Dual averages 4.5 from 11 ratings.

### Do OutlineProcessor or Dual have ads?

Neither OutlineProcessor nor Dual shows ads.

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

OutlineProcessor ships an update every 59 months, and Dual every 3 weeks. Most recently, OutlineProcessor was updated on October 4, 2026 and Dual on October 20, 2026.

---

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