# Outerline vs Diddit

The clearest difference is price: Diddit at Free against Outerline's $9.99. Diddit also leads on ratings volume (3 vs 1) and iOS requirement (18.0 vs 26.0). Outerline's advantage is update cadence (every 4 days vs every 3 weeks). On rating, review sentiment, ads and in-app purchases there is nothing between them.

Diddit is free to download; Outerline costs $9.99 up front. Outerline sells 4 in-app purchases, starting at $1.99 per month and Diddit sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Outerline against 5.0 for Diddit. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Outerline ships an update every 4 days, Diddit every 3 weeks. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Outerline | Diddit |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/outerline/id6759767830/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/diddit-shareable-logbook/id6783506911/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Paid | **Freemium** |
| Size | 27 MB | 18 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, Mac** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Adam Goehrig-Bawany](https://appshunter.io/developer/1880546252) | [Christopher LoSacco](https://appshunter.io/developer/1798483172) |

## What reviewers say

### Outerline

[App page](https://appshunter.io/ios/app/outerline/id6759767830)

A fast, fluid Markdown editor for macOS and iOS that prioritizes your writing and file ownership. It offers robust features for organizing, linking, and exporting notes, all while working offline and without requiring an account.

**Highlights:** Offline Markdown editing, File ownership with .md files, Live syntax highlighting, Keyboard toolbar for formatting, In-document search and word count, Wiki links and note connections, Export to Markdown, HTML, PDF, Mermaid diagram rendering

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Outerline Publish | $1.99 | per month |
| Small Tip | $1.99 | one-time |
| Outerline Tip Medium | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


### Diddit

[App page](https://appshunter.io/ios/app/diddit-shareable-logbook/id6783506911)

Create shared trackers for recurring life events with others. Easily log entries, view historical timelines, and manage household tasks, hobbies, or pet care. Your data is securely stored in iCloud with no third-party tracking.

**Highlights:** Create shared trackers, One-tap logging, Historical timelines, Private or shared groups, iCloud data storage, No third-party tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diddit Plus (Monthly) | $1.99 | per month |
| Diddit Plus | $19.99 | per year |


## Frequently asked questions

### Is Outerline free?

Outerline costs $9.99, and also offers in-app purchases.

### Is Diddit free?

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

### Which has better reviews, Outerline or Diddit?

Outerline and Diddit are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Outerline or Diddit have ads?

Neither Outerline nor Diddit shows ads.

### Which is updated more often, Outerline or Diddit?

Outerline ships an update every 4 days, and Diddit every 3 weeks. Most recently, Outerline was updated on September 19, 2026 and Diddit on September 17, 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.*