# Fitting O vs Quick Markdown Viewer

Fitting O and Quick Markdown Viewer are too close to call on the numbers: across 9 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

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

## The numbers

| Metric | Fitting O | Quick Markdown Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/fitting-o-ring-finder/id1557789899/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/quick-markdown-viewer/id6761271951/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | Free | Free |
| Size | 181 MB | 29 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anson Thurston](https://appshunter.io/developer/1557789901) | [Sous Chef Studio, Inc.](https://appshunter.io/developer/1768173412) |

## What reviewers say

### Fitting O

[App page](https://appshunter.io/ios/app/fitting-o-ring-finder/id1557789899)

Easily identify the correct O-ring for various hydraulic fitting types. Select your fitting style, and the app provides details, common sizes, and specific O-ring information to help you find the right part.

**Highlights:** Hydraulic fitting type selection, Common O-ring size listing, Detailed O-ring information, Supports US Dash and Metric sizes, Covers Flange, O-Ring Face, and more

**Features:** macOS Compatibility

**In-app purchases:** none


### Quick Markdown Viewer

[App page](https://appshunter.io/ios/app/quick-markdown-viewer/id6761271951)

This app provides a fast, local-first reader for Markdown folders, documentation packets, and media-rich notes across Mac, iPhone, and iPad. It allows opening local files or public GitHub repositories without requiring an account, subscription, or tracking.

**Highlights:** Open local folders and browse Markdown, CSV, TSV files, Open JSON, JSONC, NDJSON, JSONL files, Read JSON-family code blocks within Markdown, Search current or all open documents, Native rendering for Markdown elements and Mermaid diagrams, Open public GitHub repository URLs, macOS Quick Look extension and command-line launcher

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

**In-app purchases:** none


## Frequently asked questions

### Is Fitting O free?

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

### Is Quick Markdown Viewer free?

Quick Markdown Viewer is free to download, with no in-app purchases.

### Which has better reviews, Fitting O or Quick Markdown Viewer?

Fitting O and Quick Markdown Viewer are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Fitting O or Quick Markdown Viewer have ads?

Neither Fitting O nor Quick Markdown Viewer shows ads.

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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.*