iWriter 2 vs Fitting O
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iWriter 2
A minimalist Markdown text editor designed for distraction-free writing. It offers advanced features like MultiMarkdown support, live preview, Wikilinks, and seamless export to various formats. Built with TextKit 2 for enhanced performance and a smooth user experience.
- Distraction-free minimalist writing environment
- MultiMarkdown support with live preview
- Wikilinks and Wiki-Embeds
- Built-in document manager with search
- Export to HTML, PDF, EPUB, DOCX, LaTeX
- LaTeX syntax highlighting and Mermaid diagrams
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iWriter 2 is an elegant and minimalist Markdown text editor designed for distraction-free writing. # iWriter 2 is the next generation of the beloved iWriter text editor. "Simple & beautiful" App Store Review, 2019 "Terrific Writing and Notes App" App Store Review, 2015 "Great simple text editor" App Store Review, 2014 Immerse yourself in a minimalist writing environment designed to enhance focus and productivity. Say hello to structured, professional documents that effortlessly transform your ideas. ## MultiMarkdown Support iWriter 2 is a full-featured Markdown editor built for precision and flexibility. - MultiMarkdown support with live preview and syntax highlighting. - Wikilinks and Wiki-Embeds for connected notes. - Task lists and code blocks made simple. - Keyboard shortcuts for fast inline formatting. ## Built-in Document Manager A built-in document manager that lets you easily organize, browse, and manage all your files in one place — complete with powerful document search to quickly find exactly what you need. ## Rebuilt with TextKit 2 iWriter 2 has been completely rebuilt from the ground up using Apple’s modern TextKit 2 framework, delivering faster performance, smoother scrolling, and a more responsive writing experience. ## Multiple Export Options A refined, user-friendly interface designed for focus and productivity, offering intuitive formatting options and seamless export to multiple formats including HTML, PDF, EPUB, DOCX (Microsoft Word), and LaTeX. ## LaTeX and Mermaid Diagrams iWriter 2 offers LaTeX syntax highlighting, making complex math expressions easy to read and edit as you write. It also supports Mermaid diagrams, letting you create flowcharts, sequence diagrams, and more using simple text-based syntax. Both integrate seamlessly into your Markdown workflow, keeping technical writing and visual documentation in one place. --- Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula Privacy Policy: https://serpensoft.com/privacy-policy/
Fitting O
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.
- 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
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Use this app to find the correct O-ring for one of the many listed Hydraulic Fitting types. Select the fitting style, and the app will give you details on that style along with a list of the various common sizes and the standard O-ring that fits that size. Select a size from that list for more information about that O-Ring to help you locate it. Fittings covered are: • Flange, both Code 61 & 62 • O-Ring Face fitting • O-Ring Boss Port • BSPP, British Standard Parallel Port • ISO 6149 Metric Port • ISO 9974 Metric Port • DIN 2353 tube fittings • JIS, Japanese Industrial Standard Port (BSPP) Sizes use either the US industry standard Dash size or metric. US dash is based on 1/16" and parts are called out as: -2, -4, -6. Where -2 is 2/16" or 1/8" and -8 is 8/16" or 1/2" and so forth. Whenever possible the SAE AS568 standard O-Ring size is used. If not available then the conventional metric ID x Cross based on the fitting size is used. For the JIS Port JIS B2401 sizes are specified.
Screenshots
Verdict
The clearest difference is review sentiment: Fitting O at 100% against iWriter 2's 40%. Fitting O also leads on price (Free vs $6.99) and rating (5.0 vs 4.5). iWriter 2's advantage is ratings volume (10 vs 1) and chart position (#148 vs unranked). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Fitting O is free to download; iWriter 2 costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Fitting O holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: iWriter 2 has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of iWriter 2's written reviews are positive against 100% of Fitting O's.
| Parameter | iWriter 2 | Fitting O |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 4.5 (10 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 40.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 — better | 1 |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #148 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 181 MB |
| Age rating | 4+ | 4+ |
| Developer | Serpensoft Group | Anson Thurston |
Customer experience
iWriter 2
Fitting O
In-app purchases
iWriter 2
No in-app purchases
Fitting O
No in-app purchases









