Md Preview vs Jozai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Md Preview
View your Markdown files with exceptional clarity on iPhone and iPad. Supports all Markdown features, code syntax highlighting, LaTeX math, and Mermaid diagrams. Renders files offline and integrates with other apps.
- Full GFM support (tables, task lists, footnotes)
- Syntax highlighting for 40+ programming languages
- LaTeX math rendering with KaTeX
- Mermaid diagram support
- Offline rendering on-device
- System file handler for .md files
- Dark mode with automatic theme switching
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Md Preview renders your Markdown files with stunning clarity — right on your iPhone or iPad. Open any .md file from ChatGPT, Obsidian, Notion, GitHub, or 100+ other apps. Md Preview instantly shows a beautiful, fully-rendered preview with support for every Markdown feature you need. FEATURES • Full GFM Support — Tables, task lists, footnotes, strikethrough, and autolinks • Syntax Highlighting — 40+ programming languages beautifully colored • LaTeX Math — Inline and display equations powered by KaTeX • Mermaid Diagrams — Flowcharts, sequence diagrams, pie charts, and more • Dark Mode — Automatic theme switching that follows your system setting • 100% Offline — All rendering happens on-device. No data ever leaves your phone • Open From Anywhere — Works as a system file handler for .md files from any app • File History — Quickly reopen recent files with one tap • Share Extension — Receive Markdown files shared from other apps SUPPORTED FORMATS .md, .markdown, .mdown, .mkd, .mkdn, .mdwn, .mdtxt, .mdtext, .mdx, .rmd, .qmd Md Preview is the fastest way to read Markdown on iOS. No editing, no clutter — just a clean, beautiful preview.
Jozai
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See at a glance whether OpenAI, Anthropic, Google, and other AI services are up or down, right from your lock screen or home screen widget. • See up to 5 services at once (Operational / Minor issue / Outage) • Get notified when a service goes down or recovers (local, on-device notification — not sent from any server) • Add, remove, and reorder monitored services freely • OpenAI, Anthropic, and Google Cloud are monitored by default; add any other service • New services are tested on add, so invalid URLs are rejected • Choose your display language: follow device, Japanese, or English Notification timing depends on iOS background execution and power-saving behavior, so there may be a delay of a few minutes to tens of minutes after an outage occurs. Open the app anytime to see the latest status instantly. This app has no backend server — it connects directly from your device to each service's public status API. No personal data or usage logs are collected. This is an unofficial tool and is not affiliated with any of the services it monitors.
Screenshots
Verdict
The clearest difference is price: Jozai at Free against Md Preview's $2.99. Md Preview's advantage is update cadence (every 3 days vs every 8 days). On ads, in-app purchases, device support and iOS requirement 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
Jozai is free to download; Md Preview costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Md Preview ships an update every 3 days, Jozai every 8 days. The most recent releases landed on October 31, 2026 and October 3, 2026 respectively.
| Parameter | Md Preview | Jozai |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.4 (5 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 days — better | Every 8 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | CyberGame Limited | kondo ryohei |
In-app purchases
Md Preview
No in-app purchases
Jozai
No in-app purchases








