OpenMark vs OneUptime On
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenMark
This app offers a native Markdown editor for iPhone and iPad, rendering files with full formatting including code, math, and diagrams. It supports offline editing and export to PDF or HTML, with multiple themes and an outline sidebar on iPad.
- Full Markdown rendering
- KaTeX math equations
- Mermaid diagram support
- Interactive checkboxes
- Export to PDF/HTML
- Offline functionality
- Multiple themes
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OpenMark brings beautiful markdown rendering to your iPhone and iPad. Open any .md file from iCloud Drive, Files, or any file provider and see it rendered with full formatting — headings, code blocks, tables, math equations (KaTeX), diagrams (Mermaid), GitHub-style alerts, and interactive checklists. Features: - Full markdown rendering with syntax-highlighted code blocks - KaTeX math equations — inline and display mode - Mermaid diagrams rendered natively - GitHub-style alerts (Note, Tip, Important, Warning, Caution) - Interactive checkboxes — tap to toggle, changes save back to file - Export to PDF or HTML, copy as markdown - Outline sidebar on iPad for quick navigation - Dark mode support - 4 themes: Default, Nord, Solarized, One Dark - Works offline — all rendering is bundled, no internet required - Universal Purchase — buy once, get both Mac and iOS Edit your markdown on Mac with the full OpenMark editor. Read anywhere on iPhone and iPad.
OneUptime On
Monitor and manage your online services with this comprehensive solution. It alerts your team to downtime and keeps customers informed via a status page.
- Monitor website availability
- Track dashboard status
- Check API uptime
- Receive downtime alerts
- Publish status pages
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OneUptime is a comprehensive solution for monitoring and managing your online services. Whether you need to check the availability of your website, dashboard, API, or any other online resource, OneUptime can alert your team when downtime happens and keep your customers informed with a status page.
Screenshots
Verdict
The clearest difference is price: OneUptime On at Free against OpenMark's $9.99. OneUptime On also leads on iOS requirement (16.4 vs 18). 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
OneUptime On is free to download; OpenMark costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | OpenMark | OneUptime On |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18 | 16.4 — better |
| Further details — not scored | ||
| Size | 7 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Rotate, LLC. | HackerBay, Inc. |
Customer experience
OpenMark
OneUptime On
In-app purchases
OpenMark
No in-app purchases
OneUptime On
No in-app purchases









