Slownotes AI vs HelixNotes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slownotes AI
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The perfect companion for your physical notebook. Slownotes converts your handwriting from a physical notebook into digital text. This creates a bridge between writing the way you love and your favorite digital workflows. Writing by hand is still the best way to capture ideas and structure your thoughts. Slownotes lets you hold on to your pen and paper, while making your handwritten notes searchable, shareable and ready for AI. Send them to note-taking tools like Obsidian, Notion and others. HOW IT WORKS Scan your notes with your phone's camera. Slownotes transcribes and polishes your handwriting into clean, digital text. Use Slowdown, our markup language for handwriting, to mark things like people, places, ideas and quotes. Slownotes recognizes them and turns them into linked, searchable items in your library. SEND YOUR HANDWRITTEN NOTES ANYWHERE Your notes, your rules. Slownotes can send your notes to Obsidian, Notion, or any webhook of your choosing. This opens up integrations with n8n, AI agents, and any tool that can receive HTTP requests. Slownotes integrates your handwritten notes seamlessly with your digital workflows. SLOWDOWN - The markup language for handwritten notes. Use symbols in your handwriting to mark people, ideas, quotes and other key elements. Slownotes recognizes them when it scans your page. Marked elements can become linked, filterable items in your library or can even trigger actions from Slownotes. Examples: - Tag people with @name - Tag key subjects with #term - Mark something with (term)* to instruct Slownotes to bring in context Slowdown is a completely new approach to structuring text, designed specifically for people who love writing by hand. It works in any notebook, with any pen. --- Slownotes. No more downsides to handwriting. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
HelixNotes
A private, open-source Markdown note-taking app that keeps your data on your device. Organize notes with notebooks, tags, and wiki links, and utilize advanced features like mathematical notation and diagrams.
- Local Markdown storage
- Visual and source code editor
- Notebooks, tags, and wiki links
- Task management and calendar views
- KaTeX and Mermaid diagram support
- Version history and backups
- Optional WebDAV sync
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HelixNotes is a private, open-source Markdown notes app. Your notes remain standard Markdown files under your control. No account is required, and HelixNotes has no company-operated cloud. Write with a clean visual editor or switch to source mode when you want direct access to the Markdown. Organize your work with notebooks, tags, wiki links and full-text search. Features include: • Tasks collected from checklists across your notes • List and calendar views with priorities and due dates • Wiki links and an interactive graph view • Daily notes with a built-in calendar • Markdown tables, code blocks and syntax highlighting • KaTeX mathematical notation and Mermaid diagrams • Outline navigation and tag autocomplete • Version history and automatic backups • Light, dark and customizable themes • Optional WebDAV sync with your own server • Optional AI tools using your own provider Nothing leaves your device unless you enable a feature that connects to an external service. Your notes stay readable outside HelixNotes, without a proprietary format or platform lock-in. HelixNotes is free software released under the GNU AGPLv3. Its source code is publicly available on GitLab.
Screenshots
Verdict
The clearest difference is in-app purchases: HelixNotes at none against Slownotes AI's 4. HelixNotes also leads on device support (3 vs 1) and iOS requirement (14.0 vs 26.0). On price, update cadence and ads 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
Both are free to download. Slownotes AI sells 4 in-app purchases, starting at $7.99 per month. HelixNotes asks for nothing beyond the download.
Slownotes AI ships an update every 2 months, HelixNotes monthly. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.
| Parameter | Slownotes AI | HelixNotes |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Bastiaan van Dreunen | Yuri Karamian |
In-app purchases
Slownotes AI
- Personal subscription - Monthly$7.991 Month
- Professional subscription - Monthly$12.991 Month
- Personal subscription - Annual$79.991 Year
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- Professional subscription - Annual$129.991 Year
HelixNotes
No in-app purchases









