HelixNotes vs balu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
balu
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balu is a calm, fast todo app with one big difference: your tasks live on a server you choose and run. Perfect for your homelab: one docker-compose, no account with us, no cloud subscription, no vendor lock-in - just open-source software and your own data. PLAN LIKE YOU THINK • Start dates and deadlines are separate: decide when to begin, independent of when something is due • Today with a This Evening section, Upcoming, Anytime, Someday and a Logbook • Projects with sections, labels, priorities and repeating tasks CAPTURE AT THE SPEED OF THOUGHT • Quick add understands natural language in English and German: "call Sam friday 5pm" or "Wäsche waschen jeden zweiten Dienstag" • Live token highlighting shows what balu understood while you type WORKS OFFLINE, REALLY • A full copy of your tasks lives on your device • Add, edit and complete in airplane mode; everything syncs when you're back SHARE WITH YOUR PEOPLE • Workspaces with roles, from full editor down to read-only • Assign tasks, discuss them in comments, see everything assigned to you REMINDERS YOUR WAY • Local notifications on your device • Optional nudges through ntfy, email or Telegram from your own server SELF-HOSTED & OPEN SOURCE • MIT-licensed, deployed with a single docker-compose on your hardware • The app connects to the server URL you enter - nothing else balu requires a self-hosted balu server. Set one up in minutes: https://blaumedia.com/balu
Screenshots
Verdict
The clearest difference is update cadence: balu at fortnightly against HelixNotes's monthly. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HelixNotes ships an update monthly, balu fortnightly. Both last shipped on October 31, 2026.
| Parameter | HelixNotes | balu |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 20 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuri Karamian | blaumedia GmbH |
In-app purchases
HelixNotes
No in-app purchases
balu
No in-app purchases









