Zirbe vs ZenNotes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zirbe
This email client reimagines your inbox as a familiar chat interface, organizing threads by subject and messages as bubbles. It offers full email functionality, including attachments, drafts, and organization, while prioritizing privacy and offline access. The app connects directly to your IMAP/SMTP servers without any Zirbe servers.
- Chat-style email interface
- Organized threads by subject
- Offline access and instant inbox
- Attachment support (photos, files, voice)
- Full email client functionality
- Privacy-focused, no Zirbe servers
- Open-source code
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Zirbe is an email app that looks and feels like a texting app while keeping real email underneath. A conversation in Zirbe is a mail thread, not a person: the subject is the title, the people on it are the members, and every message is a bubble in time order. The same person writing you about five different things becomes five conversations, which is how email actually works. Starting a new conversation means naming it, and that name is the subject. Underneath the chat is a full email client. Read and reply with bubbles, attach photos, files, or a recorded voice message, and open what you receive in a full preview to save or share it. Reach every folder, not just the inbox: archive, move, and organize, save and resume drafts, and send blind copies that stay blind. React to a message with a tapback that rides your own mail as a real reply, so another Zirbe user sees the badge and every other mail app sees a readable line. Search within a conversation, pin the threads that matter to the top, and block a sender to sweep their mail to Junk and keep it there. New mail arrives with a local notification and a badge, and a reply that fails to send waits as a tap-to-retry bubble instead of vanishing. Sender photos come from your own contacts, and typing a recipient suggests people from your address book. A meeting invitation shows up as a meeting: a card with the time, the title, who's organizing, and where, with a Join button when there's a Teams, Meet, Zoom, or Webex link, and Add to Calendar puts it in your calendar with Apple's own event editor. The invitation, its updates, a cancellation, and everyone's replies land in one conversation. Zirbe is private by construction, not by promise. It connects only to your own IMAP and SMTP servers over an encrypted connection. There is no Zirbe server, no account to create with us, no analytics, no telemetry, and no third-party SDK. Your mail is cached on your device so the inbox opens instantly and works offline; your password lives in the device Keychain and is never synced off the device. Remote images in HTML mail are blocked until you choose to load them, so opening a message never phones home. Because the whole app is open source, every one of these claims is something you can check for yourself. Zirbe works with any email provider that supports standard IMAP and SMTP with an app-specific password. Sign in with your address and an app password, and if your provider is a common one the server settings fill in for you. Zirbe is free and MIT-licensed. It is an independent app and is not affiliated with or endorsed by Apple. iMessage and Messages are trademarks of Apple Inc.
ZenNotes
This app allows you to create and manage notes using plain Markdown files. It offers flexible storage options, rich text formatting with live previews, and powerful organization tools like task management and note linking. Designed for both phone and tablet, it prioritizes user privacy with no accounts or tracking.
- Plain Markdown file storage
- Live rich text previews
- Wikilinks and #tags
- Vault-wide task management
- Table databases as CSV
- Excalidraw drawing support
- Share extension for quick capture
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ZenNotes is a local-first markdown notes app for writing, organizing, and connecting ideas without giving up ownership of your files. YOUR NOTES, YOUR FILES Every note is a plain .md file in a vault you control. Start with storage on your iPhone or iPad, use iCloud Drive, or open a folder through the system document picker. Local and iCloud vaults work without an account. ZENNOTES CLOUD Connect an optional ZenNotes Cloud plan to: • Sync a vault across ZenNotes desktop and mobile • Sync notes and attachments • Create manual and automatic daily backups • Restore a full vault or a single note from a backup • Publish notes to the web and manage their public links Cloud never replaces the free local-first workflow. Use it only when you want hosted sync, backup, or publishing. WRITE IN MARKDOWN Use a focused editor with headings, lists, tasks, tables, code, links, wikilinks, tags, callouts, footnotes, and frontmatter. A mobile formatting bar keeps common actions close to the keyboard, and a pinch resizes the text to your eyes. RICH, OFFLINE PREVIEW Render KaTeX math, Mermaid diagrams, JSXGraph, function plots, tables, callouts, and more directly on your device. ORGANIZE YOUR WAY Pin your go-to notes and folders to the top, swipe rows to act on them, create and rename nested folders, browse tags, search the full vault, manage tasks, create periodic notes, and work with table databases stored as CSV. CAPTURE QUICKLY Create a quick note from the app or send text and links to ZenNotes from the iOS share sheet. HOME SCREEN WIDGETS Start a note, open a recent one, or check today's tasks without opening the app. New Note also lives on the Lock Screen, and the widgets wear your theme. PRIVACY BY DEFAULT ZenNotes has no advertising or tracking. Local and iCloud notes stay in the storage you choose. When you enable ZenNotes Cloud, the account identity, connected-device information, and vault content needed for the Cloud features you use are sent to the ZenNotes service. Payment details are handled by Stripe. ZenNotes is open source. Your vault remains useful outside the app because it is made of ordinary files.
Screenshots
Verdict
The clearest difference is update cadence: ZenNotes at every 2 days against Zirbe's every 6 weeks. ZenNotes also leads on ratings volume (11 vs 1) and device support (3 vs 1). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for Zirbe against 4.9 for ZenNotes. That said, the two scores are not equally well evidenced: ZenNotes has 11 ratings behind it against 1, so its average is the more settled of the two.
Zirbe ships an update every 6 weeks, ZenNotes every 2 days. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.
| Parameter | Zirbe | ZenNotes |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (11 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 11 — better |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Excelano LLC | Lumary Labs LLC |
Customer experience
Zirbe
ZenNotes
In-app purchases
Zirbe
No in-app purchases
ZenNotes
No in-app purchases









