Comparison

Zen Slate vs Metis

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Zen Slate

Features
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Turn voice memos into notes you can organize. Zen Slate brings rich-text notes, voice transcription and to-dos together, with camera scanning and Apple Pencil drawing on supported devices. WRITE, RECORD AND SCAN Use headings, bold, italics, quotes, code blocks, highlights and checklists. Add photos, PDFs and files. Record a voice note with on-device transcription, or scan a document with the camera on supported devices. Transcription availability depends on language, device and speech support. NOTES THAT TURN INTO ACTION Keep to-dos alongside your notes. Add a date, reminder, priority or repeat to a task, then see tasks together and plan them on a calendar. Checklists inside a note stay with that note. Optional Apple Reminders integration is off until you choose it. DRAW ON IPAD Sketch with Apple Pencil using pens, markers, a highlighter, eraser, lasso and ruler. Drawings remain editable after you save them. FIND YOUR WAY BACK Organize with nested categories, tags and smart folders. Search your writing, bookmark a note, and link related notes with double brackets. Backlinks show where a note is referenced. BRING YOUR NOTES WITH YOU Import Markdown folders with their structure, tags and dates. Import supported Evernote ENEX, RTF and HTML files. Export your library as JSON when you need it. YOUR DEVICE AND YOUR ICLOUD No Zen Slate account is required. Notes are stored on your device; sync uses your own iCloud account rather than our servers. Supported devices can protect individual notes with biometric authentication. CAPTURE WITHOUT THE DETOUR Use widgets, the share sheet, Shortcuts and Spotlight to reach your notes. Features vary by platform; camera scanning and Apple Pencil drawing require supported iPhone or iPad hardware. FREE AND PRO Start with five slates for free. Pro removes the limit and adds sync, widgets, backup and export. Choose a yearly subscription or a one-time purchase. The one-time purchase does not renew. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel in your Apple Account subscription settings. See current pricing in the app. Privacy Policy: https://www.zenproducts.ai/apps/zen-slate/privacy Terms of Use: https://www.zenproducts.ai/apps/zen-slate/terms Support: hello@zenproducts.ai

About

Metis

Read full description

Metis is a native Markdown editor and local-first knowledge base. Your notes are just .md files in a folder you own - Metis is a fast, beautiful, native view over them. No lock-in, no proprietary format, no account required to write. WRITE IN LIVE PREVIEW A clean Obsidian-style editor styles your Markdown as you type - headings, bold, lists, quotes and code - while keeping the raw syntax one tap away. It feels like writing in a document, not in code. On iPad it's a full three-pane workspace with hardware-keyboard shortcuts. CONNECT YOUR IDEAS Link any two notes with [[wiki links]]. Backlinks appear automatically, so you always see what references the note you're reading. An interactive link graph shows your whole knowledge base at a glance - zoom, pan, and drag nodes to explore the connections. READ BEAUTIFULLY Reading mode renders the full document: headings, tables, task lists, images, syntax-highlighted code, Mermaid diagrams, and real math (LaTeX) rendered natively - no web view. ORGANIZE YOUR WAY Tag anything with #tags, group notes into folders, and see typed properties (status, owner, due...) that live as YAML front matter and are preserved as you edit. A fast switcher and full-text search get you anywhere instantly. ON-DEVICE AI (Apple Intelligence) Summarize a note, suggest tags or related links, and ask your whole vault a question - all running privately on your device. AI is optional; the app is fully functional without it. SYNC ACROSS YOUR DEVICES Keep your vault in iCloud and the same notes are on your Mac, iPad and iPhone - still as plain .md files you can open anywhere. Edits sync in the background, and Metis helps you resolve conflicts if two devices change the same note. LOCK WHAT MATTERS Any note can be locked with your notes password and opened with Face ID or Touch ID. Locked notes are encrypted on disk and stay encrypted in iCloud - and they're kept out of search and previews. PRIVATE AND YOURS Everything stays in plain files on your device. No tracking, no cloud lock-in. Open the same folder in any other Markdown editor whenever you like. Import an existing folder of notes (from Obsidian or anywhere) and Metis just works. ONE PURCHASE, ALL YOUR DEVICES A single one-time purchase unlocks Metis Pro on your Mac, iPad and iPhone - no subscription. Try everything free for 7 days. Metis is made by Empiric Apps. Questions or feedback? contact@empiricapps.com

Screenshots

Zen Slate4 screens
Metis4 screens

Verdict

The call

The clearest difference is update cadence: Metis at every 2 days against Zen Slate's every 6 days. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Zen Slate sells 2 in-app purchases, starting at $19.99 per year and Metis sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Zen Slate ships an update every 6 days, Metis every 2 days. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

Scorecard1 real difference ยท 5 level
Zen Slate versus Metis: the parameters behind the verdict, then further details
ParameterZen SlateMetis
PriceFreeFree
Update frequencyEvery 6 daysEvery 2 days โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Mac โ€” betteriPhone, iPad
Requires iOS17.0 โ€” better18.0
Further details โ€” not scored
Size23 MB14 MB
Age rating4+4+
DeveloperZenProducts Technologies Pvt. Ltd.Burlac Mihail

In-app purchases

2 purchases

Zen Slate

Subscriptions1
  • Zen Slate Pro Annual$19.991 Year
One-time1
  • Zen Slate, bought once$49.99
1 purchases

Metis

One-time1
  • Metis Pro$19.99

Questions

Is Zen Slate free?
Zen Slate is free to download, with in-app purchases available.
Is Metis free?
Metis is free to download, with in-app purchases available.
Do Zen Slate or Metis have ads?
Neither Zen Slate nor Metis shows ads.
Which is updated more often, Zen Slate or Metis?
Zen Slate ships an update every 6 days, and Metis every 2 days. Most recently, Zen Slate was updated on October 10, 2026 and Metis on October 25, 2026.

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