Comparison

Zettelkasten vs Memz LLM

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

Head to head
About

Zettelkasten

Features
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Stop losing ideas in a pile of disconnected notes. NoteOrbit is a linked-notes app that turns everything you write into a living knowledge graph โ€” every note becomes a node you can see, connect, and explore. Most note apps bury your thinking in folders. NoteOrbit does the opposite: type a note, drop a [[wiki-link]] to any other note, and the connection is built for you โ€” both ways. Open any note and you instantly see what references it. Then step back and watch your ideas orbit as a glowing constellation you can pan, zoom, and tap to follow the thread. WHAT YOU GET - Write a note, add a [[wiki-link]], and NoteOrbit autocompletes titles and wires up the connection for you - Automatic backlinks so every note shows exactly what links to it โ€” context folders can never give you - An interactive orbit graph that lays out your notes by how they actually connect - Instant tags with #hashtags to slice your notes any way you think - Hubs and orphans finder that surfaces your most-connected ideas and the notes hanging loose - Full-text search across every note, title, and link PERFECT FOR - Students and researchers building study and reference notes that reinforce each other - Writers and thinkers growing a personal knowledge base or second brain - Zettelkasten and PKM fans who want backlinks without a heavy desktop setup - Anyone journaling ideas and projects who wants to rediscover old connections WHY NOT JUST USE FOLDERS Folders force every note into one place and hide how your ideas relate. NoteOrbit lets a note live in as many contexts as it links to, then draws the map for you โ€” so the connection you made months ago is one tap away, not lost three folders deep. PRIVACY Everything stays on your device. No account, no sign-in, no ads, no tracking. Your notes never leave your phone. FULL ACCESS NoteOrbit Premium unlocks the full experience: unlimited notes and connections, the complete interactive orbit graph, hubs, tags and the orphan finder, plus Markdown export to take your notes anywhere. Choose the plan that fits: - Weekly - Yearly - Lifetime (one-time purchase) Open NoteOrbit, write your first note, and link it โ€” watch your thinking take shape. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

About

Memz LLM

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Memz is your second brain โ€” a private memory vault that lives entirely on your device. Capture anything in one tap: speak a thought and let on-device voice-to-text transcribe it, jot a note, save a photo, a screenshot, or a file. Memz reads and organizes it all into an evolving map of your memories โ€” clusters that grow and reshape as you add more, with no manual filing. Then just ask. Memz recalls what you saved with answers grounded in your own sources, and shows the evidence behind every reply. When it doesn't actually have the answer, it tells you โ€” instead of making something up. PRIVATE BY DESIGN - Everything stays on your phone. No account, no sign-up, works fully offline. - On-device processing โ€” your memories are never required to leave your device. - Sensitive memories (Care and Secret) are locked behind an unlock step and kept out of everyday search. YOU OWN YOUR DATA - Export anytime to Obsidian-compatible Markdown. - Delete derived data only, or wipe everything โ€” your call. WHAT YOU CAN CAPTURE - Voice notes with on-device transcription - Text notes and quick thoughts - Photos and screenshots, with on-device text recognition - Files and documents HOW MEMZ ORGANIZES - An evolving ontology groups related memories automatically - Review, merge, or split clusters as your thinking changes - A visual map shows how everything connects ASK YOUR MEMORY - Source-grounded recall with evidence for every answer - Scope your question; private categories stay excluded by default - No evidence, no guess โ€” Memz refuses rather than inventing No subscriptions required. No data harvesting. Just your memory โ€” organized, private, and yours.

Screenshots

Zettelkasten4 screens
Memz LLM4 screens

Verdict

The call

The clearest difference is in-app purchases: Memz LLM at none against Zettelkasten's 2. Memz LLM also leads on update cadence (every 3 days vs monthly) and iOS requirement (13.0 vs 17.0). On price, ads 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. Zettelkasten sells 2 in-app purchases, starting at $9.99 per 7 days. Memz LLM asks for nothing beyond the download.

UpkeepUpdate frequency

Zettelkasten ships an update monthly, Memz LLM every 3 days. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.

Scorecard3 real differences ยท 3 level
Zettelkasten versus Memz LLM: the parameters behind the verdict, then further details
ParameterZettelkastenMemz LLM
PriceFreeFree
Update frequencyMonthlyEvery 3 days โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPod โ€” better
Requires iOS17.013.0 โ€” better
Further details โ€” not scored
Size6 MB28 MB
Age rating4+4+
DeveloperPhuc PhamJeongmin Kim

In-app purchases

2 purchases

Zettelkasten

Subscriptions2
  • Weekly$9.997 Days
  • Yearly3 Days trial$49.991 Year
None

Memz LLM

No in-app purchases

Questions

Is Zettelkasten free?
Zettelkasten is free to download, with in-app purchases available.
Is Memz LLM free?
Memz LLM is free to download, with no in-app purchases.
Do Zettelkasten or Memz LLM have ads?
Neither Zettelkasten nor Memz LLM shows ads.
Which is updated more often, Zettelkasten or Memz LLM?
Zettelkasten ships an update monthly, and Memz LLM every 3 days. Most recently, Zettelkasten was updated on September 24, 2026 and Memz LLM on September 14, 2026.

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