Comparison

ObsiKO vs ViiTor Memo:AI Voice Memory

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

Head to head
About

ObsiKO

Features
Read full description

Tired of converting files or picking plugins? Spent the day on settings and never wrote a line? Plenty of features, none of them talking to each other? Everyday writing, LLM wikis, ontologies, Zettelkasten, mindmaps, reading logs, codices, schedules, file conversion — one app, no account or subscription. Obsidian vaults (.md/.canvas/.base) open as-is. (AI runs on your own API key; with Apple Intelligence on, it can run on the device with no key.) ■ You see it first, before anything changes · AI rewrites arrive as a suggestion card — nothing changes until you press Replace · The AI agent works on a copy; only what you pick reaches your notes · Before the first send to an outside AI, it shows what goes where and sends only if you allow ■ Share to the web, sync between devices (GitHub) · "Share to the web" publishes a note at one address — theme, tables and images intact, comments too · The text lives only in your GitHub account, never on our servers; "Stop sharing" takes it down · Sync runs through your own repository and only ever deletes to the trash ■ Write once, it connects itself · A "color" property colors the tab, header, tree icon, .base and codex cards. Define your own types and relations too · Type "book" pops a search that fills the rest; "project" adds start/due to the calendar · Highlight a PDF and quotes collect into a note of the same name, searchable and on the graph · Wiki links, types, relations and PARA form one constellation — more links, brighter star ■ Infinite mindmap canvas (.canvas) · Apple Pencil drawing — turn a sketch into an AI image. Have AI build an editable mindmap, or hand it yours · Auto-build from a note's links, auto-layout, embeds, groups, relations. 5 styles, 10+ presets. Drop a URL or file to add a card ■ .base files and search · Projects, kanban, cards, charts, a library (book/paper search), PARA, a budget that pastes receipts. Dataview queries become tables · Filenames, full text, Korean jamo, semantic search — pin results, bookmark a query, or ask Siri ■ A dashboard and themes you arrange · 50+ widgets plus query and embed boards — calendars, to-dos, habit trackers, stats. 20+ themes, your own fonts ■ Markdown and a writing helper · Calm editing tuned for Korean. Format bar and cheat sheet, Mermaid, 20+ charts, inline drawing, video in a note · 70+ structures across 13 genres (Hero's Journey, Save the Cat, SCQA, character sheets), Socratic questions and style polish · Spell check, dictionaries, device TTS, a saved assistant role, on-device translation ■ Schedules and viewers · A date in any file lands on the calendar (Obsidian Tasks compatible) — year/month/week/day, timeline, widget, reminders · One frontmatter line switches the viewer: book, web novel, messenger, visual novel, codex ■ Clipping and conversion · The article body and photos become a note, not just the URL — share button or RSS · One-click Markdown for doc/docx, PDF, hwp/hwpx — one file or a folder; a read-only panel opens dozens more · Import from Apple Notes, Notion, Evernote, Bear or Logseq — always into a new folder · Highlight PDFs and Markdown to insert or quote. AI OCR and transcription (labelled by speaker) ■ AI agent · Add an API key and go (Claude, Gemini, GPT) — the app is complete without one · Builds mindmaps and .base tables on your phone and reads existing ones. Read-aloud and images in the editor · File creation, automatic memory, LLM wikis, ontology and Zettelkasten design, MCP. Bulk work is desktop-only ■ Export, images, and everything else · Marp properties make a deck. Export to PDF, HWPX, DOCX, EPUB, HTML, ZIP, wiki markup · Dictate on iPhone (on device), Control Center, Lock Screen and Home widgets, Watch quick notes · Ready for iOS 27 — Markdown round-trips with Apple Notes, the new Siri can add to a note, 4×6 widget · Image editing, free image search, colors panel, routines, palette, focus timer, screen lock All of it is free. No account, no payment, a small download.

About

ViiTor Memo:AI Voice Memory

This app uses AI to record, transcribe, and summarize conversations. It helps organize notes from meetings, interviews, and classes into projects for easy review and access to key information.

Highlights
  • AI Transcription
  • AI Summaries
  • Record and Review
  • Organize by Project
  • Real-time Transcription
  • Actionable Insights Extraction
Features
Read full description

ViiTor Memo — Your AI Memory Assistant Capture what matters. Let Memo remember the rest. Important moments happen in everyday conversations—a meeting, a quick discussion, a passing thought, or an idea worth keeping. ViiTor Memo is more than an AI voice recorder. It's your personal AI memory assistant, turning conversations into organized, searchable knowledge you can revisit and put to use anytime. Capture Conversations, Stay Present Record meetings, lectures, project discussions, and everyday conversations with real-time transcription. Stay focused on the moment while Memo captures the details. Turn Conversations Into Useful Memories Let AI turn your recordings into clear notes, highlighting key takeaways, important decisions, and action items. Everything stays organized and easy to revisit. Find What Matters, Just Ask AI What did we decide in the last meeting? What was discussed about that project? Simply ask AI to find relevant information in your saved records—no need to replay recordings or scroll through lengthy transcripts. Connect Your Memory to AI Agents Bring your saved knowledge into the AI tools you already use. Connect compatible AI agents through supported integrations, allowing them to access authorized notes and relevant context. Spend less time copying information or explaining the same background again. Turn Conversations Into Action Automatically extract action items from conversations, organize your to-dos, and pin important tasks to keep your priorities clear. ViiTor Memo — Turn everyday conversations into knowledge you can use again and again.

Screenshots

ObsiKO4 screens
ViiTor Memo:AI Voice Memory4 screens

Verdict

The call

The clearest difference is update cadence: ViiTor Memo:AI Voice Memory at every 2 days against ObsiKO's every 6 days. On price, rating, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ObsiKO against 5.0 for ViiTor Memo:AI Voice Memory. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

ObsiKO ships an update every 6 days, ViiTor Memo:AI Voice Memory every 2 days. Both last shipped on October 24, 2026.

Scorecard1 real difference · 9 level
ObsiKO versus ViiTor Memo:AI Voice Memory: the parameters behind the verdict, then further details
ParameterObsiKOViiTor Memo:AI Voice Memory
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—94.4% of reviews
Number of ratings12 — better
Update frequencyEvery 6 daysEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS15.115.0 — better
Further details — not scored
Size75 MB56 MB
Age rating4+4+
DeveloperHyojin KimViiTor Tech Ltd.

Customer experience

ObsiKO

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ViiTor Memo:AI Voice Memory

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews18 reviews
Positive94.4%
Neutral5.6%
Negative0.0%

In-app purchases

None

ObsiKO

No in-app purchases

None

ViiTor Memo:AI Voice Memory

No in-app purchases

Questions

Is ObsiKO free?
ObsiKO is free to download, with no in-app purchases.
Is ViiTor Memo:AI Voice Memory free?
ViiTor Memo:AI Voice Memory is free to download, with no in-app purchases.
Which has better reviews, ObsiKO or ViiTor Memo:AI Voice Memory?
ObsiKO and ViiTor Memo:AI Voice Memory are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do ObsiKO or ViiTor Memo:AI Voice Memory have ads?
Neither ObsiKO nor ViiTor Memo:AI Voice Memory shows ads.
Which is updated more often, ObsiKO or ViiTor Memo:AI Voice Memory?
ObsiKO ships an update every 6 days, and ViiTor Memo:AI Voice Memory every 2 days. Most recently, ObsiKO was updated on October 24, 2026 and ViiTor Memo:AI Voice Memory on October 24, 2026.

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