ObsiKO vs Pellet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ObsiKO
This app combines note-taking, mind mapping, and file management with AI assistance. It supports handwritten notes, custom planners, and integrates with Obsidian vaults. Features include a focus timer, web sharing via GitHub, and a unique graph visualization.
- AI-assisted note-taking and mind mapping
- Handwritten notes with real paper textures
- Focus timer with Lock Screen integration
- GitHub integration for sharing and syncing
- Interactive graph visualization of knowledge
- Support for Obsidian vaults (.md, .canvas)
- Korean language dictionary and spell checker
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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? Writing, knowledge management, mind maps, reading logs, codices, schedules, file conversion — all in ObsiKO, with no login, payment, subscription or ads. Obsidian vaults (.md·.canvas·.base) open as-is. (AI uses your own API key. With Apple Intelligence on, no key needed.) ■ Notebooks and planners you write by hand · Notebook cards on your mind map, 23 papers — lined, Cornell, manuscript grid. Export as one PDF · Pens, brushes, pencils, crayon and chalk, with sounds recorded on real paper · A dated year planner as one PDF for your note-taking app or printer · Stickers and washi tape on the page of your note. Handwriting turns into text on the device ■ Made for iPhone Duo · Folded: floating glass buttons on the right strip. Unfolded: an iPad-style layout, books in two pages · Half-folded: the app on top, the keyboard below — like a small laptop ■ Built for Korean · The ObsiKO Korean Dictionary and spell checker, from the National Institute of Korean Language's data — no key · 860+ newer words not yet in the official dictionaries, and hanja input · A "Korean word of the day" widget ■ A focus timer on your Lock Screen · A dial like a real pomodoro clock — tap or drag the ticks in 1-minute steps · Start from the widget without opening the app; time left on the Lock Screen, in StandBy and the Dynamic Island ■ Share and sync (GitHub) · "Share to the web" turns a note into one link, stored in your GitHub, not on our servers · Sync devices through your own repository, and share your LLM wiki by subscription link ■ Write once, it connects itself · One "color" property tints tabs, headers, tree icons, .base and codex cards · Type "book" and a search fills in the rest; "project" adds dates to the calendar · Highlight a PDF and quotes collect in a matching note. ■ A graph like the night sky · Links, types, relations and PARA form one constellation — more links, brighter stars ■ Infinite mind-map canvas (.canvas) · Apple Pencil drawing — sketches into mind maps (iOS 27) or AI images. Ask the AI and it builds, sizes and colors the map · Enter and Tab grow cards. 5 styles, 10+ presets, auto-built maps & dungeons ■ .base files and search · Projects, kanban, cards, charts, a library, PARA and a budget. Dataview queries become tables · Search filenames, full text, Korean jamo, meaning and word forms. Find books and papers, or just ask Siri ■ Dashboard, themes and Markdown · 50+ widgets — calendar, habits, stats, D-day, mini games, AI briefing, tarot. 20+ themes, your own fonts · Editing tuned for Korean, a format bar, Mermaid, 20+ charts, inline drawing, embeds ■ Writing helper · 70+ structures across 13 genres (Hero's Journey, Save the Cat and more) · Socratic questions, genre feedback, style polish, your own assistants, on-device translation, read-aloud ■ Schedules · A date in any file lands on the calendar (Obsidian Tasks compatible) — calendar views, widgets, writing reminders ■ Viewers from one line of front matter · Book view (two pages, real page turns), web-novel view (platform presets) · Messenger and visual-novel views — record the screen and it's a short. ■ Clip, convert, export · Web clipper, RSS and a Memo Box for loose thoughts. Import from Apple Notes, Notion, Evernote, Bear, Logseq and Roam · doc, docx, PDF, hwp and hwpx to Markdown, AI OCR and transcription · Slides with Marp. Export to PDF, HWPX, DOCX, EPUB, HTML, ZIP and wikis ■ AI agent · Just add an API key (Claude, Gemini, GPT) — the app works fully without one · Mind maps and tables on your phone, voice input, and a plan card before big changes · Auto memory, LLM wikis, slash commands, a prompt helper, MCP Tell us about bugs anytime. ■ Supported · iPhone, iPad, Mac, Apple Watch / Korean, English, Japanese, Chinese (Traditional, Simplified) · Ready for iOS 27 and iPhone Duo
Pellet
Organize notes, tasks, and projects using plain markdown files. Features include a live preview editor, wiki-style linking, task management with Kanban boards, and calendar integration. Supports offline use, handwriting, voice notes, and user-controlled syncing.
- Plain markdown notes
- Live preview editor
- Wiki-style linking
- Task management with Kanban
- Calendar integration
- Handwriting and voice notes
- User-controlled sync
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Pellet keeps your notes as plain markdown files in a folder you own. No account, no server, no proprietary format — open the same folder in any other editor and everything is still there. AN EDITOR THAT STAYS OUT OF THE WAY Write in markdown with live preview, wiki-style links between notes, backlinks, tags and full-text search. Your vault is just files, so nothing is trapped behind an export button. A TASK MANAGER THAT LIVES IN YOUR NOTES Tasks are ordinary markdown files with front matter, so a task can be a note and a note can be a task. Due dates, recurrence, subtasks, checklists and kanban boards — all reading from the same folder. CALENDAR ALONGSIDE YOUR WORK See your day next to your notes. Connect Google Calendar or your existing calendar accounts, or work entirely offline with dated notes. CANVAS, HANDWRITING AND VOICE Sketch on an infinite canvas, write by hand with Apple Pencil, and record voice notes. Handwriting and recordings can be turned into searchable text so they join the rest of your vault instead of sitting in a corner. SYNC YOU CONTROL Sync between your devices is end-to-end encrypted and runs through a relay you choose or host yourself. There is no Pellet account and no Pellet server holding your notes. WORKS OFFLINE, ALWAYS Everything works with no network. Nothing is fetched to open a note, and nothing phones home. Pellet reads and writes ordinary markdown, so it fits alongside whatever else you already use.
Screenshots
Verdict
The clearest difference is update cadence: ObsiKO at every 6 days against Pellet's every 2 weeks. ObsiKO also leads on device support (4 vs 2). 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
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 ObsiKO against 5.0 for Pellet. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
ObsiKO ships an update every 6 days, Pellet every 2 weeks. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.
| Parameter | ObsiKO | Pellet |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 6 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 82 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Hyojin Kim | Buildraai LLC |
Customer experience
ObsiKO
Pellet
In-app purchases
ObsiKO
No in-app purchases
Pellet
No in-app purchases








