ObsiKO vs DoTree
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ObsiKO
This app integrates writing, knowledge management, and mind mapping with AI assistance. It supports various file formats and offers unique features for Korean language users, including a focus timer and GitHub syncing for secure data management.
- AI-assisted writing and mind mapping
- Supports Obsidian vaults (.md, .canvas, .base)
- Korean dictionary and spell checker
- Lock Screen focus timer
- GitHub sharing and syncing
- Automatic note connection and organization
- Infinite mind-map canvas with Apple Pencil support
Read full descriptionHide 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? Writing, knowledge management, mind maps, reading logs, codices, schedules, file conversion — all in ObsiKO, with no login, payment or subscription. Obsidian vaults (.md·.canvas·.base) open as-is. (AI uses your own API key. With Apple Intelligence on, no key needed.) ■ Made for iPhone Duo · Folded: floating glass buttons and your favorite menus on the right strip · Unfolded: an iPad-style layout with a pinned side panel, books in two pages · Half-folded: the app on top, the keyboard below — like a small laptop ■ Built for Korean · A Korean dictionary and spell checker from the National Institute of Korean Language's data — no key · 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" opens a note at one address — theme, tables, images, comments. Stored in your GitHub, not on our servers · Sync devices through your own repository. Share your LLM wiki as one file or a subscription link that follows your edits ■ 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 note of the same name. Define your own types and relations ■ A graph like the night sky · Links, types, relations and PARA form one constellation — more links, brighter stars · Names appear as you zoom in, and your layout is remembered ■ Infinite mind-map canvas (.canvas) · Apple Pencil drawing, sketches into AI images. Ask the AI and it builds, sizes and colors the map · Grow cards with Enter and Tab, drop in URLs and files. 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, mini games, AI briefing, tarot. 20+ themes, your own fonts · Calm 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, TRPG characters, world sheets) · Socratic questions, genre feedback, style polish, your own assistants, on-device translation, read-aloud · One search across dictionaries, thesaurus, hanja, proverbs and Wikipedia ■ Schedules · A date in any file lands on the calendar (Obsidian Tasks compatible) — year to timeline views, widgets, writing reminders ■ Viewers from one line of front matter · Book view (two pages, page turns that follow your finger, covers in the note's color), web-novel view (platform presets) · Messenger and visual-novel views — record the screen and it's a short. Codex view with auto profile icons ■ Clip, convert, export · Web clipper and RSS. Import from Apple Notes, Notion, Evernote, Bear, Logseq and Roam · doc, docx, PDF, hwp and hwpx to Markdown, a reference view for dozens of formats, 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, Zettelkasten folders, slash commands, a prompt helper, MCP No login, no payment, no subscription, no ads. Tell us about bugs anytime. ■ Supported · iPhone, iPad, Mac, Apple Watch / Korean, English, Japanese, Chinese (Traditional, Simplified) · Ready for iOS 27 and iPhone Duo
DoTree
Organize tasks and projects with an unlimited, nested structure. Prioritize tasks using an Eisenhower matrix and forecast your workload. Dictate tasks and sync with Apple Calendar and Reminders.
- Unlimited nested task structure
- Active view for prioritized tasks
- Eisenhower matrix for urgency/importance
- Workload forecasting
- Voice dictation for task creation
- Integration with Apple Calendar and Reminders
- Data export to JSON
Read full descriptionHide full description
Most task apps flatten your life into a list. DoTree doesn't. Here you break a goal down as far as you actually think — from the big ambition to the next small step. Folders inside folders, like a file system. Everything draggable, like files. And when it's time to work, you never have to look at the tree: the Active view shows only what's due now. • A TREE, NOT A LIST: unlimited depth, projects with progress bars — weighted by effort if you want • WHAT'S ACTUALLY DUE: the Active view pulls today out of a thousand tasks, grouped by date or by priority • IMPORTANT, OR MERELY URGENT: an Eisenhower matrix separates the two — and shows what's allowed to wait • BEFORE YOU OVERCOMMIT: the Forecast adds up every day's hours and flags the ones where you've planned more than fits • SPEAK IT INSTEAD OF TYPING: say what's on your mind and DoTree turns it into a structured outline with dates and effort, on device, for you to review before anything is created • RECURRENCE THAT THINKS: fixed to a date even when things pile up, or starting over once you're done — weekdays, month days, multi-year rhythms • DATES THAT INHERIT: subtasks take start and due dates from above, with optional times • YOUR OWN ORDER: contexts with icons and colors, life areas, stars, and an idea store for everything that isn't a commitment yet • APPLE CALENDAR: task time spans appear as entries in dedicated DoTree calendars, and move along when your dates change • REMINDERS: push tasks to Apple Reminders and check them off on either side — done is done, everywhere • ATTACHMENTS: photos straight from the camera, voice notes, videos, files • BRING YOUR STUFF: import from MyLifeOrganized (XML), export everything as JSON whenever you like • EVERYWHERE YOU WORK: iPhone, iPad, and Mac — with a widget and optional Face ID lock YOUR DATA STAYS YOURS No account. No sign-up. No subscription, no ads, no analytics, no trackers. Your content lives on your device and syncs through your own private iCloud — we run no server and cannot read any of it. Dictation stays on your device by default, too. DoTree is free, and it stays free. Your plan. Your tree. Your data. DoTree is not affiliated with MyLifeOrganized.
Screenshots
Verdict
The clearest difference is update cadence: DoTree at every 2 days against ObsiKO's every 6 days. ObsiKO's advantage is iOS requirement (15.1 vs 18.0). 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 DoTree. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
ObsiKO ships an update every 6 days, DoTree every 2 days. Both last shipped on October 31, 2026.
| Parameter | ObsiKO | DoTree |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 6 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Mac |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 77 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Hyojin Kim | Lars Bruckschen |
In-app purchases
ObsiKO
No in-app purchases
DoTree
No in-app purchases








