Comparison

ObsiKO vs FrankenMarkdown

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

Head to head
About

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.

Highlights
  • 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
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? 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

About

FrankenMarkdown

Write, preview, and publish Markdown documents locally without sending data to a server. Offers advanced tools for document analysis, revision comparison, and multi-chapter project management. Export as PDF or HTML.

Highlights
  • Live Markdown preview
  • Syntax highlighting
  • Document statistics
  • Revision comparison
  • Multi-chapter projects
  • Local PDF/HTML export
Features
Read full description

Write Markdown, inspect the document as a system, and publish a finished file without sending the text to a server. FrankenMarkdown keeps the source and rendered document together. The editor provides live syntax highlighting, line numbers, an outline, and an automatically updated preview. On iPad and Mac, source and output can remain visible side by side; iPhone uses focused lanes sized for the smaller display. Document Lab adds the tools needed for longer work: word and reading statistics, structure and accessibility checks, semantic comparison between revisions, polished document templates, and publishing controls. Multi-chapter projects can produce a continuous PDF or a self-contained site package. Export the current document as PDF or self-contained HTML. The bundled Rust rendering engine handles typography, tables, code, mathematical notation, and document structure locally. No account, advertising, tracking, or cloud processing is required. Your text stays on the device unless you choose to share an exported file.

Screenshots

ObsiKO4 screens
FrankenMarkdown1 screens

Verdict

The call

The clearest difference is iOS requirement: ObsiKO at 15.1 against FrankenMarkdown's 17.0. 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

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 FrankenMarkdown. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard1 real difference · 8 level
ObsiKO versus FrankenMarkdown: the parameters behind the verdict, then further details
ParameterObsiKOFrankenMarkdown
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 6 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Mac
Requires iOS15.1 — better17.0
Further details — not scored
Size77 MB11 MB
Age rating4+4+
DeveloperHyojin KimJeffrey Emanuel

In-app purchases

None

ObsiKO

No in-app purchases

None

FrankenMarkdown

No in-app purchases

Questions

Is ObsiKO free?
ObsiKO is free to download, with no in-app purchases.
Is FrankenMarkdown free?
FrankenMarkdown is free to download, with no in-app purchases.
Which has better reviews, ObsiKO or FrankenMarkdown?
ObsiKO and FrankenMarkdown are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do ObsiKO or FrankenMarkdown have ads?
Neither ObsiKO nor FrankenMarkdown shows ads.

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