ObsiKO vs CaptionStudio

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.

Turn audio and video into editable, translatable, export-ready timed captions—and keep meetings and conversations on your device. CaptionStudio brings media captions, meeting notes, floating captions, and conversation translation into one app. No account is required. Media, recordings, captions, and saved translation history are processed and stored on device by default. AUDIO & VIDEO CAPTIONS • Import MOV, MP4, M4V, M4A, MP3, WAV, or AAC files, or choose a video from Photos • Generate timed captions with native speech recognition • Play, seek, correct, split, merge, and add captions on a visual timeline • Translate captions and edit original, translated, or bilingual text • Customize fonts, size, colors, outline, background, and position • Export SRT, WebVTT, or TXT, or burn captions into an MP4 video MEETING NOTES • Record audio while creating a transcript • Organize the transcript into an overview, key points, decisions, and action items • Replay the recording and edit every section • Export meeting notes with the transcript as Markdown FLOATING CAPTIONS • Use iOS system broadcasting to transcribe audio from supported apps • Follow live captions in Picture in Picture • Show original, translated, or bilingual captions • Customize window ratio, text size, lines, alignment, colors, and background • DRM, broadcast, and audio-source restrictions may prevent some content from being transcribed CONVERSATION TRANSLATION • Speak a phrase, translate it, and hear it aloud • Swap source and target languages • Keep conversation history on device and delete it at any time PRIVACY FIRST • No account, ads, or developer-operated cloud upload • No third-party analytics or advertising SDKs • iOS manages required language resources; some models may need to be downloaded before first use • Recognition, translation, and language availability depend on the device, system version, and available models New users receive a 7-day full-feature trial on first launch. After the trial, choose a one-year access purchase that does not auto-renew or a lifetime unlock. Purchases and refunds are handled by Apple. Speech recognition, translation, and generated notes can be affected by accents, noise, overlapping speakers, and system models. Review important content against the original recording or video.