Mochi vs Obsidian: pricing, features and which to choose

Plans, prices, deployment options, strengths and limits for Mochi vs Obsidian, taken from each company's pricing page, docs and changelog. Updated October 2026.

MochiObsidian
Mochi logo

Mochi

Education AI Tools

Mochi is a spaced repetition flashcard app that writes cards in Markdown and works offline without an account. The free version includes unlimited cards and decks on Mac, Windows, Linux, iOS and Android. Pro costs $5 a month billed annually and adds sync, storage, published decks, API keys and much larger monthly allowances for AI, dictionary, translation, transcription and text to speech.

Obsidian logo

Obsidian

Productivity AI Tools

Obsidian is a note-taking app that stores everything as plain Markdown files on your own device, linked into a personal knowledge base. It suits researchers, writers and developers who want ownership of their notes. The app is free for personal and work use; Sync costs $4 a month and Publish $8 a month, billed annually.

Quick comparison

FeatureMochiObsidian
CategoryEducation AI ToolsProductivity AI Tools
Main useMarkdown flashcardsLocal Markdown notes
Pricing modelFree plan + paid tiersFree plan + paid tiers
Free plan Yes Yes
Entry paid plan$5/mo billed annually (Pro)$4/user/month (Sync)
PlatformsDesktop and mobileDesktop & mobile
Open source No No
Self-hosted No Yes
Public API Yes No
Profile updatedOctober 2026October 2026

Pricing plans

Every public plan, as listed on each company's pricing page.

Mochi

  • Free$0

    Unlimited offline cards and decks, no sync, 5,000 AI tokens a month.

  • Pro$5/mo billed annually

    Sync, 10 GB storage, published decks, API keys, 500,000 AI tokens a month.

Obsidian

  • Free$0

    Full app on every platform for personal and commercial use, no account, no feature limits.

  • Sync$4/user/month

    Billed annually. End-to-end encrypted sync across devices, version history and shared vaults.

  • Publish$8/site/month

    Billed annually. Publishes chosen notes as a website with custom themes, graph view and full-text search.

  • Catalyst$25 one-time

    Optional supporter license with early access to beta versions and community badges.

  • Commercial$50/user/year

    Optional organization license that supports development; 25 or more seats earns a listing on Obsidian's enterprise page.

Strengths and limits

Mochi

  • Free forever with no sign-up.
  • Markdown cards with templates.
  • Apps for desktop and mobile.
  • Pro is $5 a month on annual billing.
  • Sync requires Pro.
  • Small free AI and speech allowances.
  • Fewer shared decks than Anki.

Obsidian

  • Notes are plain Markdown files you own and can open in any editor.
  • Free for personal and work use with no feature limits.
  • Bases adds database-style tables and cards without leaving local files.
  • Thousands of plugins, including AI tools that run local models.
  • No native AI, so assistants depend on third-party plugins.
  • Live collaboration trails Notion and Google Docs.
  • Building a workable system takes time and plugin research.

Which should you choose?

Choose Mochi if

  • Learners who like writing in Markdown.
  • Language learners using templates.
  • Studying offline without an account.
  • Anki users wanting a cleaner app.

Look elsewhere if

  • Multi-device study without paying.
  • People wanting large shared deck libraries.
  • Classrooms needing teacher tools.

Choose Obsidian if

  • Researchers and writers building a linked personal knowledge base.
  • Developers who want notes as Markdown files that coding agents can edit.
  • People in regulated jobs who need notes stored only on their own devices.
  • Users who want to choose their own AI model through community plugins.

Look elsewhere if

  • Teams that need real-time co-editing and shared databases.
  • Users who want an AI assistant built in without setup.
  • Anyone who wants a structured system out of the box.

Mochi logo Mochi in brief

Mochi is a flashcard app for people who want spaced repetition without clutter. It sits between Anki's depth and the simplicity of a notes app: cards are written in Markdown, notes and flashcards share one workspace, and the review screen stays minimal. Mochi says you can use it free forever with no sign-up, which appeals to learners who want to try a system before handing over an email address. It runs on Mac, Windows, Linux, iOS and Android, and Mochi describes itself as local first, storing data on your device and syncing when you are online. Language learners, students and professionals keeping technical knowledge fresh are the main audience, along with Anki users who want a cleaner editor.

Cards in Mochi are Markdown documents, so they can hold headings, lists, code, LaTeX, images and audio. Mochi also works as a note-taking app: you write notes in the same workspace as your flashcards and link them both ways with references, so a vocabulary card can point to a grammar note and the note shows its backlinks. Templates speed up card creation, so you can design a card type once, such as a vocabulary card with word, meaning and example sentence, and reuse it. Pro adds dynamic fields. Tags, filters and saved views organize large collections, and reviews are scheduled with SM-2 or FSRS using two answer buttons, according to NextLang. Pro users can also publish decks for others.

Mochi's strengths are a clean Markdown editor, a free tier with unlimited offline cards, apps on every major platform, templates for structured cards and a low Pro price. Its weaknesses are that sync needs Pro, the free AI and speech allowances are small, the community deck library is far smaller than Anki's and it has fewer add-ons. Anki is the free, open source standard with deep customization. RemNote combines notes and flashcards with an AI tutor. Quizlet offers quick shared study sets. Knowt turns notes into AI flashcards. Choose Mochi if you want linked Markdown notes and spaced repetition in one clean app.

Read the full Mochi review

Obsidian logo Obsidian in brief

Obsidian is a desktop and mobile note-taking app made by Dynalist Inc., a small independent company founded by Shida Li and Erica Xu, and first released in 2020. It runs on Windows, macOS, Linux, iOS and Android. Notes live in a vault, which is a folder of plain Markdown files on your device, so they open in any text editor and outlast the app. Obsidian takes no venture capital and calls itself 100 percent user-supported. In February 2025 it made the commercial license optional, and the company says people at more than 10,000 organizations, including Amazon and Google, use it for work. Version 1.15 shipped in October 2026.

Writing happens in a Markdown editor with live preview. Typing double brackets links one note to another, and every note shows its backlinks, so ideas connect without a fixed folder hierarchy. The graph view draws those links as a network. Canvas gives an infinite board for arranging notes, images and web pages, and Bases, a core plugin added in 2025, turns notes with properties into sortable tables, cards or maps that work like a lightweight database. Daily notes, templates and tags cover journaling and task capture. The 1.15 mobile release added voice Quick Capture with live transcription on iOS 26, and PDF export on mobile.

Obsidian's flexibility is also its main drawback. A new vault is a blank editor, and building a useful system takes time and plugin choices. Real-time collaboration is limited compared with Notion, Microsoft Loop or Google Docs, and community plugins vary in quality and security. Notion suits teams that want shared databases and built-in AI. Logseq, which is open source, offers an outliner model with similar local files. Anytype offers local-first, encrypted notes with object-based structure. Pick Obsidian if you want notes that remain usable files in 20 years and are willing to add AI yourself; pick Notion for team wikis.

Read the full Obsidian review

Frequently asked questions

How do Mochi vs Obsidian compare on price?

Mochi has a free option, and its first paid plan (Pro) is listed at $5/mo billed annually. Obsidian has a free option, and its first paid plan (Sync) is listed at $4/user/month. Prices are from each company's pricing page and can change, so check before you buy.

Which has a free plan, Mochi vs Obsidian?

All of them. Mochi: Unlimited offline cards and decks, no sync, 5,000 AI tokens a month. Obsidian: Full app on every platform for personal and commercial use, no account, no feature limits.

Can I self-host or integrate Mochi vs Obsidian?

None of them is open source. Obsidian can run on your own servers. Mochi offers a public API.

Is Mochi free?

Yes. Mochi says you can use it free forever with no sign-up. The free version includes unlimited offline cards and decks, import and export and apps for Mac, Windows, Linux, iOS and Android. It does not sync between devices and includes small monthly allowances for AI and other services.

How much does Mochi Pro cost?

Mochi lists Pro at $5 a month billed annually. Pro adds sync across devices, 10 GB of storage, published decks, dynamic fields, API keys and email support. It also raises monthly allowances, such as 500,000 AI completion tokens, 1,000 dictionary lookups and 200,000 characters of text to speech.

Is Obsidian free?

Yes. Obsidian is free for personal, commercial, nonprofit, education and government use, with no account and no feature limits. Since February 2025 the Commercial license has been optional. You pay only for add-ons: Sync at $4 a user a month and Publish at $8 a site a month, both billed annually, or an optional $25 Catalyst license.

Does Obsidian have AI?

Obsidian has no built-in AI assistant. AI comes from community plugins such as Copilot for Obsidian, which runs Claude Code, Codex or OpenCode agents in your vault, and Smart Connections, which finds related notes using a local embedding model. Because notes are plain Markdown, coding agents can also edit the vault folder directly.

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