The verdict: can you vibe code Bear?
Build a subset for local use or keep paying, because matching Bear's native Mac performance and custom parser requires deep systems programming.
Bear's value relies on its native Swift/C++ architecture, custom text engine (Panda), and deep Apple ecosystem tie-ins. Replicating this via an AI coding agent on macOS means building a custom text editor view in AppKit or SwiftUI, wrapping a SQLite database, and implementing custom Markdown AST rendering. An AI assistant will struggle with complex text selection states, undo/redo stacks, and smooth inline rendering performance.
Estimated effort: 6+ weeks of intensive development and debugging
What you can't replicate
- The exact zero-lag tactile feel of the custom C++/Swift text rendering engine
- Seamless background iCloud synchronization via CloudKit without custom server infrastructure
- The decade of artisanal UI/UX polish and Apple Design Award-winning aesthetic
Founded
2016
Raised
—
Team
3-10
Cheapest paid tier
$2.99/mo
What Bear does
A flexible, highly polished Markdown-based note-taking and personal knowledge management application for Apple platforms with flexible tags, wiki links, and document encryption.
Core features
- Zero-lag inline Markdown editor with syntax rendering
- Nested tag hierarchy (#work/projects/alpha#) and sidebar navigation
- Wiki-style internal note linking and automatic backlinks
- Local SQLite persistence with note-level encryption
- Multi-format document export (HTML, PDF, DOCX, EPUB, Markdown)
- OCR search inside attachments, photos, and PDFs
- Theme customization engine with custom color schemes and typography
The business
Pricing
- FreeFree
- Bear Pro Monthly$2.99/mo
- Bear Pro Yearly$29.99/yr
Funding
Unknown / bootstrapped
Pay vs build, cumulative
No break-even inside 24 months at these numbers.
The hard parts of vibe coding Bear
- Writing a high-performance inline Markdown parsing engine without web wrapper overhead
- Implementing real-time wiki-link autocompletion and dynamic backlink calculation
- Managing robust local SQLite schema with note-level zero-knowledge encryption
- Building seamless cross-device synchronization without a custom backend server
How to vibecode Bear
Prerequisites
macOS & XcodeFree
Required to compile and run native Swift and SwiftUI macOS applications.
Apple Developer Account$99/yr
Required if you want to test CloudKit synchronization and distribute the app locally or via TestFlight.
Claude Code$20/mo
Agentic coding tool for multi-file Swift project scaffolding, debugging, and iteration.
AI coding tools
Recommended stack
| Frontend | Swift, SwiftUI, AppKit |
|---|---|
| Backend | Local execution (Swift actors) |
| Database | SQLite (GRDB.swift) |
| Auth | Apple ID / Local Device Auth |
| Payments | App Store In-App Purchases (via RevenueCat) |
| Other | CloudKit for sync, Vision Framework for OCR |
Hosting & infrastructure
| CloudKit | Handles zero-server note synchronization across user Apple devices securely through iCloud. | $0/mo |
Build guide
01Scaffold Native macOS App & Database Layer
Initialize a new SwiftUI macOS application using Swift Package Manager and GRDB.swift for SQLite persistence. Establish the database schema for notes, tags, and relations.
Create a new SwiftUI macOS application project structure using Swift Package Manager. Integrate GRDB.swift as a dependency. Build a SQLite database manager that creates a `notes` table (id, title, body, is_encrypted, is_archived, is_trashed, created_at, modified_at) and a `tags` table with a many-to-many relationship. Ensure all database operations run asynchronously using Swift actors. Provide clean repository protocols for CRUD operations on notes and tags.02Build Three-Column Navigation Sidebar & Note List
Implement a macOS-style three-column navigation layout containing a sidebar for system views and nested tags, a filtered note list view, and the main editor pane.
Build a responsive three-column macOS interface using `NavigationSplitView`. The sidebar must display system views (Notes, Untagged, Today, Archive, Trash) and a dynamically computed tree of nested tags parsed from note content (e.g., `#work/projects/alpha#`). The middle column displays the filtered list of notes sorted by modification date, supporting search queries and tag selection. The detail column displays the placeholder editor view.03Develop Inline Markdown Editor & AST Parser
Create a high-performance text editing view capable of parsing Markdown inline, highlighting headers, bold text, lists, and code blocks without a web view.
Implement a custom SwiftUI text editor wrapper around `NSTextView` or SwiftUI TextEditor that performs lightweight real-time Markdown parsing. Highlight headers (`#`), bold text (`**`), lists (`-`), and code blocks dynamically. Implement support for wiki-style internal links (`[[Note Title]]`) and automatic backlink detection by scanning all notes for references to the current note's title.04Implement Tag Parsing & Auto-Complete Engine
Build a regex-based tag extractor that automatically indexes single and multi-word tags (#tag# or #multi word tag#) and provides auto-completion during typing.
Write a Swift utility service that extracts single-word tags (`#work`) and multi-word tags wrapped in double hashes (`#blog post ideas#`) from note bodies. Maintain an up-to-date cache of all active tags in the SQLite database. Implement an auto-completion overlay popover that appears when the user types `#` inside the editor, suggesting existing tags matching the current query.05Add Note Encryption & App Locking
Implement note-level encryption using CryptoKit and biometric authentication (Touch ID) to lock individual notes and the application.
Integrate Apple's CryptoKit and LocalAuthentication frameworks into the macOS app. Implement a service to encrypt and decrypt individual note bodies using AES-GCM with a user-provided passphrase or device passcode. Add a lock screen overlay when the application is backgrounded or when attempting to view encrypted notes, requiring Touch ID or password verification.06Incorporate CloudKit Synchronization
Configure CloudKit container synchronization to sync SQLite records and attachments across multiple Apple devices signed into the same iCloud account.
Configure a CloudKit container integration using Swift's `CKContainer` and `CKRecord`. Implement a sync engine that observes local SQLite changes and pushes record modifications to iCloud, while listening to remote push notifications to pull updates and resolve sync conflicts cleanly using a last-write-wins strategy based on modification timestamps.07Export Engine & Theme Customization
Build an export pipeline for Markdown, PDF, HTML, and DOCX, alongside a dynamic theme switcher supporting dark and light color palettes.
Build an export manager that converts notes into Markdown, HTML, RTF, and PDF formats using CoreText and PDFKit renderers. Create a theme engine supporting custom color palettes and font styling configurations (e.g., Solarized, Dracula, Dark Graphite) that dynamically update UI colors across the sidebar, note list, and editor.
Cost vs paying for Bear
What will you build it with?
Starting total with Claude Code~$99 one-time
Starting costs (one-time)
- Apple Developer Account (optional for personal distribution)$99/yr
- Claude Pro / AI coding credits$20
Total~$119 one-time
Ongoing costs (monthly)
- iCloud / CloudKit storage (standard user storage)$0/mo
Total$0/mo
Paying for Bear
$2.99/mo
Your time to build
60-80 hours
AI tool credits
$20
Break-even
40 months of subscription fees (or priceless for learning native macOS development)
Vibe code Bear: FAQ
- Can you vibe code Bear yourself?
- Serious undertaking — 45/100 vibecodeable. Build a subset for local use or keep paying, because matching Bear's native Mac performance and custom parser requires deep systems programming.
- How long does it take to vibe code Bear?
- 6+ weeks of intensive development and debugging — roughly 60-80 hours of hands-on time with an AI coding agent.
- How do you build your own Bear?
- Scoped to personal use: Swift, SwiftUI, AppKit on the front, Local execution (Swift actors) behind it, SQLite (GRDB.swift) for data. Follow the 7-step build guide on this page — each step has a paste-ready prompt for an AI coding agent.
- How do you code your own Bear without being an expert?
- Use an AI coding tool (Claude Code or Cursor) and work in small steps: scaffold, data model, core screens, then deploy. Realistic effort: 6+ weeks of intensive development and debugging. The prompts on this page are written so the AI does the heavy lifting.
- How much does it cost to vibe code Bear instead of paying?
- About ~$119 one-time to start and $0/mo to run, versus $2.99/mo for Bear. Break-even: 40 months of subscription fees (or priceless for learning native macOS development).
- What stack should you use to vibe code Bear?
- Swift, SwiftUI, AppKit; Local execution (Swift actors); SQLite (GRDB.swift); plus CloudKit for sync, Vision Framework for OCR.