Caffeinated Notes vs Quirely Markdown+LaTeX Editor

Caffeinated Notes is a note-taking app built for speed. Capture thoughts as fast as paper, then find them faster than paper ever could with instant full-text search. SEARCH-FIRST DESIGN Start typing and results appear instantly. No folders to navigate, no tags to remember. Just type what you're looking for and it's there. Your notes are always one search away. FAST CAPTURE Tap the home screen widget to jump straight into a new note. No loading screens, no friction. Just you and your thoughts. CAPTURE FROM ANYWHERE Share text, links, or web pages from any app directly into Caffeinated Notes. Browsing an article you want to save? Share it. Found a quote you like? Share it. It becomes a note instantly. WORKS 100% OFFLINE Your notes live on your device first. No account required, no internet needed. Caffeinated Notes works anywhere: on a plane, in the subway, or off the grid. RICH TEXT EDITING - Bold, italic, headings, and lists - Checklists that sync with your To-Dos view - Code blocks with syntax highlighting - Tables, blockquotes, and dividers - Inline images and file attachments TO-DOS THAT LIVE IN YOUR NOTES Check off tasks right where you wrote them. All your open tasks appear in a unified To-Dos view. Add the To-Dos widget to your home screen to see and check off tasks at a glance. NOTEBOOKS Group related notes into notebooks, or let search do the organizing for you. SYNC ACROSS DEVICES (Optional subscription) Sign in to sync your notes across all your devices. Changes sync automatically in the background. Share notebooks with family, friends, or teammates. VERSION HISTORY Made a mistake? View and restore previous versions of any note. EXPORT & BACKUP Export individual notes as Markdown, HTML, or copy formatted text. Create full backups of all your notes anytime. PRIVACY FOCUSED Your notes stay on your device unless you choose to sync. We don't read your notes, we don't sell your data, and we never will. Terms of Use: https://caffeinatedsoftworks.com/terms/ Privacy Policy: https://caffeinatedsoftworks.com/privacy/

Quirely is two full editors in one native app: real Markdown and real LaTeX. Neither is a bolt-on. If you only ever write Markdown, you get a complete, beautiful Markdown app — nothing hidden behind TeX. If you live in LaTeX, you get a genuine editor that compiles your projects — not a Markdown app with math sprinkled in. A CALMER READER Open a file and just read. Quirely renders clean, typographic Markdown — never forcing a split screen or a cramped editor when all you want is the page. Switch to Code, Edit, or Split only when you choose. Quick Look previews .md and .tex straight from Finder. MARKDOWN, RENDERED RIGHT - Mermaid diagrams: flowcharts, sequence diagrams, and more — live, and styled to your theme. - LaTeX math: inline and block equations, typeset beautifully. - Code blocks with syntax highlighting for dozens of languages. - Tables, task lists, footnotes, callouts, full GitHub-flavored Markdown. EDIT LIKE A PRO - Four modes: View, Code, Edit (block editor), and Split. - Word-processor formatting: bold, italic, underline, strikethrough, highlight, links, super/subscript — with theme-aware colors. - Drag-and-drop block editing: reorder paragraphs, lists, tables, and diagrams by hand. - Visual Mermaid editing: drag nodes, add edges, recolor — no syntax required. - Spreadsheet functions in tables: =SUM(A1:A3), =AVERAGE, =IF and more, with a full function keypad on Mac. - Collaborate over bonjour. Share a workspace or document and each collaborator can edit with their own cursor and view. Entirely private; no external servers A REAL LATEX EDITOR - Open and compile .tex — single files or full projects with a root document, chapters, and BibTeX. - The same four modes: read the typeset PDF, edit raw source with themed syntax highlighting, or use structured Edit mode — rendered paragraphs, equations, and tables you double-click to edit. - Chapters open inline in the root document and save back to their own files. - Tabular grid editor with the same spreadsheet formulas as Markdown tables. - SyncTeX jump between source and PDF; rendered diffs between versions (latexdiff). - Export LaTeX to PDF, HTML, or clean Markdown — cite/ref/figure numbering intact. - LaTeX stays classic black-and-white by default; apply your theme with one toggle. FEYNMAN DIAGRAMS Build QED/QCD diagrams visually — vertices, propagators, gauge bosons, loops — or paste tikz-feynman. Quirely renders them natively and derives the amplitude iℳ from the Feynman rules; edit the equation and get the diagram back. Free on every tier. MAKE IT YOURS Ten hand-tuned themes recolor every token — headings, code, links, tables, diagrams. Duplicate any theme and edit every color, font, and size. Switch live. A REAL WORKSPACE - Open a folder with file navigation, backlinks, and tabs. - Semantic search and exact full-text search. - Version history with rendered diffs. - Mark positions to insert text across documents. ON-DEVICE AI (Pro) Draft, rewrite, and synthesize across your notes with Apple Intelligence — on-device, no API fees, no account. EXPORT & SHARE Polished HTML or paginated PDF with your theme, math, and diagrams intact. PRIVATE BY DESIGN Everything runs on your device. Your files stay plain Markdown and LaTeX you own — no account, no lock-in. ONE APP, EVERY DEVICE Universal for Mac, iPad, and iPhone. One-time purchases — never a subscription. Write in Markdown or LaTeX. Read either beautifully.