Lume

Notes that appear with a mouse shake

WindowsProductivityWriting

▲ 0 votes1 commentsLaunched Oct 1, 2026

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Lume is a native Windows notes app (WinUI 3, no Electron) that stays hidden until you need it. Shake your mouse or press a shortcut, write, and press Esc — it’s gone. Beyond quick notes: a scratchpad that does maths as you type, freehand drawing on notes, and local-first storage with optional OneDrive sync. Free for up to 20 notes. Reading, search and export always stay free.

AI Analysis

📝 Summary

Lume is a native Windows notes app (WinUI 3) that stays hidden until activated via mouse shake or shortcut. Users write notes or use its scratchpad for real-time maths, add freehand drawings, then press Esc to dismiss. It uses local-first storage with optional OneDrive sync. Solves pain points of cluttered screens, slow app launches for quick thoughts, and Electron bloat. USP: instant, non-intrusive access. Free up to 20 notes; reading, search and export always free. Value proposition is seamless, distraction-free productivity for fleeting ideas.

📈 Market Timing

In 2025-2026, trends favor privacy-oriented local-first tools and lightweight native apps amid fatigue with heavy Electron-based software. User demand for frictionless, quick-capture productivity solutions is rising in fast-paced work environments. Economic focus on efficient personal tools supports this. Excellent Timing.

✅ Feasibility

High - Uses mature WinUI 3 for native Windows development, keeping technical difficulty moderate. Low ongoing operational costs due to local-first design; optional sync adds manageable cloud costs. Minimal supply chain or compliance risks. Strong scalability for desktop app with freemium model.

🎯 Target Market

Primary segments: Windows PC users aged 18-45, including students, writers, developers, and office professionals in productivity-focused roles. Geographic focus: North America and Europe with global potential. Core pain points: need for instant, non-disruptive note capture without persistent UI. Note-taking software TAM is large (multi-billion USD); SAM for Windows-specific quick notes is substantial with moderate-to-high willingness to pay for expanded limits.

⚔️ Competition

Medium. Direct competitors: 1. Microsoft Sticky Notes (microsoft.com/windows/sticky-notes), 2. OneNote (onenote.com), 3. Notion (notion.so), 4. Obsidian (obsidian.md), 5. Bear (bear.app). Advantages: unique mouse-shake activation, native performance (no Electron), integrated math/drawing, minimalist UX. Disadvantages: Windows-only, limited free tier (20 notes), newer entrant vs established brands with broader platforms and features.

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