Cumulus - Skill Tracker

Build skills one block at a time. Track practice sessions, organize your skill tree, and watch your progress grow—all private on your device. No account required.

Build your skills one block at a time with Cumulus.

Cumulus is a simple, beautiful time tracker designed to help you build and measure progress on any skill. Whether you're learning guitar, studying a new language, coding, or practicing meditation—Cumulus helps you stay consistent and see your growth over time.

Key Features:

• Simple Time Tracking — Tap to start, tap to stop. Your sessions are automatically saved.

• Organize Your Skills — Create categories and nest skills like building blocks. Track "Music" with sub-skills like "Guitar" and "Piano."

• Visual Progress — See colorful charts showing how you spend your time across all your skills.

• 100% Private — All data stays on your device. No accounts, no cloud, no tracking.

• Clean Design — A focused, distraction-free interface that gets out of your way.

Start stacking up your skills today with Cumulus.