Independent apps built with care

Focused tools for learning, productivity, and everyday progress.

Apps

Build a steady π rhythm with daily practice, memory workbench, challenges, and an infinite π table. Try our free tool to find your birthday in π.

Open Pi Sequence

Shared expenses for two. Features companion ledgers, Back Tap zero-touch screenshot tallying, on-device Vision OCR, and couple wishlist.

Open Twally

New focused tools will appear here as they are ready.

Simple, well-crafted tools that do one thing really well.

Your data stays on your device whenever the product can work that way.

Apps are designed to earn a place in your daily routine.