Available on the App Store
calculator DUO
A fast scientific calculator with one-hand layouts, reusable results, and private on-device history.
Made by Enbilex
Small apps, carefully finished.
Focused iPhone and iPad utilities with clear controls, local-first data, accessibility support, and no account required.
Available on the App Store
Sudoku Duo
Classic and 30° Diamond boards, step-by-step hints, technique practice, daily puzzles, and achievements.
App details & support
Tip Calc $
Exact tips, fair bill splitting, on-device receipt scanning, and local history.
Coming soon
Unit Converter
Twelve conversion categories, custom units, compound feet and inches, and quick pairings that stay yours.
Built for iPhone and iPad
Preferences stay on your device
Accessible, focused interfaces