A calculator that works
like a notepad.
Type math, unit conversions, time zones, and notes — line by line. Every line just computes. Your work stays on your device.
📱 Coming soon to the App Store
🤖 Coming soon to Google Play
// groceries
12.50 + 4.99 + 8.25 → 25.74
20% off 25.74 → 20.59
2 cups to milliliters → 473.176473
1 gallon to pints → 8
9am PST to UTC → 5:00 PM UTC
sqrt(2) → 1.4142135623731
Smart calculator
Plain math plus a full scientific function set — sqrt, log, trig, factorial, and constants like pi and e.
Conversions built in
Length, volume, temperature, weight, data, speed, area, CSS units — exact ratios, clean decimals.
Time zones
“9am PST to UTC”, “time in Tokyo” — written the way you’d say it.
Notepad model
Variables, running totals, and prev carry across lines. Keep many “thumbs” and reorder them.
Private & offline
No account, no tracking, no network. Everything stays on your device.
Share & export
Send a thumb as text, or back everything up as JSON, Markdown, or CSV.