Math, the way
you think.
A notepad calculator for iPhone. Type expressions in plain English and see live results beside every line.
Free. No ads. No subscription.
Coming Soon on the App Storebudget.pebbl
rent = 12001,200
groceries = 400400
utilities = 150150
rent + groceries + utilities1,750
salary = 5000 USD5,000 USD
salary in EUR4,612.50 EUR
32°F to °C0°C
Simple tools, done right.
Live Currency
Type "100 USD in EUR" and see the result with real exchange rates. Works offline with cached rates.
Unit Conversion
Length, weight, temperature, time, digital storage, and more. Just type naturally — "5 km in miles".
Variables & Sums
Assign values to names and reuse them. Use sum and average to aggregate sections.
Scientific Functions
sqrt, sin, cos, log, factorial, pi, e. Hex, binary, and octal conversions built in.
Multiple Documents
Organize calculations into named documents. Auto-saved locally, always there when you come back.
Private by Design
No account. No analytics. No tracking. Documents stay on your device. Free forever.