Calcy is a beautifully simple calculator that packs everything you need — from quick everyday sums to scientific and programmer-grade math.
No account. No ads. No data collection.
Features
Standard
Fast, tap-and-go arithmetic with grouping and adjustable decimals.
Scientific
Trig, logs, powers, roots and factorials with proper order of operations.
Programmer
HEX / DEC / OCT / BIN at a glance, with bitwise operators.
Converters
Length, weight, temperature and more, plus live currency rates.
Date Calculator
Exact differences between dates, and add/subtract days.
History & Memory
Revisit, copy and reuse every calculation.
Privacy First
- No personal data is collected, stored, or shared.
- Calculations, history and memory stay on your device.
- The currency converter fetches public exchange rates only — no personal info.
- No analytics, ads, or tracking.