Frequently Asked Questions
What can Calcy do?
Calcy is an all-in-one calculator: standard, scientific, and programmer modes, plus unit and currency converters, a date calculator, and full calculation history with memory keys.
Does the currency converter need internet?
It fetches the latest exchange rates when you open it, then caches them so it keeps working offline. The requests contain no personal data. All other features work fully offline.
Do you collect my data?
No. Calcy collects no personal information. Your history and memory stay on your device.
Which devices are supported?
iPhone running iOS 16.0 or later. The interface follows your system language (English and Chinese) and light/dark theme.
Contact Us
Questions, suggestions, or feedback? Email us and we'll get back to you as soon as we can: