InkCalc

InkCalc is a notepad calculator for Mac, iPhone and iPad. Write math the way you'd say it (1000 - 20%, 5 km in miles, 100 USD in JPY, today + 90 days) and the result appears next to each line. Name values, reuse them with sum above or ans, and everything recalculates as you edit. Built-in AI turns plain words into formulas, fixes broken lines and summarizes a note, on-device with Apple Intelligence or with your own Claude or OpenAI key. Notes sync across devices via iCloud.