Solves is a well-made calculator app for your iPhone, iPad, Mac, and Apple Watch. It allows you to edit expressions without limitations and get instant results. It keeps your calculation history in sync on all devices and lets you to easily interact with it. All this for free and with no ads!

By purchasing Solves+ you also get:
• Unit Conversion: length, mass, data, currency, and many other
• History Tools: bookmarks, export, and clearing with filters
• Fraction Format
• Color Themes
• Advanced Settings

Only one payment is required to access Solves+ (not a subscription).