Proto.io offers Free Trial, but Justinmind does not.
Proto.io is designed for Large Enterprises, Medium Business and Small Business.
Justinmind is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Proto.io Starts at $24/Month when Billed Yearly whereas for Justinmind Starts at $19/User/Month when Billed Yearly.
Some top alternatives to Proto.io includes Figma, FigJam, UXPin, UX-App, Justinmind, UserX, UXArmy, UX Metrics, MockupTiger, Fluid UI and Framer X.
Some top alternatives to Justinmind includes Figma, FigJam, Adobe XD, UXPin, UX-App, UserX, UXArmy, Balsamiq, MockupTiger, Axure RP and Proto.io.