The 2014 Duolingo app icon, credited to Gregory Hartman, as printed in The iOS App Icon Book on page 79.

The iOS App Icon Book · Printed page 79

Duolingo

This is the Duolingo app icon from 2014, credited to Gregory Hartman, as it appears in the printed The iOS App Icon Book.

Credit
Gregory Hartman ↗
Book
iOS edition
Artwork year
2014
Printed page
79
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More versions of Duolingo

The 2012 Duolingo app icon, credited to Duolingo, as printed in The iOS App Icon Book on page 79.Duolingo2012The 2019 Duolingo app icon, credited to Duolingo, as printed in The iOS App Icon Book on page 79.Duolingo2019