Image ( 84.86 KB ) 
Duolingo app schreenshot
Vodafone UK Media Relations
Telephone: +44 (0) 1635 693 693
Email: ukmediarelations@vodafone.com
Twitter: @VodafoneUKNews
Website: https://vodafone.co.uk/newscentre/
Vodafone Limited
Registered Office: Vodafone House, The Connection, Newbury, Berkshire RG14 2FN
Registered in England No: 1471587
