DUOL vs VIV Comparison

Duolingo Inc is a technology company that develops mobile learning platform to learn languages and is the top-grossing app in the Education category on both Google Play and the Apple App Store. Its products are powered by sophisticated data analytics and artificial intelligence and delivered with class art, animation, and design to make it easier for learners to stay motivated master new material, and achieve their learning goals. Its solutions include The Duolingo Language Learning App, Super Duolingo, Duolingo English Test: AI-Driven Language Assessment, Duolingo For Schools, Duolingo ABC, and Duolingo Math. It has three predominant sources of revenue; time-based subscriptions, in-app advertising placement by third parties, and the Duolingo English Test.

Telefonica Brasil, known as Vivo, is the largest wireless carrier in Brazil with 100 million customers, which is equal to about 39% market share. The firm is strongest in the postpaid business, where it has 65 million customers, or about 41% share of this market. Wireless services and equipment contribute about 70% of total revenue. Vivo is the incumbent fixed-line telephone operator in Sao Paulo state and, following the acquisition of GVT, the owner of an extensive fiber network across the country. The firm provides internet access to 7 million households on this network. The firm also sells pay-tv and phone services to its fixed-line customers. Finally, corporate data and IT services, including cloud computing support, contribute about 8% of total revenue.