DUOL vs VIAV Comparison

Duolingo Inc is a technology company that develops a 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 four predominant sources of revenue; time-based subscriptions, in-app advertising placement by third parties, and the Duolingo English Test, and In-App Purchases.

Viavi Solutions Inc. is an international provider of network test, monitoring, and assurance solutions to communications service providers, enterprises, network equipment manufacturers, civil government, military and avionics customers. The company also offers high-performance thin-film optical coatings, providing light management solutions to anti-counterfeiting, 3D sensing, electronics, automotive, defense, and instrumentation markets. Its operating segments include Network Enablement, Service Enablement, and Optical Security and Performance Products. Geographically, it derives a majority of its revenue from the United States. Additionally, it manufactures and sells optical filters for 3D sensing products that allow facial recognition security authentication for mobile devices.