FLS vs DUOL Comparison

Flowserve Corp is a manufacturer and aftermarket service provider of comprehensive flow control systems. It develops precision-engineered flow control equipment to monitor movement and protect customers' materials and processes. It offers an extensive range of pumps, valves, seals, and services for several industries, including oil and gas, chemical, power generation, and water management. It has three business segments: FPD for custom engineered pumps, pre-configured industrial pumps, pump systems, mechanical seals, auxiliary systems and replacement parts and related services; and FCD for engineered-to-order and configured-to-order isolation values, control valves, valve automation products and related equipment and Eliminations and All Other.

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.