How Duolingo optimizes Android performance
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Nobody likes waiting, especially when opening an app. We noticed a clear trend: the faster our app started, the more users stuck around.
AI tools offer a solution to difficult-to-automate regression testing woes.
We made our engineers happier by cutting build times down from 50 minutes to 16.
A single backend response can do a lot more than you think.
“Dogfooding” is one of the most important tools we have for improving the app.
Showcases Duolingo’s approach to building an excellent Android app, focusing on performance and user engagement.