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How I detect which framework an Android app was built with (Flutter, React Native, Unity...)

by Hamd dev.to

1 min read

I kept wondering which apps on my phone were Flutter, React Native or plain Kotlin. Play Store doesn't tell you, so I built StackLens, an on-device Android app inspector. Here's how the detection works. Every framework leaves fingerprints in the APK An APK is a zip file. Cross-platform frameworks have to ship their runtime inside it, and those files have very recognisable names: Framework What to…

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