How do I reduce the size of an APK in Expo?

If you want to upload it in play store then it much better that you run expo build:android -t app-bundle and upload it. At play store bundle reduce their size approx. 30-40% of its actual size. If you want to run build directly to your android without uploading play store then you need to run expo build:android -t apk.

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Is React Native hard?

Learning mobile development is not a piece of cake and comparatively difficult than web development mostly. No matter if you choose to learn React Native (which is one of the easiest ) or any other platform/framework for mobile development.

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