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.
Read moreWhy is react native app so big?
This is auto-generated by the build to avoid version conflicts , so don’t freak out (I did). This split reduced the apk size from around 7MB to 3.5MB for arm and 5MB for x86 respectively.9 Şub 2018
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