Based on this issue, RN 0.62+ generated bigger apk size. On this gist, I tried to documenting my experiment about this case.
- Create 3 apps differentiated by RN version used: 0.61.5 (latest on 0.61.+), 0.62.2 (latest on 0.62.+), and 0.63.4 (latest on 0.63.4)
npx react-native init RN061 --version 0.61.5
npx react-native init RN062 --version 0.62.2
npx react-native init RN063 --version 0.63.4
- Build release app on each apps