dark mode273 flutter51 swiftui45 ui kit41 modern ui38 ios 1737 react native32 clean design30 responsive layout27 flutter ui25 responsive23 responsive design23 swiftdata22 android20 light mode20 modern design18 push notifications18 firebase17 expo14 flutter app14 admob13 dashboard13 ios13 mobile app12 admin panel11 in-app purchase11 ai powered10 multi language10 admin dashboard9 analytics9