Update the application display name

Android

Open: android/app/src/main/AndroidManifest.xml

Update android:label as you want.

iOS

Open: ios/Runner/Info.plist

<key>CFBundleName</key>
<string>Golo_Lara</string>

Replace "Golo_lara" by your app name.

You can update your app bundle identifier in this Info.plist also.