Difference between react-native-fcm and react-native-firebase dependency

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why we use these two different lib's if the moto of those is same..

not able to run react native by following this to build fcm notifications in react native app

please help me thanks in advance

if you interested in only FCM then you can use react-native-fcm but if you interested in other firebase serve like firestore , analytics , storage then you should use react-native-firebase

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