Added map file; in register.js, interpreters are going to Interpretes collection.

App.js

 import Calendario from './screens/main/Calendar';
 import Time from './screens/main/StateTime';
 import Search from './screens/main/Search';
+import Map from './screens/main/Map';
 
 
 if (firebase.apps.length === 0) {
             <Stack.Screen name="Calendar"  component={Calendario}/>
             <Stack.Screen name = "StateTime" component={Time}/>
             <Stack.Screen name = "Search" component={Search}/>
+            <Stack.Screen name = "Map" component={Map}/>
           </Stack.Navigator>
         </NavigationContainer>
       </Provider>

screens/auth/RegisterScreen.js

         firebase.auth().createUserWithEmailAndPassword(email, password)
             .then((result) => {
                 if (interpreter) {
-                    firebase.firestore().collection("Interpreters")
+                    firebase.firestore().collection("Interprete")
                         .doc(firebase.auth().currentUser.uid)
                         .set({
                             username,

screens/main/Map.js

+import * as React from 'react';
+import MapView, { Marker } from 'react-native-maps';
+import { StyleSheet, Text, View, Dimensions } from 'react-native';
+
+export default function Map() {
+  const [pin, setPin] = React.useState({
+    latitude: 18.4655,
+    longitude: -66.1057,
+  })
+  
+  return (
+    <View style={styles.container}>
+      <MapView style={styles.map}
+        initialRegion={{
+          latitude: 18.4655,
+          longitude: -66.1057,
+          latitudeDelta: 0.0922,
+          longitudeDelta: 0.0421,
+        }}
+        onLongPress={(e) => {
+          setPin({
+            latitude: e.nativeEvent.coordinate.latitude,
+            longitude: e.nativeEvent.coordinate.longitude
+          })}}
+        provider="google"
+      >
+        <Marker coordinate={pin} />
+      </MapView>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: '#fff',
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  map: {
+    width: Dimensions.get('window').width,
+    height: Dimensions.get('window').height,
+  },
+});