diff --git a/packages/auth/ios/RNFBAuth/RNFBAuthModule.m b/packages/auth/ios/RNFBAuth/RNFBAuthModule.m
index 75fee58b71..372bc78be0 100644
--- a/packages/auth/ios/RNFBAuth/RNFBAuthModule.m
+++ b/packages/auth/ios/RNFBAuth/RNFBAuthModule.m
@@ -54,6 +54,7 @@
 // Used for caching credentials between method calls.
 static __strong NSMutableDictionary<NSString *, FIRAuthCredential *> *credentials;
 static __strong NSMutableDictionary<NSString *, FIRMultiFactorResolver *> *cachedResolver;
+static __strong NSMutableDictionary<NSString *, FIRMultiFactorSession *> *cachedSessions;
 
 @implementation RNFBAuthModule
 #pragma mark -
@@ -73,6 +74,7 @@ - (id)init {
     idTokenHandlers = [[NSMutableDictionary alloc] init];
     credentials = [[NSMutableDictionary alloc] init];
     cachedResolver = [[NSMutableDictionary alloc] init];
+    cachedSessions = [[NSMutableDictionary alloc] init];
   });
   return self;
 }
@@ -99,6 +101,7 @@ - (void)invalidate {
 
   [credentials removeAllObjects];
   [cachedResolver removeAllObjects];
+  [cachedSessions removeAllObjects];
 }
 
 #pragma mark -
@@ -769,6 +772,26 @@ - (void)invalidate {
                                   }
                                 }];
 }
+RCT_EXPORT_METHOD(verifyPhoneNumberForMultiFactor
+                  : (FIRApp *)firebaseApp
+                  : (NSString *)phoneNumber
+                  : (NSString *)sessionId
+                  : (RCTPromiseResolveBlock)resolve
+                  : (RCTPromiseRejectBlock)reject) {
+  FIRMultiFactorSession *session = cachedSessions[sessionId];
+  [FIRPhoneAuthProvider.provider
+       verifyPhoneNumber:phoneNumber
+              UIDelegate:nil
+      multiFactorSession:session
+              completion:^(NSString *_Nullable verificationID, NSError *_Nullable error) {
+                if (error != nil) {
+                  [self promiseRejectAuthException:reject error:error];
+                  return;
+                }
+
+                resolve(verificationID);
+              }];
+}
 
 RCT_EXPORT_METHOD(resolveMultiFactorSignIn
                   : (FIRApp *)firebaseApp
@@ -797,6 +820,50 @@ - (void)invalidate {
                                               }];
 }
 
+RCT_EXPORT_METHOD(getSession
+                  : (FIRApp *)firebaseApp
+                  : (RCTPromiseResolveBlock)resolve
+                  : (RCTPromiseRejectBlock)reject) {
+  FIRUser *user = [FIRAuth authWithApp:firebaseApp].currentUser;
+  [[user multiFactor] getSessionWithCompletion:^(FIRMultiFactorSession *_Nullable session,
+                                                 NSError *_Nullable error) {
+    if (error != nil) {
+      [self promiseRejectAuthException:reject error:error];
+      return;
+    }
+
+    NSString *sessionId = [NSString stringWithFormat:@"%@", @([session hash])];
+    cachedSessions[sessionId] = session;
+    resolve(sessionId);
+  }];
+}
+
+RCT_EXPORT_METHOD(finalizeMultiFactorEnrollment
+                  : (FIRApp *)firebaseApp
+                  : (NSString *)verificationId
+                  : (NSString *)verificationCode
+                  : (NSString *_Nullable)displayName
+                  : (RCTPromiseResolveBlock)resolve
+                  : (RCTPromiseRejectBlock)reject) {
+  FIRPhoneAuthCredential *credential =
+      [FIRPhoneAuthProvider.provider credentialWithVerificationID:verificationId
+                                                 verificationCode:verificationCode];
+  FIRMultiFactorAssertion *assertion =
+      [FIRPhoneMultiFactorGenerator assertionWithCredential:credential];
+  FIRUser *user = [FIRAuth authWithApp:firebaseApp].currentUser;
+  [user.multiFactor enrollWithAssertion:assertion
+                            displayName:displayName
+                             completion:^(NSError *_Nullable error) {
+                               if (error != nil) {
+                                 [self promiseRejectAuthException:reject error:error];
+                                 return;
+                               }
+
+                               resolve(nil);
+                               return;
+                             }];
+}
+
 RCT_EXPORT_METHOD(verifyPhoneNumber
                   : (FIRApp *)firebaseApp
                   : (NSString *)phoneNumber
@@ -1080,25 +1147,11 @@ - (void)promiseNoUser:(RCTPromiseResolveBlock)resolve
 }
 
 - (NSDictionary *)multiFactorResolverToDict:(FIRMultiFactorResolver *)resolver {
-  NSMutableArray *hintsOutput = [NSMutableArray array];
-  for (FIRPhoneMultiFactorInfo *hint in resolver.hints) {
-    NSString *enrollmentDate =
-        [[[NSISO8601DateFormatter alloc] init] stringFromDate:hint.enrollmentDate];
-
-    [hintsOutput addObject:@{
-      @"uid" : hint.UID,
-      @"factorId" : [self getJSFactorId:(hint.factorID)],
-      @"displayName" : hint.displayName,
-      @"enrollmentDate" : enrollmentDate,
-      @"phoneNumber" : hint.phoneNumber
-    }];
-  }
-
   // Temporarily store the non-serializable session for later
   NSString *sessionHash = [NSString stringWithFormat:@"%@", @([resolver.session hash])];
 
   return @{
-    @"hints" : hintsOutput,
+    @"hints" : [self convertMultiFactorData:resolver.hints],
     @"session" : sessionHash,
   };
 }
@@ -1360,10 +1413,27 @@ - (NSDictionary *)firebaseUserToDict:(FIRUser *)user {
     @"refreshToken" : user.refreshToken,
     @"tenantId" : user.tenantID ? (id)user.tenantID : [NSNull null],
     keyUid : user.uid,
-    @"multiFactor" : user.multiFactor.enrolledFactors
+    @"multiFactor" :
+        @{@"enrolledFactors" : [self convertMultiFactorData:user.multiFactor.enrolledFactors]}
   };
 }
 
+- (NSArray<NSMutableDictionary *> *)convertMultiFactorData:(NSArray<FIRMultiFactorInfo *> *)hints {
+  NSMutableArray *enrolledFactors = [NSMutableArray array];
+
+  for (FIRPhoneMultiFactorInfo *hint in hints) {
+    NSString *enrollmentDate =
+        [[[NSISO8601DateFormatter alloc] init] stringFromDate:hint.enrollmentDate];
+    [enrolledFactors addObject:@{
+      @"uid" : hint.UID,
+      @"factorId" : [self getJSFactorId:(hint.factorID)],
+      @"displayName" : hint.displayName == nil ? [NSNull null] : hint.displayName,
+      @"enrollmentDate" : enrollmentDate,
+    }];
+  }
+  return enrolledFactors;
+}
+
 - (NSDictionary *)authCredentialToDict:(FIRAuthCredential *)authCredential {
   NSString *authCredentialHash = [NSString stringWithFormat:@"%@", @([authCredential hash])];