diff --git a/Adjust.podspec b/Adjust.podspec
index fc7a0578e..a8a3f2364 100644
--- a/Adjust.podspec
+++ b/Adjust.podspec
@@ -1,11 +1,11 @@
 Pod::Spec.new do |s|
   s.name           = "Adjust"
-  s.version        = "4.25.1"
+  s.version        = "4.25.2"
   s.summary        = "This is the iOS SDK of adjust. You can read more about it at http://adjust.com."
   s.homepage       = "https://github.com/adjust/ios_sdk"
   s.license        = { :type => 'MIT', :file => 'MIT-LICENSE' }
   s.author         = { "Christian Wellenbrock" => "welle@adjust.com" }
-  s.source         = { :git => "https://github.com/adjust/ios_sdk.git", :tag => "v4.25.1" }
+  s.source         = { :git => "https://github.com/adjust/ios_sdk.git", :tag => "v4.25.2" }
   s.ios.deployment_target = '6.0'
   s.tvos.deployment_target = '9.0'
   s.framework      = 'SystemConfiguration'
diff --git a/Adjust/ADJActivityHandler.h b/Adjust/ADJActivityHandler.h
index 3670ccfe3..4ff3cdd9a 100644
--- a/Adjust/ADJActivityHandler.h
+++ b/Adjust/ADJActivityHandler.h
@@ -155,3 +155,4 @@
 @end
 
 extern NSString * const ADJiAdPackageKey;
+extern NSString * const ADJAdServicesPackageKey;
diff --git a/Adjust/ADJActivityHandler.m b/Adjust/ADJActivityHandler.m
index 5a9d77b44..922e8e6ce 100644
--- a/Adjust/ADJActivityHandler.m
+++ b/Adjust/ADJActivityHandler.m
@@ -423,12 +423,12 @@ - (void)setAdServicesAttributionToken:(NSString *)token
                 [self checkForAdServicesAttributionI:self];
             });
         } else {
-            [self sendAdServicesInfoPackage:self
+            [self sendAdServicesClickPackage:self
                                       token:nil
                             errorCodeNumber:[NSNumber numberWithInteger:error.code]];
         }
     } else {
-        [self sendAdServicesInfoPackage:self
+        [self sendAdServicesClickPackage:self
                                   token:token
                         errorCodeNumber:nil];
     }
@@ -582,9 +582,9 @@ - (void)sendIad3ClickPackage:(ADJActivityHandler *)selfI
      [selfI.sdkClickHandler sendSdkClick:clickPackage];
 }
 
-- (void)sendAdServicesInfoPackage:(ADJActivityHandler *)selfI
-                            token:(NSString *)token
-                  errorCodeNumber:(NSNumber *)errorCodeNumber
+- (void)sendAdServicesClickPackage:(ADJActivityHandler *)selfI
+                             token:(NSString *)token
+                   errorCodeNumber:(NSNumber *)errorCodeNumber
  {
      if (![selfI isEnabledI:selfI]) {
          return;
@@ -603,7 +603,7 @@ - (void)sendAdServicesInfoPackage:(ADJActivityHandler *)selfI
              selfI.activityState.lastInterval = lastInterval;
          }];
      }
-     ADJPackageBuilder *infoBuilder = [[ADJPackageBuilder alloc]
+     ADJPackageBuilder *clickBuilder = [[ADJPackageBuilder alloc]
                                        initWithDeviceInfo:selfI.deviceInfo
                                        activityState:selfI.activityState
                                        config:selfI.adjustConfig
@@ -611,11 +611,11 @@ - (void)sendAdServicesInfoPackage:(ADJActivityHandler *)selfI
                                        trackingStatusManager:self.trackingStatusManager
                                        createdAt:now];
 
-     ADJActivityPackage *infoPackage =
-        [infoBuilder buildInfoPackage:ADJAdServicesPackageKey
-                                 token:token
-                       errorCodeNumber:errorCodeNumber];
-     [selfI.packageHandler addPackage:infoPackage];
+     ADJActivityPackage *clickPackage =
+        [clickBuilder buildClickPackage:ADJAdServicesPackageKey
+                                  token:token
+                        errorCodeNumber:errorCodeNumber];
+     [selfI.sdkClickHandler sendSdkClick:clickPackage];
 }
 
 - (void)saveAttributionDetailsI:(ADJActivityHandler *)selfI
@@ -793,8 +793,7 @@ - (void)trackAttStatusUpdateI:(ADJActivityHandler *)selfI {
                                                 trackingStatusManager:self.trackingStatusManager
                                                 createdAt:now];
 
-    ADJActivityPackage *infoPackage = [infoBuilder buildInfoPackage:@"att"
-                                       token:nil errorCodeNumber:nil];
+    ADJActivityPackage *infoPackage = [infoBuilder buildInfoPackage:@"att"];
     [selfI.packageHandler addPackage:infoPackage];
     
     if (selfI.adjustConfig.eventBufferingEnabled) {
@@ -1721,10 +1720,21 @@ - (void)checkForiAdI:(ADJActivityHandler *)selfI {
     [[UIDevice currentDevice] adjCheckForiAd:selfI queue:selfI.internalQueue];
 }
 
+- (BOOL)shouldFetchAdServicesI:(ADJActivityHandler *)selfI {
+    if (selfI.adjustConfig.allowAdServicesInfoReading == NO) {
+        return NO;
+    }
+    
+    // Fetch if no attribution OR not sent to backend yet
+    return (selfI.attribution == nil || ![ADJUserDefaults getAdServicesTracked]);
+}
+
 - (void)checkForAdServicesAttributionI:(ADJActivityHandler *)selfI {
     if (@available(iOS 14.3, tvOS 14.3, *)) {
-        if (selfI.adjustConfig.allowAdServicesInfoReading == YES && selfI.attribution == nil) {
-            [[UIDevice currentDevice] adjCheckForAdServicesAttribution:selfI];
+        if ([selfI shouldFetchAdServicesI:selfI]) {
+            NSError *error = nil;
+            NSString *token = [[UIDevice currentDevice] adjFetchAdServicesAttribution:&error];
+            [selfI setAdServicesAttributionToken:token error:error];
         }
     }
 }
@@ -1948,8 +1958,7 @@ - (void)setDeviceTokenI:(ADJActivityHandler *)selfI
                                                 trackingStatusManager:self.trackingStatusManager
                                                 createdAt:now];
 
-    ADJActivityPackage *infoPackage = [infoBuilder buildInfoPackage:@"push"
-                                       token:nil errorCodeNumber:nil];
+    ADJActivityPackage *infoPackage = [infoBuilder buildInfoPackage:@"push"];
 
     [selfI.packageHandler addPackage:infoPackage];
 
@@ -1998,8 +2007,7 @@ - (void)setPushTokenI:(ADJActivityHandler *)selfI
                                                 trackingStatusManager:self.trackingStatusManager
                                                 createdAt:now];
 
-    ADJActivityPackage *infoPackage = [infoBuilder buildInfoPackage:@"push"
-                                       token:nil errorCodeNumber:nil];
+    ADJActivityPackage *infoPackage = [infoBuilder buildInfoPackage:@"push"];
     [selfI.packageHandler addPackage:infoPackage];
 
     // if push token was cached, remove it
diff --git a/Adjust/ADJAdditions/UIDevice+ADJAdditions.h b/Adjust/ADJAdditions/UIDevice+ADJAdditions.h
index 2b3c6f70f..8e340f6b0 100644
--- a/Adjust/ADJAdditions/UIDevice+ADJAdditions.h
+++ b/Adjust/ADJAdditions/UIDevice+ADJAdditions.h
@@ -23,7 +23,7 @@
 - (NSString *)adjVendorId;
 - (NSString *)adjDeviceId:(ADJDeviceInfo *)deviceInfo;
 - (void)adjCheckForiAd:(ADJActivityHandler *)activityHandler queue:(dispatch_queue_t)queue;
-- (void)adjCheckForAdServicesAttribution:(ADJActivityHandler *)activityHandler;
+- (NSString *)adjFetchAdServicesAttribution:(NSError **)errorPtr;
 
 - (void)requestTrackingAuthorizationWithCompletionHandler:(void (^)(NSUInteger status))completion;
 
diff --git a/Adjust/ADJAdditions/UIDevice+ADJAdditions.m b/Adjust/ADJAdditions/UIDevice+ADJAdditions.m
index e7bf3a103..6fba150cf 100644
--- a/Adjust/ADJAdditions/UIDevice+ADJAdditions.m
+++ b/Adjust/ADJAdditions/UIDevice+ADJAdditions.m
@@ -362,27 +362,30 @@ - (void)adjCheckForiAd:(ADJActivityHandler *)activityHandler queue:(dispatch_que
 #endif
 }
 
-- (void)adjCheckForAdServicesAttribution:(ADJActivityHandler *)activityHandler {
+- (NSString *)adjFetchAdServicesAttribution:(NSError **)errorPtr {
     id<ADJLogger> logger = [ADJAdjustFactory logger];
     
     // [AAAttribution attributionTokenWithError:...]
     Class attributionClass = NSClassFromString(@"AAAttribution");
     if (attributionClass == nil) {
         [logger warn:@"AdServices framework not found in user's app (AAAttribution not found)"];
-        [activityHandler setAdServicesAttributionToken:nil
-                                                 error:[NSError errorWithDomain:@"com.adjust.sdk.adServices"
-                                                                           code:100
-                                                                       userInfo:@{@"Error reason": @"AdServices framework not found"}]];
-        return;
+        
+        if (errorPtr) {
+            *errorPtr = [NSError errorWithDomain:@"com.adjust.sdk.adServices"
+                                            code:100
+                                        userInfo:@{@"Error reason": @"AdServices framework not found"}];
+        }
+        return nil;
     }
     
     SEL attributionTokenSelector = NSSelectorFromString(@"attributionTokenWithError:");
     if (![attributionClass respondsToSelector:attributionTokenSelector]) {
-        [activityHandler setAdServicesAttributionToken:nil
-                                                 error:[NSError errorWithDomain:@"com.adjust.sdk.adServices"
-                                                                           code:100
-                                                                       userInfo:@{@"Error reason": @"AdServices framework not found"}]];
-        return;
+        if (errorPtr) {
+            *errorPtr = [NSError errorWithDomain:@"com.adjust.sdk.adServices"
+                                            code:100
+                                        userInfo:@{@"Error reason": @"AdServices framework not found"}];
+        }
+        return nil;
     }
     
     NSMethodSignature *attributionTokenMethodSignature = [attributionClass methodSignatureForSelector:attributionTokenSelector];
@@ -397,15 +400,17 @@ - (void)adjCheckForAdServicesAttribution:(ADJActivityHandler *)activityHandler {
     
     if (error) {
         [logger error:@"Error while retrieving AdServices attribution token: %@", error];
-        [activityHandler setAdServicesAttributionToken:nil error:error];
-        return;
+        if (errorPtr) {
+            *errorPtr = error;
+        }
+        return nil;
     }
     
     NSString * __unsafe_unretained tmpToken = nil;
     [tokenInvocation getReturnValue:&tmpToken];
     
     NSString *token = tmpToken;
-    [activityHandler setAdServicesAttributionToken:token error:nil];
+    return token;
 }
 
 - (BOOL)setiAdWithDetails:(ADJActivityHandler *)activityHandler
diff --git a/Adjust/ADJPackageBuilder.h b/Adjust/ADJPackageBuilder.h
index 18bf44555..d64772fd1 100644
--- a/Adjust/ADJPackageBuilder.h
+++ b/Adjust/ADJPackageBuilder.h
@@ -42,14 +42,16 @@
 - (ADJActivityPackage *)buildEventPackage:(ADJEvent *)event
                                 isInDelay:(BOOL)isInDelay;
 
-- (ADJActivityPackage *)buildInfoPackage:(NSString *)infoSource
-                                   token:(NSString *)token
-                         errorCodeNumber:(NSNumber *)errorCodeNumber;
+- (ADJActivityPackage *)buildInfoPackage:(NSString *)infoSource;
 
 - (ADJActivityPackage *)buildAdRevenuePackage:(NSString *)source payload:(NSData *)payload;
 
 - (ADJActivityPackage *)buildClickPackage:(NSString *)clickSource;
 
+- (ADJActivityPackage *)buildClickPackage:(NSString *)clickSource
+                                    token:(NSString *)token
+                          errorCodeNumber:(NSNumber *)errorCodeNumber;
+
 - (ADJActivityPackage *)buildAttributionPackage:(NSString *)initiatedBy;
 
 - (ADJActivityPackage *)buildGdprPackage;
@@ -75,4 +77,12 @@
             setInt:(int)value
             forKey:(NSString *)key;
 
++ (void)parameters:(NSMutableDictionary *)parameters
+       setDate1970:(double)value
+            forKey:(NSString *)key;
+
++ (BOOL)isAdServicesPackage:(ADJActivityPackage *)activityPackage;
+
 @end
+// TODO change to ADJ...
+extern NSString * const ADJAttributionTokenParameter;
diff --git a/Adjust/ADJPackageBuilder.m b/Adjust/ADJPackageBuilder.m
index 6feaa3cfd..5a71e98e5 100644
--- a/Adjust/ADJPackageBuilder.m
+++ b/Adjust/ADJPackageBuilder.m
@@ -15,6 +15,8 @@
 #import "UIDevice+ADJAdditions.h"
 #import "ADJUserDefaults.h"
 
+NSString * const ADJAttributionTokenParameter = @"attribution_token";
+
 @interface ADJPackageBuilder()
 
 @property (nonatomic, assign) double createdAt;
@@ -92,22 +94,9 @@ - (ADJActivityPackage *)buildEventPackage:(ADJEvent *)event
 }
 
 - (ADJActivityPackage *)buildInfoPackage:(NSString *)infoSource
-                                   token:(NSString *)token
-                         errorCodeNumber:(NSNumber *)errorCodeNumber
 {
     NSMutableDictionary *parameters = [self getInfoParameters:infoSource];
 
-    if (token != nil) {
-        [ADJPackageBuilder parameters:parameters
-                            setString:token
-                               forKey:@"attribution_token"];
-    }
-    if (errorCodeNumber != nil) {
-        [ADJPackageBuilder parameters:parameters
-                               setInt:errorCodeNumber.intValue
-                               forKey:@"error_code"];
-    }
-
     ADJActivityPackage *infoPackage = [self defaultActivityPackage];
     infoPackage.path = @"/sdk_info";
     infoPackage.activityKind = ADJActivityKindInfo;
@@ -133,7 +122,34 @@ - (ADJActivityPackage *)buildAdRevenuePackage:(NSString *)source payload:(NSData
 }
 
 - (ADJActivityPackage *)buildClickPackage:(NSString *)clickSource {
+    return [self buildClickPackage:clickSource extraParameters:nil];
+}
+
+- (ADJActivityPackage *)buildClickPackage:(NSString *)clickSource
+                                    token:(NSString *)token
+                          errorCodeNumber:(NSNumber *)errorCodeNumber {
+
+    NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
+    
+    if (token != nil) {
+        [ADJPackageBuilder parameters:parameters
+                            setString:token
+                               forKey:ADJAttributionTokenParameter];
+    }
+    if (errorCodeNumber != nil) {
+        [ADJPackageBuilder parameters:parameters
+                               setInt:errorCodeNumber.intValue
+                               forKey:@"error_code"];
+    }
+    
+    return [self buildClickPackage:clickSource extraParameters:parameters];
+}
+
+- (ADJActivityPackage *)buildClickPackage:(NSString *)clickSource extraParameters:(NSDictionary *)extraParameters {
     NSMutableDictionary *parameters = [self getClickParameters:clickSource];
+    if (extraParameters != nil) {
+        [parameters addEntriesFromDictionary:extraParameters];
+    }
     
     if ([clickSource isEqualToString:ADJiAdPackageKey]) {
         // send iAd errors in the parameters
@@ -1292,4 +1308,9 @@ + (void)parameters:(NSMutableDictionary *)parameters setData:(NSData *)value for
                            forKey:key];
 }
 
++ (BOOL)isAdServicesPackage:(ADJActivityPackage *)activityPackage {
+    NSString *source = activityPackage.parameters[@"source"];
+    return ([ADJUtil isNotNull:source] && [source isEqualToString:ADJAdServicesPackageKey]);
+}
+
 @end
diff --git a/Adjust/ADJSdkClickHandler.m b/Adjust/ADJSdkClickHandler.m
index 309250297..a19f0886e 100644
--- a/Adjust/ADJSdkClickHandler.m
+++ b/Adjust/ADJSdkClickHandler.m
@@ -12,6 +12,8 @@
 #import "ADJSdkClickHandler.h"
 #import "ADJBackoffStrategy.h"
 #import "ADJUserDefaults.h"
+#import "ADJPackageBuilder.h"
+#import "UIDevice+ADJAdditions.h"
 
 static const char * const kInternalQueueName = "com.adjust.SdkClickQueue";
 
@@ -144,6 +146,23 @@ - (void)sendNextSdkClickI:(ADJSdkClickHandler *)selfI {
         [selfI sendNextSdkClick];
         return;
     }
+    
+    if ([ADJPackageBuilder isAdServicesPackage:sdkClickPackage]) {
+        // refresh token
+        NSString *token = [[UIDevice currentDevice] adjFetchAdServicesAttribution:nil];
+        
+        if (token != nil && ![sdkClickPackage.parameters[ADJAttributionTokenParameter] isEqualToString:token]) {
+            // update token
+            [ADJPackageBuilder parameters:sdkClickPackage.parameters
+                                setString:token
+                                   forKey:ADJAttributionTokenParameter];
+            
+            // update created_at
+            [ADJPackageBuilder parameters:sdkClickPackage.parameters
+                              setDate1970:[NSDate.date timeIntervalSince1970]
+                                   forKey:@"created_at"];
+        }
+    }
 
     dispatch_block_t work = ^{
         NSDictionary *sendingParameters = @{
@@ -194,6 +213,13 @@ - (void)responseCallback:(ADJResponseData *)responseData {
     if ([responseData.sdkClickPackage.parameters.allValues containsObject:ADJiAdPackageKey]) {
         // received iAd click package response, clear the errors from UserDefaults
         [ADJUserDefaults cleariAdErrors];
+        [self.logger info:@"Received iAd click response"];
+    }
+    
+    if ([ADJPackageBuilder isAdServicesPackage:responseData.sdkClickPackage]) {
+        // set as tracked
+        [ADJUserDefaults setAdServicesTracked];
+        [self.logger info:@"Received Apple Ads click response"];
     }
 
     [self.activityHandler finishedTracking:responseData];
diff --git a/Adjust/ADJUserDefaults.h b/Adjust/ADJUserDefaults.h
index 8849702f0..e9c76acf5 100644
--- a/Adjust/ADJUserDefaults.h
+++ b/Adjust/ADJUserDefaults.h
@@ -51,4 +51,7 @@
 + (NSDictionary<NSString *, NSNumber *> *)getiAdErrors;
 + (void)cleariAdErrors;
 
++ (void)setAdServicesTracked;
++ (BOOL)getAdServicesTracked;
+
 @end
diff --git a/Adjust/ADJUserDefaults.m b/Adjust/ADJUserDefaults.m
index c28db5045..ce6f4214f 100644
--- a/Adjust/ADJUserDefaults.m
+++ b/Adjust/ADJUserDefaults.m
@@ -16,6 +16,7 @@
 static NSString * const PREFS_KEY_DEEPLINK_CLICK_TIME = @"adj_deeplink_click_time";
 static NSString * const PREFS_KEY_DISABLE_THIRD_PARTY_SHARING = @"adj_disable_third_party_sharing";
 static NSString * const PREFS_KEY_IAD_ERRORS = @"adj_iad_errors";
+static NSString * const PREFS_KEY_ADSERVICES_TRACKED = @"adj_adservices_tracked";
 
 @implementation ADJUserDefaults
 
@@ -120,6 +121,14 @@ + (void)cleariAdErrors {
     [[NSUserDefaults standardUserDefaults] removeObjectForKey:PREFS_KEY_IAD_ERRORS];
 }
 
++ (void)setAdServicesTracked {
+    [[NSUserDefaults standardUserDefaults] setBool:YES forKey:PREFS_KEY_ADSERVICES_TRACKED];
+}
+
++ (BOOL)getAdServicesTracked {
+    return [[NSUserDefaults standardUserDefaults] boolForKey:PREFS_KEY_ADSERVICES_TRACKED];
+}
+
 + (void)clearAdjustStuff {
     [[NSUserDefaults standardUserDefaults] removeObjectForKey:PREFS_KEY_PUSH_TOKEN_DATA];
     [[NSUserDefaults standardUserDefaults] removeObjectForKey:PREFS_KEY_PUSH_TOKEN_STRING];
@@ -128,6 +137,8 @@ + (void)clearAdjustStuff {
     [[NSUserDefaults standardUserDefaults] removeObjectForKey:PREFS_KEY_DEEPLINK_URL];
     [[NSUserDefaults standardUserDefaults] removeObjectForKey:PREFS_KEY_DEEPLINK_CLICK_TIME];
     [[NSUserDefaults standardUserDefaults] removeObjectForKey:PREFS_KEY_DISABLE_THIRD_PARTY_SHARING];
+    [[NSUserDefaults standardUserDefaults] removeObjectForKey:PREFS_KEY_IAD_ERRORS];
+    [[NSUserDefaults standardUserDefaults] removeObjectForKey:PREFS_KEY_ADSERVICES_TRACKED];
 }
 
 @end
diff --git a/Adjust/ADJUtil.m b/Adjust/ADJUtil.m
index e538da63b..86a7ef3e7 100644
--- a/Adjust/ADJUtil.m
+++ b/Adjust/ADJUtil.m
@@ -37,7 +37,7 @@
 static CTTelephonyNetworkInfo *networkInfo = nil;
 #endif
 
-static NSString * const kClientSdk                  = @"ios4.25.1";
+static NSString * const kClientSdk                  = @"ios4.25.2";
 static NSString * const kDeeplinkParam              = @"deep_link=";
 static NSString * const kSchemeDelimiter            = @"://";
 static NSString * const kDefaultScheme              = @"AdjustUniversalScheme";
diff --git a/Adjust/Adjust.h b/Adjust/Adjust.h
index a61dad0c8..794af6b56 100644
--- a/Adjust/Adjust.h
+++ b/Adjust/Adjust.h
@@ -2,7 +2,7 @@
 //  Adjust.h
 //  Adjust
 //
-//  V4.25.1
+//  V4.25.2
 //  Created by Christian Wellenbrock (wellle) on 23rd July 2013.
 //  Copyright © 2012-2017 Adjust GmbH. All rights reserved.
 //
@@ -45,6 +45,7 @@ extern NSString * __nonnull const ADJEnvironmentProduction;
 extern NSString * __nonnull const ADJAdRevenueSourceMopub;
 extern NSString * __nonnull const ADJAdRevenueSourceAdmob;
 extern NSString * __nonnull const ADJAdRevenueSourceFbNativeAd;
+extern NSString * __nonnull const ADJAdRevenueSourceFbAudienceNetwork;
 extern NSString * __nonnull const ADJAdRevenueSourceIronsource;
 extern NSString * __nonnull const ADJAdRevenueSourceFyber;
 extern NSString * __nonnull const ADJAdRevenueSourceAerserv;
diff --git a/Adjust/Adjust.m b/Adjust/Adjust.m
index faca96eef..6181294f9 100644
--- a/Adjust/Adjust.m
+++ b/Adjust/Adjust.m
@@ -25,6 +25,7 @@
 NSString * const ADJAdRevenueSourceMopub = @"mopub";
 NSString * const ADJAdRevenueSourceAdmob = @"admob";
 NSString * const ADJAdRevenueSourceFbNativeAd = @"facebook_native_ad";
+NSString * const ADJAdRevenueSourceFbAudienceNetwork = @"facebook_audience_network";
 NSString * const ADJAdRevenueSourceIronsource = @"ironsource";
 NSString * const ADJAdRevenueSourceFyber = @"fyber";
 NSString * const ADJAdRevenueSourceAerserv = @"aerserv";
diff --git a/AdjustBridge/AdjustBridgeRegister.m b/AdjustBridge/AdjustBridgeRegister.m
index d37210af5..533422f42 100644
--- a/AdjustBridge/AdjustBridgeRegister.m
+++ b/AdjustBridge/AdjustBridgeRegister.m
@@ -241,7 +241,7 @@ + (NSString *)adjust_js {
                 if (this.sdkPrefix) {
                     return this.sdkPrefix;
                 } else {
-                    return 'web-bridge4.25.1';
+                    return 'web-bridge4.25.2';
                 }
             },
             setTestOptions: function(testOptions) {
diff --git a/AdjustTests/AdjustUnitTests/ADJPackageFields.m b/AdjustTests/AdjustUnitTests/ADJPackageFields.m
index f6e2ffbe6..1e9f2382f 100644
--- a/AdjustTests/AdjustUnitTests/ADJPackageFields.m
+++ b/AdjustTests/AdjustUnitTests/ADJPackageFields.m
@@ -16,7 +16,7 @@ - (id) init {
 
     // default values
     self.appToken = @"qwerty123456";
-    self.clientSdk = @"ios4.25.1";
+    self.clientSdk = @"ios4.25.2";
     self.suffix = @"";
     self.environment = @"sandbox";
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8936cb15c..6084edbe2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+### Version 4.25.2 (1st February 2021)
+#### Added
+- Added Facebook audience network ad revenue source string.
+
+---
+
 ### Version 4.25.1 (18th January 2021)
 #### Fixed
 - Fixed missing header error for SPM users from v4.25.0.
diff --git a/README.md b/README.md
index 0bf0d3e38..2da879065 100644
--- a/README.md
+++ b/README.md
@@ -79,13 +79,13 @@ We will describe the steps to integrate the Adjust SDK into your iOS project. We
 If you're using [CocoaPods][cocoapods], you can add the following line to your `Podfile` and continue from [this step](#sdk-integrate):
 
 ```ruby
-pod 'Adjust', '~> 4.25.1'
+pod 'Adjust', '~> 4.25.2'
 ```
 
 or:
 
 ```ruby
-pod 'Adjust', :git => 'https://github.com/adjust/ios_sdk.git', :tag => 'v4.25.1'
+pod 'Adjust', :git => 'https://github.com/adjust/ios_sdk.git', :tag => 'v4.25.2'
 ```
 
 ---
diff --git a/VERSION b/VERSION
index 72e19f2fd..526650444 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.25.1
+4.25.2
diff --git a/doc/chinese/README.md b/doc/chinese/README.md
index 69c59268c..7decf6952 100644
--- a/doc/chinese/README.md
+++ b/doc/chinese/README.md
@@ -76,13 +76,13 @@ Read this in other languages: [English][en-readme], [中文][zh-readme], [日本
 如果您正在使用[CocoaPods][cocoapods],您可以将以下代码行添加至 `Podfile`，然后继续进行[此步骤](#sdk-integrate):
 
 ```ruby
-pod 'Adjust', '~> 4.25.1'
+pod 'Adjust', '~> 4.25.2'
 ```
 
 或:
 
 ```ruby
-pod 'Adjust', :git => 'https://github.com/adjust/ios_sdk.git', :tag => 'v4.25.1'
+pod 'Adjust', :git => 'https://github.com/adjust/ios_sdk.git', :tag => 'v4.25.2'
 ```
 
 ---
diff --git a/doc/english/migrate.md b/doc/english/migrate.md
index 2f19a2724..72228fbcf 100644
--- a/doc/english/migrate.md
+++ b/doc/english/migrate.md
@@ -1,4 +1,4 @@
-## Migrate your Adjust SDK for iOS to v4.25.1 from v3.4.0
+## Migrate your Adjust SDK for iOS to v4.25.2 from v3.4.0
 
 ### Initial setup
 
diff --git a/doc/english/web_views.md b/doc/english/web_views.md
index add40a29b..09ff5c071 100644
--- a/doc/english/web_views.md
+++ b/doc/english/web_views.md
@@ -64,7 +64,7 @@ We will describe the steps to integrate the Adjust SDK into your iOS project. We
 If you're using [CocoaPods][cocoapods], you can add the following line to your `Podfile` and continue from [this step](#sdk-integrate):
 
 ```ruby
-pod 'Adjust/WebBridge', '~> 4.25.1'
+pod 'Adjust/WebBridge', '~> 4.25.2'
 ```
 
 ---
diff --git a/doc/japanese/README.md b/doc/japanese/README.md
index bbb1a1849..f3e551619 100644
--- a/doc/japanese/README.md
+++ b/doc/japanese/README.md
@@ -25,13 +25,13 @@ adjust SDKをiOSプロジェクトに連携する手順を説明します。
 [こちらの手順](#sdk-integrate)に進んでください。
 
 ```ruby
-pod 'Adjust', '~> 4.25.1'
+pod 'Adjust', '~> 4.25.2'
 ```
 
 または
 
 ```ruby
-pod 'Adjust', :git => 'https://github.com/adjust/ios_sdk.git', :tag => 'v4.25.1'
+pod 'Adjust', :git => 'https://github.com/adjust/ios_sdk.git', :tag => 'v4.25.2'
 ```
 
 ---
diff --git a/doc/korean/README.md b/doc/korean/README.md
index 9f7fef7fa..5a84bf1de 100644
--- a/doc/korean/README.md
+++ b/doc/korean/README.md
@@ -76,13 +76,13 @@ iOS 개발용 Xcode를 사용한다는 가정하에 iOS 프로젝트에 Adjust S
 [CocoaPods][cocoapods]를 사용하는 경우, 다음 내용을 `Podfile`에 추가한 후 [해당 단계](#sdk-integrate)를 완료하세요.
 
 ```ruby
-pod 'Adjust', '~> 4.25.1'
+pod 'Adjust', '~> 4.25.2'
 ```
 
 또는:
 
 ```ruby
-pod 'Adjust', :git => 'https://github.com/adjust/ios_sdk.git', :tag => 'v4.25.1'
+pod 'Adjust', :git => 'https://github.com/adjust/ios_sdk.git', :tag => 'v4.25.2'
 ```
 
 ---
diff --git a/doc/korean/web_views.md b/doc/korean/web_views.md
index b108eac24..4d82a47f9 100644
--- a/doc/korean/web_views.md
+++ b/doc/korean/web_views.md
@@ -64,7 +64,7 @@ iOS 개발용 Xcode를 사용한다는 가정하에 iOS 프로젝트에 Adjust S
 [CocoaPods][cocoapods]를 사용하는 경우, 다음 내용을 'Podfile'에 추가한 후 [해당 단계](#sdk-integrate)를 완료하세요.
 
 ```ruby
-pod 'Adjust/WebBridge', '~> 4.25.1'
+pod 'Adjust/WebBridge', '~> 4.25.2'
 ```
 
 ---
diff --git a/doc/migrate.md b/doc/migrate.md
index 2f19a2724..72228fbcf 100644
--- a/doc/migrate.md
+++ b/doc/migrate.md
@@ -1,4 +1,4 @@
-## Migrate your Adjust SDK for iOS to v4.25.1 from v3.4.0
+## Migrate your Adjust SDK for iOS to v4.25.2 from v3.4.0
 
 ### Initial setup