diff --git a/YuMi/Config/ClientConfig.m b/YuMi/Config/ClientConfig.m
index 7c01c6d2..dee0b475 100644
--- a/YuMi/Config/ClientConfig.m
+++ b/YuMi/Config/ClientConfig.m
@@ -32,10 +32,12 @@
 	static ClientConfig * config;
 	dispatch_once(&onceToken, ^{
 		config = [[ClientConfig alloc] init];
+        config.isTF = [ClientConfig isTestFlight];
 	});
 	return config;
 }
--(BOOL)isTestFlight{
+
++(BOOL)isTestFlight{
     NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];
     NSString *receiptURLString = [receiptURL path];
     BOOL isTestFlight = ([receiptURLString containsString:@"sandboxReceipt"] || [receiptURLString containsString:@"_MASReceipt/receipt"]);
@@ -115,11 +117,6 @@
 		timer = nil;
 	}
 }
-- (BOOL)isTF{
-    if(!_isTF){
-        _isTF = [self isTestFlight];
-    }
-    return _isTF;
-}
+
 
 @end