how to installed iOS 8.0 application in iPhone 4 iOS 7.0.2

ios 7.0.2 not support lots of application in app store by using this method we can installed any application from app store 1 go itunes 2 app store 3 search which application u want to installed 4 click on get 5 put ur apple id and password 6 after download completed go to ur iphone 7 in iphone go app store 8 click on update 9 click on purchased 10 now hear show ur app cation cloud click on that 11 asking for download click on that buy product by this link support https://www.amazon.in/gp/join-and-earn?_encoding=UTF8&ref=mrp_44571_shr_cpbd_rf_d&refcust=62ACGFNQH2VJ25S57SSFIJE37A thank you for watching any query comment .