My application crashes on device

i am new to iphone development and currently i am working on client server applications but the application run a开发者_运维知识库nd work good on simulator but when i try it on device then the application crash after some times .Now i dont know why this will happend because i release every object which are decalre with alloc or init.but still crash on device . My application are like (Rate My puppy application)which are store on apple store . please help me if any one have the solutions .

You are almost certainly trying to access an object that has already been released. The simulator seems to be more forgiving in this respect. Do you get an EXC_BAD_ACCESS message on the console?