I used shapeshift in 2016/2017 with changelly through my wallet app called coinomi and they both works like same but now KYC is a must for shapeshift so if you are looking for an alternative changelly is the best, its old too around same time with shapeshift
You have to be careful about Changelly though. I have seen complaints on reddit where they have held held user funds until completes KYC verification especially when your transaction is labelled as "suspicious"