According to KBBI (Indonesian official dictionary),
Apa = a question word to ask for the name, type or nature of something. Apa usually translated into “what”.
Apakah = a question word for asking non-human objects, asking for a name (e.g. Apakah nama kamu Ani?) and a question word to ask / state the information you want to know (e.g. Apakah piringnya sudah dicuci?). Apakah usually translated into “to be question”