Hi doctorsusony,
Welcome to the Sony Community!
The PlayMemories Mobile app is compatible with the said devices, but it is not available for download on some areas/countries. We recommend contacting your local Sony Support team for assistance with your concern.
Please contact the Sony offices/Sony representative offices nearest to your place of residence in Asia Pacific region http://www.sony-asia.com/countryselector.html?hpid=countryselector:AsiaPacific. Due to proximity, they are in a better position to respond to your questions or concerns.
If my post answers your question, please mark it as "Accept as Solution". Thanks_Mitch