Answer:
It's up to personal preference.
Explanation:
iPhone/Apple gives more compliments to security than Android.
Android has more friendly user GUI and dev tools.
The LDAP protocol is used to access directory listings within active directory or other directory services.
LDAP stands for Lightweight Directory Access Protocol. The function of this protocol is to enale access to an existing direcory. LDAP is based on a client-server model.