Some top alternatives to CTemplar includes ProtonVPN, Tutanota, ZixEncrypt, Virtru and Protonmail.
No, CTemplar doesn't provide API.
Yes, CTemplar provides a mobile app.
CTemplar is located in Reykjavík, Iceland
CTemplar offers Freemium, Subscription pricing models
The starting price of CTemplar is $6/Month when Billed Yearly