Airbitz (San Diego): Airbitz provides the most fluid user experience in a Bitcoin wallet combined with a top quality, proximity searchable business directory of Bitcoin companies and merchants that accept Bitcoin. Airbitz believes strongly in company transparency and customer privacy. No information about wallet users' logins, passwords, bitcoin addresses, e-mails, or names are ever known by Airbitz or anyone other than the wallet users. All information is client side encrypted with industry standard AES256 using GPU resistant password derivation algorithms..