Aster Key is a mobile app empowering consumers to anonymize, organize, and encrypt their financial data on their mobile phones. Their data is stripped of personally identifiable information which is stored and encrypted separately. Patent: 11170130. Through the app, consumers can create an ultra-secure financial statement, generate a proof of funds letter, or anonymously initiate a loan with participating lenders. Importantly, Aster Key does not store the consumer’s financial data on its servers; it resides solely on the consumer’s mobile device. Aster Key is not a lender. For more information, refer to our FAQs and Privacy Policy.