I thought Async was great, but then I read the terms & conditions as well as the privacy policy. Virtually nothing you do on this app is off limits for what is allowed in the company's collection, use, and/or sale (sometimes called "sharing"). Any message you receive ought to be considered 0% private. This reservation of rights to the collection, sale, and use of user data (including all messages/voice memos) is unduly overbroad and ought to be more obvious rather than tucked away in lengthy legal documents. This is a shame because the app otherwise seemed worthy of use.