The inventor and former founder of Twitter, @ Jack (who also served as Twitter's CEO), recently released Bitchat, an end-to-end encrypted chat software using Bluetooth network, which is now also available on the Apple Store. This guy's creativity is really good. On the same day, Bitchat climbed to over 100 free listings on the Apple Store. This product only needs Bluetooth network instead of Internet. It can also improve the distance for short distance communication and the future population. And it is end-to-end encryption. Use Bluetooth mesh network to chat with people around you. No need for their phone number or email. Suitable for any occasion's side group chat. Message transmission via Bluetooth grid without Internet! Encrypt private messages. ”