xummSigning app & platform. By XRPL Labs.
Description
For users. Interact with the XRP ledger from your smartphone (iOS / Android). Sign transactions and keep your XRP safe by allowing 3rd party applications to send Sign Requests to your mobile device.
For developers. Allow your users to sign transactions to your app / platform using a simple redirect flow, without ever sharing their secrets. Push Sign Requests directly to your user's devices.
Mobile WalletsRipple