Methods and systems for token transfer are described herein. A remote computing device may receive, from a mobile computing device, a public key of a public-private key pair. The public key may be associated with a first application of the mobile computing device. The first application may be configured to send credentials to a second application of the mobile computing device. The second application may be isolated from other applications executable on the mobile computing device. The remote computing device may receive, from the first application, a token. The token may have been previously issued to the first application and may have been encrypted, using the public key, by the first application. The remote computing device may send, to the second application, the token to enable the second application to authenticate with a plurality of services that interact with the second application.