GreenAddress is a multi-platform Bitcoin Wallet service.
This wallet provides security, privacy, and ease of use through multi-platform mobility.
Easy paper wallet backup via BIP39 mnemonics
2FA via phone/sms/e-mail
Multisignature addresses between client and server, for enhanced security
Instant transaction confirmation with GreenAddress transaction attestation greenaddress.it/faq
In the event of service disappearance funds can be recovered via nLockTime transactions and our open-source tools https://greenaddress.github.io/gentle/#/view1
Please note that another GreenAddress app GreenBits is available for Android https://play.google.com/store/apps/details?id=com.greenaddress.greenbits_android_wallet&hl=en ; That wallet is designed for the native Android experience, and includes more advanced Bitcoin validation features. You can also use your GreenAddress login for GreenBits as well as it is using the same service.