Online backup service allows you to sync notes across mobile devices.

If you sign up for online backup service, your notes will be backed up to the cloud storage. Then you can get access to your notes from other mobile devices. Therefore, you can easily transfer your notes to a new device when changing devices. Even when you lose a device, you can restore the notes backed up to the cloud storage.

ColorNote automatically syncs notes once a day, and also you can manually sync your notes. Your notes will be encrypted with the AES standard before being uploaded to the cloud storage. AES is the encryption standard that banks use to secure customer data.