I don't know about the other wallet but for Guarda.com. Users should use it with caution. They offer a backup downloads of a text file containing your encrypt private keys. There is no option to back up seeds. You can only use that text file on Guarda as far as I know. Should Guard disappear, your downloaded back-up is useless and might not access your funds forever.

Importing to another wallet is also a pain. You have to import individual private keys of different coins.