Can I use my Unchained vault on a smartphone or tablet?

You can sign on to your account, but not use your keys to sign transactions.

You can sign on to your account by visiting my.unchained.com on any browser using a smartphone or tablet. You can not, however, connect your keys to a mobile device. This affects uploading keys, checking keys, and signing transactions. You must use a laptop or desktop computer on a supported browser with Ledger Live or Trezor Suite installed to perform these actions. Google Chromebooks are not supported.