Armory wallet is a non-multi-wallet that supports the only Bitcoin probably because Bitcoin was the only dominant currency when the wallet was launched in 2011. It's regarded as the most secured wallet for Bitcoin but I don't seem to show interest in the wallet cause there are other secured wallets around that supports multi cryptocurrencies, some even support up a hundred virtual assets so I see no reason for this wallet to be special.
The wallet doesn't support mobile devices, I have done a thorough search on google but still couldn't find an app for the wallet, this I consider a big downside. Generally, speaking Armory has many outstanding benefits but it's not just my kind of wallet.