One of the few exclusively-mobile wallets, offers support for over 20 coins and instant exchanges.
A simple as a single pairing of a Bitcoin Cash address with its corresponding private key
WireX is a BTC wallet that doubles as a credit card, which can be physically ordered.
Bills itself as an "online trustless wallet for Litecoin," private keys are stored client-side.
Highly regarded in the bitcoin community, this is an easy-to-use, web-based wallet.