Coinomi supports a surprising number of coins, and I have used it as an intermediary. I'm not sure that I would use it for long-term storage without knowing mor

Coinomi supports a surprising number of coins, and I have used it as an intermediary. I'm not sure that I would use it for long-term storage without knowing more about the company. The Ledger Nano S supports "apps" that can provide compatibility with many coins, and could theoretically support many more. (https://www.ledgerwallet.com/cryptocurrencies https://www.ledgerwallet.com/cryptocurrencies)