Many of us prefer to hold multiple kind of coins. What do you prefer: holding it in a sigle kind of wallet or have it on a different kind of wallet?
Personally, I prefer to store in an opensource multi wallet that support all my preferred coin and even ERC20 token, its the only opensource multiwallet available called Hodler and so far I find it good. Do you think, this is really good idea?

It's really convenient, but I'm not sure about its safety. There were too many cases that were hacked and all their properties were lost in just a moment. I'm really scared of this.
Instead of using a wallet to stock up on altcoins, I will use many wallets to store more altcoins.
It's more inconvenient and time-consuming but it is safer.