I wouldn't risk using them anymore when there is solid open source multicoin alternatives like Unstoppable.money wallet or Komodo wallet.
I was wondering why I haven't heard of the Komodo wallet and remembered that there was an altcoin with the same name. No idea if it's still alive today. After a bit of research, I realized that AtomicDEX rebranded and changed its name to Komodo Wallet. Their new website is very weird. Many times when you click on something, it wants to download Komodo documents to your computer. They don't have a page that clearly explains all supported coins and tokens, though. It was the same with AtomicDEX.