Trust Wallet does not hold or control any Crypto , it just gives the user access to it. Trust Wallet is free to download and does not earn anything when you use it.
Read moreShould I transfer my crypto to a wallet?
It wouldn’t hurt if you kept them on an exchange, however, the safest way is to keep them on a wallet . That way you are the owner of your private keys and you won’t rely on the exchange to keep them safe. It all depends on how much risk you are comfortable with and also how much crypto you are talking about.
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