We've seen a lot of these wallets turning into a scam. They lure users by using words like "anonymous", "private", "we don't give your data", a Tor URL etc.
The truth is there is nothing backing their claim. The service is not open source so you can't know what's going on under the hood. It's better to stick to wallets that at least give you access to your seed/ private keys and use third party mixers.
i agree with you sir, there are a lot of companies that saying that there wallet is safe that holds other tokens and has good advertising to get investors for their project apparently the project turns out a scam, after they get a lot of investors they will disappear like bubble.