I have recently used rabbit wallet and found it quite interesting. The good thing is that it is open source and decentralized.
Not it's not because it does not support Bitcoin, but it appears to be better than metamask wallet.
Is this wallet safe to store our cryptocurrencies and can be used as an alternative to the unstoppable wallet or trust wallet? Also, the swapping rates I found are better than any other instant exchanges and again it's a decentralized service.
This is a hot wallet unless you are using it in combination with hardware wallets, and it is totally different from unstoppable wallet.
Solid alternative for Unstoppable walet that actually supports Bitcoin, monero and other coins is called Stack wallet-