I finally had some time to look thoroughly at these two wallets.

At first, I tried atomicDEX. Sadly, it is in testing phase for Android and iOS and I did not install Windows version.

Then I installed Unstoppable Wallet for Android. And I can say that I was pleased by what I found. UI is adequate for users, the wallet is easy to manage / set-up. It also allows atomic swaps (not for all coins, as far as I saw). Another great feature is the possibility of time-locking transactions. However, this feature is experimental (as the wallet informs) and it's limited to 0.5BTC.

Last, but not least, the wallet work also with Tor. However, I was unable to start Tor. When I select, from app's menu, to activate Tor, it remains in infinite loading. I am not sure if this is a problem determined by my phone or if it is a known bug. However, even if it is a bug, it can be fixed. And having the wallet work through Tor is one of the most safe feature possible.

Thanks again for your recommendations, dekbit98!