Wasabi wallet is a CoinJoin wallet, you can read their FAQ before you can think of using it at all to know what their fee look like, also like you implied, it support only computer, no mobile version.
Available for mac, windows & linux and frequently asked questions
Quote from: https://wasabiwallet.io/#:~:text=You%20currently%20pay%20a%20fee,%25%20*%2050%20(%3D0.15%25).
You currently pay a fee of 0.003% * anonymity set. If the anonymity set of a coin is 50 then you pay 0.003% * 50 (=0.15%).
People uses these types of what for privacy, especially CoinJoin wallet like wasabi while considering not to directly not sending coin to a centralized service for it not to be seized because it was CoinJoined.
How can tainted coins becomes hard to be recognized by centralized services
But Samourai wallet can still also be used for making normal transaction also. You can read about making use of mixer to enhance privacy. These are lists of reputed mixers
2021 List Bitcoin Mixers Bitcoin Tumblers Websites
The mobile wallet I have used before and I like is electrum, it is also open source wallet, but it can not be compared to electrum on computer which have more features that can enhance privacy. But if you need a privacy wallet, I will suggest you to go for Bitcoin Core which will allow you to run your own node and using it with Tor, but it will require over 400 gigabyte to download the full blockchain.
But if you need an SPV wallet, I will advice you to go for Electrum, but know that SPV wallets connects on public server and sychronize with the blockchain.
