Depending on your specific needs—whether it's simple conversion or international money transfers—these are the highest-rated options available on the Google Play Store: Best For : All-in-one use.

: Supports 200+ currencies including Bitcoin and Ethereum, provides a personal favorite list, and includes a dark mode to save battery.

: Uses the real mid-market exchange rate without hidden markups. It also offers a multi-currency account and debit card for spending in 160 countries.