Case #1. Top up your wallet with a different cryptocurrency
For example, you need to exchange Lisk (LSK) to Bitcoin (BTC) in Freewallet.
Launch your Freewallet app or log in web wallet, then tap “Receive” – “Top up with other currencies” and find LSK on the list. This way you will get deposit address generated to top up your BTC wallet with Lisk currency.
Copy the shown address, switch to your Lisk wallet and proceed with sending required amount of LSK.
Tap “Send” – “By address” – insert BTC deposit address and confirm exchange by clicking on the “Continue” button.
Case #2. Exchange one cryptocurrency to another inside Freewallet.
This is easier. To start, just click on "Exchange", select the currency you wish to exchange for another.
Then click on "Continue" and proceed with the exchange process.