This tutorial provides instructions to create an account in Waves Exchange with the Waves app on your mobile device. Having a Waves Exchange account will enable you to buy, sell, and trade Asimi and Waves, as well as other cryptos. You will also need to have your own wallet outside of Waves Exchange to deposit BTC to Waves in order to purchase Waves and Asimi tokens, or to sell Asimi for BTC and withdraw to your wallet.

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https://hashingadspace.zendesk.com/hc/en-us/articles/4408512588185-How-To-Create-An-Account-On-Your-Phone-In-Waves-Exchange-Using-Your-Email