Hello,

You can download the wallet here:
https://xtrabytes.global/wallets

If you wish to trade XBY, Crex24 (Centralized Exchange) is very fast and reliable:
https://crex24.com/

On Waves you can trade XFUEL too. For info, check here:
https://support.xtrabytes.global/hc/en-us/articles/360025597271-Waves-Guide


To track the price:
Coincodex:
 - XBY: https://coincodex.com/crypto/xtrabytes/
 - XFUEL: https://coincodex.com/crypto/xfuel/

Also, to track the price of XBY you have World Coin Index: https://www.worldcoinindex.com/coin/xtrabytes
                                            and of course Coingecko: https://www.coingecko.com/en/coins/xtrabytes



Hope that it is clear!