Helix currently supports the following wallets.
Hot Wallets
MetaMask
Torus
Keplr (this integration is experimental)
Cold Wallets
Ledger
Trezor
To connect any one of these wallets, click on Connect Wallet at the top right-hand corner of www.HelixApp.com. Select any one of the options and follow the instructions that pop-up, depending on the wallet that you choose. Refer here for a quick guide on how to connect to your MetaMask wallet on Helix.