If you run your own lightning node, lightning is non-custodial. But strike is just a wallet that uses their own lightning node. So, if using strike, strike has custody of your funds.
>If you run your own lightning node, lightning is non-custodial. But strike is just a wallet that uses their own lightning node.
I don't know the implementation details of the strike app, but I don't see why you can't keep the signing keys on the device itself (as opposed to the server), and the server is only used for communication with the bitcoin network. That way you don't need to run a lighting node, but they don't control your funds either. Thin wallets use this model I believe.
You seem to be correct, based on their suggestion that you download another lightning wallet[1]. My prior impression was that strike contained a lightning wallet and a custodial wallet (for their fiat exchange). That said, with low cost and instant lightning network transactions you can basically use it in a non custodial way (ie. transfer out the moment you exchange for fiat).
