You don't need to KYC as it's just a mobile wallet — same with all the other crypto wallets out there. I'd be surprised if Signal integrated features in the future that require KYC.
You already need KYC in form of a phone number that can receive SMS. In many countries, that is not possible without government ID and being a resident.
In my country it’s actually easier to legally open a verified trading account on a local cryptocurrency exchange than it is to get a voice/SMS SIM if you’re not a registered local resident.
In my country it’s actually easier to legally open a verified trading account on a local cryptocurrency exchange than it is to get a voice/SMS SIM if you’re not a registered local resident.