We chose to use Apple/Google sign-in (as opposed to email/password) because it offers more security and helps prevent spam and inauthentic accounts. Plus, if you're downloading the app from the App or Play Stores, you already have at least one.
The only thing we collect from this process is your email address itself (in the case of Google, your gmail address; in the case of Apple, an encrypted version of your address). We do NOT access your email, or receive any other permissions.
It's simply a way to sign in, make sure you're a real person, and prove that you own your byte account.