2FA methods supported by Substack
Adding two-factor authentication is one of the most effective ways to protect your Substack account. With TOTP support, you can generate Substack verification codes directly in the Authenticator App.
Authenticator app (TOTP)
Substack lets you use time-based one-time passwords, so you can generate verification codes in an authenticator app on your device — no network or SMS needed.
Substack 2FA — Frequently asked questions
Does Substack support an authenticator app?
Yes. Substack supports time-based one-time passwords (TOTP), so you can add it to the Authenticator App and generate verification codes right on your device.
Which two-factor authentication methods does Substack support?
Substack currently supports: Authenticator app (TOTP).
Is it free to generate Substack codes with the Authenticator App?
Yes. The Authenticator App is free to download, and generating Substack verification codes does not require an account or sign-up.
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