Turn on two-factor authentication
Two-factor authentication (2FA) adds a text-message code to every sign-in. FIYR sends codes by SMS to a US mobile number. There are no authenticator apps or backup codes, so keep your number up to date.
Before you start
- You need a US mobile number (10 digits) that can receive texts.
- Verify your email first. If Settings shows "Email not verified", click Resend and follow the link in the email.
Turn it on
- Open Settings, then Security.
- Click the Two-Factor Authentication switch.
- If asked, confirm it is you: enter your password under "Verify Identity", or sign in with Google in the pop-up.
- Enter your phone number and click Send Code.
- Enter the 6-digit code sent to your phone and click Verify.
- You will see "All Set!". Click Done.
Signing in with 2FA
After you enter your password or sign in with Google or Apple, a "Two-Factor Verification" box asks for the 6-digit code texted to your phone. Enter it to finish signing in. If the text does not arrive, click Resend code.
Turn it off
Open Settings, then Security, and click the Two-Factor Authentication switch again. You may be asked to confirm your identity first. You will see "Two-factor authentication disabled."
Limits to know
- SMS only. Authenticator apps and security keys are not supported.
- US numbers only. Numbers outside the US cannot be used.
- One phone, no backup codes. If you lose access to the phone, you cannot sign in on your own.
If you see an error
| Message | What to do |
|---|---|
| Enter a valid 10-digit US phone number | Type the number with area code, no country code. |
| Invalid code / Code expired | Request a new code and enter it promptly. |
| Too many attempts. Try again later. | Wait a few minutes before trying again. |
| Failed to send code. | Make sure your email is verified, then try again. |
If you only ever sign in with Apple and the setup asks for a password you do not have, email support and we will help.
Common questions
Can I use an authenticator app?
No. FIYR sends 2FA codes by text message only.
Can I use a phone number outside the US?
No. 2FA currently accepts 10-digit US numbers only.
Are there backup codes?
No. If you lose access to your phone, email support@fiyr.app.
The setup says Failed to send code.
Verify your email first (Settings shows a Resend link if it is not verified), then try again.
Still stuck?
Email us. A real person who builds FIYR reads every message.