How to opt in to Portanus text messages

The Portanus platform ("Portanus"), operated by Twin Raven Studios, Inc., sends automated account, security, and authentication text messages to its own signed-in users. This page reproduces the in-app opt-in screen exactly so you can see the consent language before you begin. Text messaging is off by default, is never a condition of using Portanus, and is transactional only — we do not send marketing or promotional texts under this program.

Opt in, step by step

1. Sign in to Portanus and open Account → Notification Preferences (the Text messages (SMS) card).
2. Enter your US mobile number.
3. Read and check the consent box (shown below). It is a separate, unchecked-by-default checkbox — not bundled with accepting our Terms or Privacy Policy.
4. We text a 6-digit verification code to that number. Enter it to prove the number is yours (double opt-in).
5. Once verified, SMS turns on. You can reply STOP to any message, or turn SMS off in settings, at any time.

The opt-in screen

Illustration of the actual in-app form (Account → Notification Preferences → Text messages (SMS)). Inputs are inert here; the working form requires a signed-in account.

Back to the SMS policy

What you'll receive after opting in

Right after your number is verified, we confirm the subscription:

Portanus: You're now subscribed to account & security texts — 2FA codes, sign-in/security alerts, and account notices. Msg frequency varies. Msg & data rates may apply. Reply HELP for help, STOP to cancel.

You may then receive:

• Two-factor authentication (2FA) — one-time sign-in verification codes.
• Security alerts — e.g. a new sign-in, a password or MFA change, or a platform operator starting a support session on your workspace.
• Account notifications — important, time-sensitive notices about your account.

Sample messages:

• "Portanus: Your verification code is 481902. It expires in 10 minutes. Reply STOP to opt out."
• "Portanus security alert: a new sign-in to your account was detected from Chrome on macOS. If this wasn't you, reset your password now. Reply STOP to opt out."
• "Portanus: A platform operator has started a support session on your workspace. Reply STOP to opt out, HELP for help."

Frequency, rates, and help

Message frequency varies with your account activity and security events. Message and data rates may apply, per your mobile carrier's plan; Portanus does not charge you for text messages. Reply STOP to any message to opt out (reply START to resubscribe), or HELP for help. Standard carrier keywords (STOP, UNSTOP, START, HELP) are supported. The HELP reply reads:

Portanus account & security alerts. Msg & data rates may apply. Msg frequency varies. Help: support@twinravenstudios.com. Reply STOP to cancel.

Your privacy

We do not sell, rent, or trade mobile phone numbers or SMS opt-in information, and we do not share mobile opt-in information or consent with any third parties or affiliates for marketing or promotional purposes. Your number is used solely to deliver the messages you requested, and is shared only with our SMS-delivery provider (Twilio) under contract. Full details are in the SMS/Text Messaging Policy and the Privacy Policy.