Sienna Text Messages

Last updated: October 10, 2026

Sienna text messages is a personal program of Sean McManus, an individual (sole proprietor). Sienna is Sean's personal AI assistant. The program is separate from Asen Technology's defense and space business; this page is simply hosted on the website of Sean's company.

What this program is

Conversational text messages between Sean McManus and his personal assistant, Sienna. Sienna replies to the texts Sean sends her and occasionally sends him personal check-ins and reminders.

Who receives messages

Only the owner, Sean McManus, at his own mobile number. The program is not offered to the public, and there is no sign-up for anyone else.

How opt-in works

1. The owner texts START to +1 805-617-1357 from his own mobile phone.
2. He receives this confirmation:

   Sienna: You're subscribed to texts from Sienna, Sean McManus's personal assistant. Up to 5 msgs/day. Msg & data rates may apply. Reply HELP for help, STOP to opt out.

3. Sienna's messages begin only after that confirmation.

No other opt-in path exists: there is no website form, paper form, verbal or QR-code sign-up.

Message frequency

Message frequency varies, up to 5 messages per day.

Cost

Message and data rates may apply.

How to opt out

Reply STOP at any time. Also accepted: CANCEL, END, QUIT, UNSUBSCRIBE, STOPALL, REVOKE, OPTOUT. After opting out, no further messages are sent. Reply START to resubscribe.

Help

Reply HELP or INFO for help, or email contact@asentechnology.com.

Example messages

Sienna: Morning, Sean! Hope the coffee's strong today ☕ Reply STOP to opt out.

Sienna: Your dentist appointment is Tuesday at 2pm. Reply STOP to opt out.

Privacy and terms

Mobile numbers and SMS opt-in data and consent are not shared, sold or rented to third parties or affiliates for marketing or promotional purposes. See the Privacy Policy and the Terms for full details.

Contact

Email contact@asentechnology.com.