Last updated: October 21, 2025
We collect only the information necessary to provide our mood tracking service:
By providing your mobile phone number, you expressly consent to receive SMS text messages from Trendline for the following purposes:
We will never share, sell, rent, or provide your mobile phone number to third parties or affiliates for marketing or promotional purposes. Your phone number is used exclusively to deliver the Trendline service to you.
Message and data rates may apply. Message frequency varies based on your preferences but typically one message per day. You can opt-out at any time by replying STOP to any message or by contacting us at johnjacob@hey.com. For help, reply HELP to any message.
We use your information solely to:
We take your privacy seriously. Your data is encrypted in transit and at rest. We never sell, share, rent, or monetize your personal information, including your mobile phone number. Your mood data belongs to you and is used only to provide our service.
Your mobile phone number and personal information will not be shared with third parties or affiliates for marketing, promotional, or any other purposes outside of delivering the Trendline service to you.
We retain your data for as long as you use our service. You can delete your account and all associated data at any time by contacting us at johnjacob@hey.com.
We use Twilio, a trusted SMS service provider, to deliver text messages to you. Twilio processes your phone number solely for the purpose of delivering our messages on our behalf. Twilio does not have access to your mood data or any other personal information beyond what is necessary to deliver SMS messages. Twilio does not use your mobile phone number for marketing or promotional purposes.
We do not share your mobile phone number with any other third parties or affiliates.
Important: Trendline is not a medical device or diagnostic tool. It is designed for personal awareness and tracking purposes only. Your mood data should not be used to make medical decisions. If you have concerns about your mental health, please consult with a qualified healthcare provider.
If you have any questions about this Privacy Policy, please contact us at johnjacob@hey.com
Built by John Jacob • Trendline