Terms

Effective October 14, 2026

Birthday Sprinkles is a small, invite-only birthday reminder service operated by Green Hour Studio, LLC.

Using the service

Use a phone number you control, keep your details accurate, and don’t misuse the service. We’ll ask for SMS consent during signup; visiting this site does not subscribe you.

The service does not currently support phone-number changes or birthday-list transfers. A new number requires a new invitation and account, and you will need to add your birthdays again.

Text messages

Texts include birthday reminders, related replies, a welcome message, account verification and password recovery. Message frequency varies. Message and data rates may apply.

Reply STOP to stop texts, or HELP for our contact information. You may receive an opt-out confirmation. To restart, sign in and confirm your consent in Settings, then text START from your account’s number and check status. Texts remain stopped until we confirm the restart. You can also contact hello@birthdaysprinkles.app.

Availability and privacy

Delivery is not guaranteed. Carriers are not liable for delayed or undelivered messages. The service may change or end, and misuse may lead to suspension. You can delete your account in Settings. See our Privacy notice for information about your data.