String Cup: Family Messenger

String Cup is a private family messenger and group chat made just for your family—from grandparents to grade-schoolers.

No phone numbers. No email addresses. No strangers. Your family gets a private code, each member chooses a profile and a simple 4-digit PIN, and everyone is connected on your family’s own private line.

WHY FAMILIES LOVE STRING CUP

🏠 ONE FAMILY CHAT
Keep everyone together in one welcoming family group chat.

💬 PRIVATE 1-ON-1 MESSAGES
Family members can communicate directly while staying inside the family.

📷 PHOTO SHARING
Capture special moments and share photos with the people who care most.

🔔 GENTLE NOTIFICATIONS
Know when someone in your family reaches out.

⏳ FRESH CONVERSATIONS
Messages disappear from everyday chat after 48 hours, keeping conversations manageable.

👨‍👩‍👧 PARENT TOOLS
Parents can access the family archive, review safety reports, and manage family members.

🛡️ FAMILY SAFETY
Report messages and block family members when needed. Parents can review reports and take action.

🧒 PRIVATE BY DESIGN
No phone number is required, and members cannot contact strangers or anyone outside their family.

SIMPLE FOR EVERY GENERATION

If you can tap a picture, you can use String Cup. Kids sign in with a 4-digit PIN, and grandparents don’t need to learn complicated account settings.

ONE PLAN FOR THE WHOLE FAMILY

One annual subscription provides premium access for the whole family across supported