Free SMS for Big Groups.
Zero per-text bills.
Stop paying cents per SMS. ZilchSMS gives your community, club, team, or neighbors free group text messaging without monthly software subscriptions or per-message fees.
Free Group Texting, Built for Large Groups
Everything you need to keep large groups connected without per-message vendor fees.
Dedicated Group Handle
Your group gets its own unique address (e.g. neighbors@zilchsms.com).
Members can text it from their phones to join the group or receive announcements.
- Instant Joining: Anyone texts your group handle to request access.
- Admin Notifications: Get notified whenever a new member joins.
- No App Required: Members receive standard SMS text messages on any phone.
Opt-In Confirmation & Safety
Keep your group spam-free and fully compliant. Members confirm with a quick text to stay opted-in.
- Double Opt-In: New members receive an invite and reply YES to confirm.
- Online Dashboard Control: See all subscribers, add, or remove anyone with one click.
- Account Security: 3-attempt lockout protection with SMS verification unlock.
Two Group Models for Every Community
Select the group model that fits your organization. You can change it anytime in your dashboard.
1. Open Group
Everyone can participate. Any confirmed member who texts your group email has their text relayed to every other subscriber.
- Peer-to-Peer Relay: Members text the group email and all members receive it as SMS.
- No App Required: Works entirely over native SMS on any phone.
- Admin Controls: Admin can remove members or pause the group at any time.
2. Broadcast Group
One-way announcement channel with built-in moderation. Only the admin can broadcast directly. If any member sends in a message, it routes to the admin for approval first.
- Direct Announcements: Admin sends blasts to all subscribers with zero noise.
- Reply "1" to Approve: When a member texts in, admin gets alerted and can reply 1 to blast it out to the entire group.
- Edit Before Sending: Admin can modify or rewrite member messages in the dashboard before broadcasting.