SoStack

SoStack

About this app

SoStack is a communication and coordination platform built for real-world groups. Create private group chats, plan together with shared calendars, and follow verified public groups to stay up to date on what’s happening near you.

What you can do with SoStack
Private group messaging: Create 1:1 and group chats for friends, teams, families, and communities.
Shared calendars + events: Create events in group calendars, add events to your own calendar view, and keep plans in one place.
RSVP and planning: Mark events as interested/going and coordinate details with your group.

Discover and follow public groups (SoStack Plus): Find local businesses, organizations, and communities, follow them, and see upcoming events and updates.

Invite by phone: Invite people to private groups via SMS links, and optionally match contacts to existing SoStack users (with permission).
Location-based discovery (optional): Use a city or current location to filter nearby results.

Built with safety and control
Account deletion in-app: Delete your account from Settings.
Privacy-first by design: Messages are protected by access controls, and you control permissions like contacts and location in your device settings.