The problems we solve
Scattered communication
School emails in one inbox, family WhatsApp in another, partner texts somewhere else. Important messages get lost in the noise. Plenum gives your family one private, dedicated space to talk.
Calendar chaos
Whose practice is on Thursday? Did anyone RSVP to the birthday party? Family calendars shouldn't require a spreadsheet. Plenum gives everyone a shared view of what's happening and when.
Forgotten tasks
"I thought you were picking them up." Shared responsibilities need shared visibility. Plenum todos let you assign, check off, and see who's handling what.
Where is everyone?
The kids left school 20 minutes ago. Are they at a friend's house? On the bus? Location sharing gives you peace of mind without surveillance — family members choose when to share.
Kids excluded from planning
Children aged 6+ are old enough to be part of family planning but too young for adult apps. Plenum gives them a safe, age-appropriate seat at the table with role-based permissions.
Too many apps
A calendar app, a chat app, a todo app, a location app. That's four apps where one should do. Plenum combines them into a single, purpose-built family app.
Your family, your way
Two parents, one parent, co-parenting across households, rainbow families, blended families, grandparents raising grandchildren — Plenum is built for every family structure, not just the traditional one.
How it works
Built for real family life
Create your family in Plenum, invite your partner and kids. Everyone gets their own account with age-appropriate permissions. Adults manage, kids participate.
Share a family calendar, create personal ones. Chat 1:1 or in groups. Make todo lists for groceries, chores, or weekend plans. Share your location when it makes sense.
Everything syncs with your existing calendar apps via iCal and CalDAV. No lock-in, no walled garden.
Subscription tiers
Free
1:1 family chat, basic todos, and a shared family calendar. Everything you need to get started, no credit card required.
Casual
Group chats, recurring calendar events, and location sharing. For families who want a bit more coordination.
Full
Message reactions, image sharing, and external calendar sync. The complete family toolkit.