Coplot

Coplot is a shared calendar for any group of people who plan together — couples, families, roommates, friend groups, small teams. Think of it like a group chat, but for your calendar.

The signature feature is conflict-aware scheduling: when you go to add an event, Coplot shows you what's already on the day before you commit. If you try to book over an existing event from anyone else in the calendar, you get a heads-up — and they get a notification when you go ahead anyway. No more "wait, weren't you taking the kids to soccer?" texts at 4pm.

What's inside

• Day, Week, and Month views — readable, fast, and built for the way real groups actually plan
• Tap any event to see who added it, when, where, and any notes — read-only if it isn't yours
• Conflict alerts — when someone books over your time, you'll know
• Reminders — choose 5 min, 15 min, 30 min, 1 hour, or 1 day before; a "starting now" alert always fires too
• Color-coded events — 10 calm colors, no neon
• All-day events for birthdays, anniversaries, and travel days
• Recurring events — daily, weekly, monthly, yearly, until any date
• Event attendees — tag specific people on an event so only they get reminded
• Multiple calendars per account — one for your family, one for your roommates, one for your friend group, all in one app
• Invite codes — create a calendar, share a 6-character code, anyone you invite joins in seconds
• Real-time sync — events appear on every device within a second
• Local-only mode — sign-in is opt-in. Don't want a sync account? Don't make one.
• Light + Dark — full first-class dark mode
• iOS-native — built with SwiftUI for the way iPhones are supposed to feel

Designed for restraint

Coplot doesn't bury you in features you'll never use. There are no AI assistants, no calendar grids that pretend to be spreadsheets, no event marketplaces, no LinkedIn integration. Just a clear shared calendar, an invite code, and a notification when something doesn't fit.

Privacy by default

We collect the minimum we need to make Coplot work: your email (for sign-in), your display name (so the rest of the group sees who added what), and the events you choose to put in. We don't sell data. We don't run ads. We don't run analytics SDKs. We don't read your real-world location — the "location" field is just text you type. Sign-in is via a one-time code (no passwords). Want to use Coplot fully offline? Skip the sign-in entirely.

Free during beta

Coplot is currently free for everyone. Future paid features may exist; the calendar core will always be free.

Built for the people you actually share life with

Coplot was made because every other "shared calendar" we tried was either built for corporations (and looked it) or capped at exactly two people. Real groups — families, partners, housemates, friend circles — needed something simpler.