Your first calendar for your friends

Make plans, invite friends, and find things happening.

Download for free

★ 5.0 from 21 reviews

How it works

Everything in one social calendar.

ZynkUp brings your plans, chat, and people into one place. Post a plan, let friends join, and see everything that's happening in one shared calendar — from the cabin trip and the birthday to quiz night and training. No more juggling five different group chats.

Event detail for a Sognsvann run — Event detail

Chat

Chat where the plan is.

Message directly, create group chats, or coordinate in the event chat — you don't need another app.

Groups

Groups for everything.

Bring together the run club, your flatmates, or the book club. New events show up right in your calendar.

Use ZynkUp for

One calendar, many ways to use it.

Explore what you can do with ZynkUp — from a shared calendar to birthdays and events.

Social calendar

Plans, friends, and chat in one place.

Learn more → Shared calendar

Shared calendar

See your plans and theirs side by side.

Learn more → Friends

Friends

Invite the right friends faster, and keep the chat around the plan.

Learn more → Events

Plan events

Invite friends, collect responses, and keep the chat around the plan.

Learn more → Groups

Groups

Plans, invites, and chat gathered for every group.

Learn more → Birthday

Plan a birthday

Send invites, collect responses, and keep the birthday in one place.

Learn more → Discover

Discover events

See what's happening nearby, or what friends are planning.

Learn more → For organizers

For organizers

Publish events and build an audience that shows up.

Learn more →

Popular guides Plan buddy week → The team's calendar → Folk high school year →

Frequently asked questions

What is a social calendar?

A social calendar is a shared calendar built for making plans with friends. Instead of coordinating in the group chat, you post a plan, let people join, and everything lands in one place — with its own chat for every plan.

Is ZynkUp free?

Yes. ZynkUp is completely free on iOS and Android.

How do I make a shared calendar with friends?

Download ZynkUp, create a group for your friends, and post a plan. Everyone in the group sees it, can join, and gets new events straight into their own shared calendar.

Do I need a separate app for chat?

No. The chat lives where the plan is — message directly, create group chats, or coordinate in the event chat without switching apps.

Can I import my calendar from Google or Apple?

Yes. You can import from Google Calendar and Apple Calendar, so all your existing events come into ZynkUp — you don't have to start fresh.

Your first social calendar.

Download and make your first plan.

★ 5.0 from 21 reviews