The group chat, the shared calendar, the album and the split — for the same people, in one private space. Not another app beside your group chat. The one that replaces it.
On iPhone now. Android is in testing.
No account needed.
Most apps make you start again every time. A new invite, a new chat, a new list of who paid. Atsuma keeps the group — so the next thing you do together starts with everyone already there. Private by default: people find you only by your exact username, and there is no feed full of people you don't know.
Group chats and DMs with replies, reactions and search — and a poll, a form, an event or a photo dropped straight into the conversation.
Everything the group has planned, in one view. Events you say yes to are added to the calendar on your phone, and the group can see when you are free (busy times only, never event details).
RSVPs, an itinerary, co-hosts, time suggestions and a checklist of who is bringing what — all on the event itself.
One album everyone adds to, plus a feed for the rest. It stays with the group afterwards, not lost in a chat that scrolled past.
Who paid, who owes and what it comes to — worked out as you go, in the currency you actually spent, with the receipt attached.
Polls for where to eat, forms for the things you need to ask everyone, checklists for the rest.
Every group has one. Send them a link and they can reply, see the plan, look at the photos and check what they owe, if anything — in a browser, with no account.
See what a guest sees →No account needed.
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