Get started Beta

Create your space.

Your own Sia T3, at your own address, with its own database — for your company, for yourself and your goals, or for planning a trip, a wedding, family life or a club. Set it up now and add your people afterwards.

What is it for?

🏢 A companyTasks, time, clients, approvals 👤 Just meYour goals, your day, your lists 🧳 An eventA trip, a wedding, a party 🏡 A familyCalendar, school, chores, health, goals, pets 🏠 A shared homeFlatmates: bills, chores, shopping ⚽ A club or teamFixtures, who's coming, fees 🤝 A groupCommunity, volunteers, a study group

Company name

Web address Lower-case letters, digits and hyphens. This is where everyone signs in.

Invite code While Sia T3 is in beta, a company's space needs an invite code. Don't have one? Request a code — we'll email it to you.

I agree to the Terms of use and the Privacy policy, and the Data processing agreement for my company.

Signing in to a space you already have? Sign in instead.

Next, you'll choose the password for your company's Admin account. Already have a space? Sign in

How it works

Choose your address
Your space lives at siat3.com/your-company. It's the one link everyone needs.
Set up the first account
For a company, the Admin account: it sets up your clients, categories and work days. For a trip, a family or a club, you: the organiser, with two-step sign-in.
Add your people
Your team — or your travel group, family (children get simple accounts of their own), flatmates or members. Everyone then signs in at your address.

What every space includes

The core and your plan: My Day, tasks with priority and start-by dates, plus the modules in your plan — for a company timesheets, chat, the Plan board, leave, expenses, invoicing and more; for a group the calendar, the event planner, lists, budget, shared costs, meals, chores and collections.
Your own data: a separate database, files and sign-ins, backed up every day, with two-step sign-in and an access log.
Apps and alerts: install it from Edge or Chrome and turn on notifications.

Request an invite code

Thank you — we have your request.

Create your space.

Choose your address

Set up the first account

Add your people

What every space includes