Rostara Rostara
Free team balancer & group manager · any sport

Balanced teams for your pickup game. No spreadsheets.

Rostara is the home base for your weekly game. Rate your players, split them into even teams, sort out who's coming, handle the money, and run tournaments. All in one place.

Free for the essentials · Works in any browser, on phone or laptop

Got an invite? Open the link your organizer sent you.

Rostara's team balancer showing two five-a-side teams rated 6.4 and 6.5, with a balance score of Excellent.
Free for the essentials, no ads Ratings stay private Works on any device Built for any sport The app speaks 12 languages
Skill ratings & team balancing

No more lopsided teams

Your group rates each other on the skills that matter, and it stays private, so nobody sees who gave what. At game time, Rostara splits everyone into even sides in one tap and tells you how close the match really is.

  • One tap to auto-balance, or drag players between sides yourself
  • A balance score so you know the game will actually be competitive
  • Ratings averaged across the group — no single person decides
How the team balancer works →
A player's rating card in Rostara, broken down into Pace, Shooting, Passing, Defending and Goal Keeping.
Events & RSVPs

Know who's actually coming

Post a game, pick when RSVPs open, and watch the list fill up. Waitlists, guest spots, and calendar links are built in, so you're done counting heads in the group chat.

  • Going, maybe, and not going — with a live count
  • Waitlists take over automatically when the game fills up
  • Add to Google, Outlook, or Apple Calendar in one tap
Guide: games, RSVPs and waitlists →
An upcoming Rostara game showing the date, venue, ten people going, and the published teams.
Shared expenses

Sort out the money, no awkwardness

Keep the group pot and everyone's balance in one place. Members log what they paid, an admin signs it off, and you close out the season with numbers everyone trusts.

  • Every pitch fee, ref payment and member due in one ledger
  • Payments wait on admin approval before they count
  • Close a period and carry the pot forward to the next season

The shared ledger is part of Rostara Pro

Guide: splitting costs and tracking who paid →
Rostara's bookkeeping screen listing pot contributions, a pitch rental, a ref payment and a pending member payment.
Tournaments

Run a proper competition

Set up a round-robin, a knockout, or a league followed by a knockout. Rostara draws the fixtures, and the table updates itself as you enter each result.

  • Fixtures generated for you, round by round
  • Standings with points, goal difference and tiebreaks
  • Everyone sees the current match and what's next

Group tournaments are part of Rostara Pro

Guide: running a tournament →
Summer Cup standings with four teams ranked by points and goal difference, above the current and next fixtures.

Plus everything else your group needs

One app instead of a group chat, a poll, a payment app, and a bracket maker.

12 languages

Arabic, German, English, Spanish, Persian, French, Indonesian, Italian, Japanese, Korean, Portuguese and Turkish — or just follow your phone's setting.

Notices board

Post announcements with reactions so the important stuff doesn't scroll away.

Smart alerts

Get a nudge when a game goes live, a waitlist spot opens up for you, teams are published or your payment is approved. Turn off any you don't want.

Built for any sport

Start from a preset for soccer, futsal, basketball, volleyball, handball, ice hockey, padel or tennis, or build your own skill list with Rostara Pro.

Step-by-step guides

Every feature explained with screenshots and short recordings of the real app.

See all guides →

Questions people ask first

Is it really free?

The essentials are. Creating a group, running RSVPs with waitlists, rating players, balancing teams and posting notices are free, with no ads. Rostara Pro is an optional subscription for groups that want more: the shared ledger, group tournaments, warnings and suspensions, group history, your own skill list and weights, and letting every member rate players, suggest teams and vote on them. Rostara never handles your money — the ledger is a record of what your group agreed, not a payment processor.

Can everyone see how I rated them?

No. Individual ratings are private. Everyone sees the group average for a player, but never who gave which score — that's what keeps people honest and keeps the teams fair.

Does everyone in my group need an account?

No. You can add players as names only and still rate them, put them on teams and count them in RSVPs. They can claim their spot with an account later if they want to RSVP themselves.

Which sports does it work for?

Any sport where you split into sides. Soccer, futsal, basketball, volleyball, handball, ice hockey, padel and tennis come with ready-made skill presets, any other sport starts from a general set, and with Rostara Pro you can write your own list of skills.

What languages does Rostara support?

Twelve: Arabic, German, English, Spanish, Persian, French, Indonesian, Italian, Japanese, Korean, Portuguese and Turkish. Rostara follows your phone's language by default, and you can pick a different one at any time without touching your device settings.

Do I have to install anything?

No — Rostara runs in your browser on any device. You can also add it to your phone's home screen so it opens like a normal app.

How do people join my group?

Share your invite link. Players open it, sign up with Google or email, and join your group in a couple of taps.

Get the group together

Make a group, share the invite link, and you'll be running your next game in minutes.

Start your group