Social Networking Feb 28, 2026 · 3 min read

Meet Brierboard — Forecasting tournaments with your friends

Brierboard runs friendly forecasting tournaments.

Brierboard app icon

Social Networking

Brierboard

Forecasting tournaments with your friends.

Every feature, from the first launch.

No account, no login, no cloud. Everything runs on your device and works fully offline — nothing in this post is hidden behind a wall.

What Brierboard does

Brierboard runs friendly forecasting tournaments. You set a season (say, 6 weeks of NFL outcomes), invite friends, everyone enters probabilities for the season's slate, and Brierboard scores everyone with Brier on every resolution. The leaderboard updates as games resolve.

A look inside

Brierboard screenshot 1Brierboard screenshot 2Brierboard screenshot 3

Tap any screenshot to open the full-resolution version.

What's inside

  • Tournaments — Multi-question seasons.
  • Leaderboard — Brier scoring.

Why we built it

Outguess covers one-off questions; Brierboard is the season-long tournament container.

What makes it different

Tournament-format prediction club. Not gambling. Not Manifold (money). Friend-scale.

Who it's for

Built for anyone who values fast, private, on-device software with a calm, focused UX.

In one line: Forecasting tournaments with your friends.

Try it

See the Brierboard app page for the full feature list, the info table, and support links.


Use Brierboard, found a bug, or have a feature request? Comments are open below — anonymous is fine.

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