Fair playing time.
Every match.

FairSub calculates substitutions in real time. Every player gets fair time on the pitch.

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Built for grassroots youth soccer.

Countdown to every sub.

FairSub is built for the coach with 12 kids on the roster, halftime in two minutes, and no time to do mental math.

Take a closer look.

Set your gameplan
Pick your squad, set the match length, choose a rotation style: short stints, long stints or only at period pauses. FairSub builds the plan.
Lineup builder
Set a starting lineup for every period. Drag players between field and bench. Any formation from 3-a-side to 11-a-side.
Real-time substitutions
FairSub calculates every substitution needed for equal time. What happens on the pitch is reflected in the app, as it happens.
Position-aware substitutions
Set each player's position, and the engine prioritises like-for-like swaps. Your gameplan holds through every change.
Squad selection signals
A gentle nudge in the squad picker. Every player gets their fair share of matches, not just fair time when they play.
Monthly Report
Every player's time on the pitch and match rate, in one shareable link. Send it to club and parents.
Designed for the sideline
A whistle, a vibration, a glance. FairSub tells you when to sub without pulling you away from the game.

Plans change.
FairSub adapts.

Eyes on the pitch.
Not on your phone.

A glance is all it takes.

Free to start. Fair to pay.

Free

$0

Forever free. No ads.

  • Smart substitutions
  • Unlimited matches
  • Full match history
  • Lineup builder
  • Background notifications
  • No account required

Team

Coming soon

One team, multiple coaches, shared data.

  • Everything in Free and Coach
  • Up to 5 coaches per team
  • Synced across devices
  • Invite co-coaches with a code
  • Up to 5 teams

Every kid on your team
deserves to play.

High five to that.

Get on App Store

Questions.

Who is FairSub for?
Volunteer and grassroots coaches of youth soccer teams, ages 5 to 12. From 3-a-side to 11-a-side. The coach with 12 kids on the roster who wants every player to get fair time on the pitch, without mental math on the sideline.
How does FairSub calculate substitutions?
FairSub simulates the match forward and calculates every substitution needed for fair time. What happens on the pitch is reflected in the app, as it happens. If you miss a sub or a player gets injured, the plan recalculates automatically. Why timers fail
Why does equal playing time matter?
Every kid who steps onto the pitch gets a chance to touch the ball, make decisions and feel part of the team. That's where confidence grows. That's where the love for the game is born. Why equal playtime matters
Why doesn't FairSub track goals?
FairSub counts minutes, not goals. At ages 5–12, development happens through playing time. Every touch, every decision, every moment on the pitch.
What is the Monthly Report?
A shareable monthly summary of your team's matches. Every player's time on the pitch and how often they were selected. Generate it in the app, share a link with club and parents. Protected by a team-name login so children's data stays private. Requires the Coach upgrade. How coaches use it
Is FairSub really free?
Yes. The full substitution engine, lineup builder and match history are free. No trial, no limits. The optional Coach upgrade (USD 14.99 per year) adds position-aware substitutions, Live Activity, halftime rotation and the Monthly Report. The free version is not a demo.
Do I need an account?
No. FairSub works without an account. Your data stays on your device. No servers, no sign-up, no password.
What about my players' privacy?
FairSub stores match and gameplay data, not child data. Only first names and a team name. Everything stays on your device. Reports are protected by a team-name login. We do not collect data we do not need, and we treat anything about children with extra care. GDPR and national laws set a high bar around minors' data, for good reason. A focused coaching app does not need photos, parent contacts or free-text family notes to do its job. Our privacy stance
Does the app work offline?
Yes. Everything is stored on your device. No internet connection needed, including during live matches.
Fair playing time. Every match. Download