For baseball & softball coaches

Fair lineups.
Every inning.
Every kid.

Build your batting order, auto-fill defensive positions, and keep playing time fair — all before you reach the field. No spreadsheets. No ads.

Download on theApp Store See how it works

4.9 average rating iPhone & iPad One-time $4.99

Stack the Lineup Auto-Fill Positions screen showing inning-by-inning defensive assignments on an iPhone

Everything for game day

Set your lineup in minutes, not a spreadsheet

Stack the Lineup handles the math of fair play so you can focus on coaching. Plan it at the kitchen table, bring the PDF to the dugout.

Auto-Fill · Pro

Auto-fill positions for the whole game

Tap the bolt and the app fills every open defensive spot while checking each fair-play rule. Fill a single inning or innings 1 through 6 at once.

Already-assigned positions are never overwritten
Honors each player's position preferences
Balances infield, outfield, and bench time

Auto-Fill Positions popover offering to fill this inning or innings one through six on the Stack the Lineup Positions tab

Position preferences

Tell the app where each kid belongs

Tag every player by position: their strengths, where they're capable, an emergency-only spot, and positions they should never play. Auto-Fill follows your call.

Strength Prioritized first when filling spots
Capable Solid backup options
Emergency Used only as a last resort
Never Off the table, always

Players tab showing roster with position preference tags such as Strength, Capable, Emergency, and Never for each player

Fair-play warnings

See the whole game at a glance

The position summary shows every inning and every spot in one grid. Fair-play warnings flag missing infield innings, back-to-back bench, and overuse before the first pitch.

By Player, By Position, and Pitching views
Catcher-to-pitcher and rest-day checks
Green light when everyone meets fair play

Position Summary grid showing every defensive position by inning with a confirmation that all players meet fair play requirements

The whole coaching toolkit

PDF exports for the field

Export a clean batting order and defensive grid to print or share. Bring it to the dugout, no phone required.

Game history & season stats

Archive each game when it ends. Track innings played, bench time, and position spread across the whole season.

Batting order, drag to reorder

Tap Edit, then drag any player up or down. Your batting order carries over week to week so you start ahead.

GameChanger CSV import

Already have your roster in GameChanger? Import it in seconds instead of typing every name and number.

Multiple teams

Coaching more than one team? Switch between rosters and keep each season organized on its own.

No ads, no clutter

A native iOS app that does one thing well. No accounts to create, no ads between innings, no data to hand over.

Simple pricing

Free to start. $4.99 to unlock it all.

One-time purchase. No subscription, ever. Pay once and own Pro for good.

Free

A fully working single-team lineup builder.

Full roster & batting order
Inning-by-inning position grid
Fair-play warnings
Limited game history

PRO

Stack the Lineup Pro

$4.99 once

Unlock the full coaching toolkit.

Everything in Free, plus
Auto-Fill positions
Position preferences
Full game history & season stats
Multiple teams & full Coaches Guide PDF

Unlock Pro — $4.99

One-time purchase. No subscription.

From the dugout

Coaches got their evenings back

Real feedback from coaches who used to build lineups in a spreadsheet.

"I used to spend an hour the night before every game in a spreadsheet. Now it's five minutes and nobody's parents are texting me about playing time."

RMCoach Ryan M.
Little League, 9U

"The fair-play warnings are the whole thing for me. It catches when a kid would sit two innings in a row before I do. Worth way more than five bucks."

DLCoach Dana L.
Cal Ripken, 11U softball

"Imported my roster from GameChanger, set everyone's positions once, and now Auto-Fill does the heavy lifting. The PDF I bring to the field looks great."

TSCoach Tomás S.
Babe Ruth, 12U

Questions

Quick answers

How much does Stack the Lineup cost?

Stack the Lineup is free to download and use for a single team. Stack the Lineup Pro is a one-time $4.99 in-app purchase that unlocks Auto-Fill, position preferences, full game history, multiple teams, and the complete Coaches Guide PDF. There is no subscription.

Does it work for softball too?

Yes. Stack the Lineup works for youth baseball and softball. The positions, fair-play rules, and rotation logic apply to both, and it's used by coaches across Little League, Cal Ripken, Babe Ruth, JBO, travel, and rec leagues.

What is "fair play" and how does the app help?

Fair play means every player gets balanced time across positions and innings, instead of the same kids always sitting or always playing the infield. Stack the Lineup flags missing infield innings, back-to-back bench, catcher-to-pitcher violations, and overuse so you can fix them before the game.

Which devices does it run on?

Stack the Lineup is a native app for iPhone and iPad. It is not currently available on Android or the web.

See all FAQs

Fair lineups.Every inning.Every kid.