Coach the whole game from your phone
The native app for iPhone, built for youth baseball & softball coaches. Build rule-compliant lineups, track pitch counts, and keep playing time fair, right from the dugout.
Free to download. Works hand-in-hand with the web app you already use.
4.8 / 5
17 ratings on the App Store
From the App Store
What coaches are saying
Assistant Coach in my Pocket
I've been using this to coach my daughter's softball team and it has saved me so much grief with the local league's supplemental rules, especially with the minimum infield innings requirement. The drag and drop makes it easy and I appreciate how quickly they respond to questions.
Perfect for Little League
Great app and also responsive developer who has added a bunch of features for my team that have been a huge help. It's been eye opening for the parents to see fairness stats as well. My favorite part is the GameChanger imports!
Best app award
Best app for baseball lineups hands down. Also is great for team coordination, stats summaries. Love the app and online version.
Incredibly Valuable Tool
Who's on Second might be the most comprehensive tool for youth baseball coaches. The depth of the rule sets and configurations saves so much time throughout the week. The developer is super responsive. Love this software.
Best app for coaches!
This app has been a huge time-saver for me as a baseball coach. Before using it, I was trying to manage rosters, batting orders, defensive rotations, innings played, and lineup changes manually in Excel, and it was a constant headache. …
Responsive Developer!
I've been using this on my phone and it has changed how I manage the dugout. I volunteer for my LL so I have a lot going on. Not having to manage the pitch counts the night before has been awesome. …
Wish I'd had this tool sooner!
This app makes tracking my players easy! I don't coach to crunch numbers, and now I don't have to!
Everything you need at the field
Built for one-handed use in the dugout: fast, focused, and synced with your account.
Drag-and-drop lineups
Build your batting order and defensive rotations right on the diamond. Auto-generate a rule-compliant lineup in two taps, then tweak it with a drag.
Your league’s rules, built in
Minimum play, bench limits, mandatory infield innings. Toggle on the rules your league enforces and the builder flags violations in real time.
Pitch counts on your phone
Log pitches from the dugout and rest days calculate themselves. See who’s eligible, who’s resting, and who’s near their limit, even across teams.
Season-long fairness
Every inning and position is tracked so you can keep playing time balanced. Now you have the data to show any parent who asks.
Roster in your pocket
Jersey numbers, positions, handedness, and notes for every player, ready when you need them, synced with the web app you already use.
Import your schedule
Share your GameChanger schedule straight into the app and your season is ready to go. No re-typing game dates by hand.
Bring it to the dugout
Download Who's on Second free and manage your team from your pocket: lineups, pitch counts, and fairness, all in one place.
Prefer a bigger screen? Use the web app