Made for leagues. Built for coaches. Protects kids. Empowers parents.
Tired of planning drills and figuring out how to teach a 6-to-12-year-old to keep their feet shoulder-width apart? We built this so you can spend more time on the field and less on the clipboard.
One family. One kitchen table. One real problem.
This was built by a family who loves baseball and softball — and wanted a faster way to get from "I have practice in 90 minutes" to "I have a real plan." No more searching YouTube for drill ideas. No more legal-pad triage Sunday nights. Just open the app, pick the age group, pick what you want to work on, and go.
We sponsor a handful of youth softball and baseball teams across Lakewood Ranch and the surrounding area, 6U through 10U plus a travel ball team. We do that because in a season where every parent is fighting screen time, youth sports is one of the few things that still gets kids outside, off the couch, and onto a field with their friends. That's worth investing in.
My wife Stef coaches. I'd love to coach myself, but I travel too much for work, so the deal in our house is: she coaches, I sponsor, and we both show up. She'd come home from practice with new ideas she wanted to try and no good way to plan them. Legal pads. Half-working GameChanger workarounds. Lineups drawn out on dinner napkins.
"You should just build the thing you wish existed."— Stef, after I showed her a working sample. March 2026.
So I did. Then we kept building it together. Stef shaped the practice planner from the coach's seat. Our three kids — all ballplayers themselves — contributed ideas we'd never have thought of from the kitchen-table side; the walkup songs and Game Mode dugout DJ are theirs, not mine. We figured out what parents actually needed by being parents on the same field. By April, both Miss Manatee Softball and Lakewood Ranch Little League were asking about deploying it across all their teams.
This is what happens when the people building the app are also the people in the lineup.
— The family behind Diamond Coach
The app, from the dugout.
What you actually do on a Tuesday night — open the app, generate a plan, share it, run practice. No clipboards, no laptop, no printer.
90 seconds to a full plan.
Pick age group, pick a focus, hit generate. Done before you park.
Every kid, and what they can actually do.
Positions, batting hand, and where each player is at — so the lineup has something to work from besides your memory.
Rotation that actually validates.
Infield / outfield / bench balanced every inning. League rules baked in.
Don't type the league's schedule out.
Import it from a photo of the sheet. Parents subscribe once and their calendar keeps itself right.
You signed up to coach. Not to project-manage.
Four audiences. One app. Each one taken seriously.
For coaches
The volunteers who said yes when the league needed someone. Moms, dads, grandparents, first-year coaches. We built the app you wished GameChanger was.
- AI practice planner (90 seconds, age-appropriate)
- Import the league's schedule from a photo of the sheet
- Assistants and parents stay synced automatically
- QR invites for new helpers and parents
- Field rotation eligibility math
- Announcements that reach everyone in the app and by email
- Walkup songs · Game Mode dugout DJ
For parents
Parents get their own view, free, for every child they have on any team. One place for what time to be there, which field, what to bring — instead of scrolling back through a group chat at 5:25 on a Tuesday.
- Every game and practice, across all your children's teams
- Rain-outs and time changes reach you in the app and by email
- Season history that follows the kid, not the team
- Add the schedule to your phone's calendar once — it keeps itself current
- You control what is shared. The coach's private notes are never shown to you, and never will be
- No ads, ever. Delete your account whenever you like
For kids
Their data, their privacy, their improvement. Stat history that doesn't disappear when they switch teams or coaches. No selling data, no ads, no surveillance dressed up as analytics.
- COPPA-aware data flows
- Parent-controlled visibility
- Delete your account and your child's record, from the app, yourself
- Stat history travels with the kid
- A coach's private notes on a child are never shown to the parent — enforced in the database, not by a setting someone could flip
For leagues
What other apps treat as an afterthought. A league can create its teams and hand each one to a coach — and if that coach walks away in June, the league reassigns the team without losing a single roster, schedule or stat.
- Leagues for the Lakewood Ranch and Bradenton area are already set up
- Create a team and invite the coach to it
- A team the league creates is never billed to the coach
- Reassign a team when a coach steps down — the data stays put
- See every team and coach in your league in one place
Scan, don't import.
Most parents have never opened a CSV file in their life. Most volunteer coaches haven't either. Diamond Coach lets coaches hand off lineups, rosters and team invites by having someone scan a QR code with their phone.
No email attachments. No exports to download folders. No "wait, is that the right file?" texts at 5:25 PM on a Tuesday.
Yes, GameChanger CSV and PDF still import — for the leagues that already have years of data. But for new teams, just scan.
One payment, once a year. No seat fees. No ads.
Diamond Coach is a one-off payment, not a subscription. There is no card kept on file, nothing renews itself, and nothing is billed to you again unless you decide to buy another year. We email you a month before it runs out so the date never takes you by surprise.
- One team
- Roster, schedule, lineups, practice plans
- Full drill library with diagrams
- QR invites and lineup sharing
- GameChanger CSV import
- Team chat and announcements
- Parent portal for your families
- 5 AI calls to try the AI features
- Up to 2 teams
- 2 more coaches and 2 volunteers, each with their own sign-in
- Season-to-season carry-over — next spring starts from this year's roster
- Playbook photos — snap the drill diagram, it stays with the plan
- Unlimited parents, always free
- Everything in Free
- 5 AI calls included
- Coaching a third team? Add a slot
- AI pack — $9.99 for 75 calls
- Calls do not reset monthly and do not expire
- The AI pool is shared by your whole staff
- A team your league creates for you never costs you a slot
- A record that belongs to the family, not the team
- Stats that follow the kid between teams and leagues
- Every season in one place, year after year
- Parents keep control of what is shared
Parents never pay to use the app. Being invited to your child's team — schedule, announcements, chat, and their season history — is free and always will be. The Family Record above is an optional extra for families who want the record to outlive the team.
Running a league? Leagues can create teams and hand them to coaches, and a team the league creates is not billed to the coach — so putting your league on Diamond Coach does not put a bill in front of your volunteers. League pricing is still being worked out, and we would rather talk to you first than guess at it. Tell us about your league →
More time on the field. Less time on the clipboard.
You do not need an invitation any more — open the app and start free, today. Use this if you run a league and want your teams set up, if you want telling when the Family Record is ready, or if something is broken and you would rather have a person than a help page.