These three tools solve different halves of the same week. Here is the honest split, so you do not pay for the wrong one.
Cozi is a well-known shared family calendar with lists and meal planning, at $39 a year for the ad-free version. It does not track school assignments or youth sports brackets, so if your Saturdays revolve around game times and standings you will still be checking other apps.
TeamSnap is the category leader for youth sports management — 30 million users and 19,000 sports organizations — and it is what many coaches already run. It is built around the team, not your household, so school due dates and your other kid's activities live somewhere else.
SynclyOne exists for the parent holding school, sports, tournaments and family plans in their head at once. One shared calendar, per-kid hubs, separate threads per team and classroom, and tournament brackets with scores — plus Google Calendar sync so the other adults see it without installing anything. Free to start, $4.99/month for unlimited teams and classrooms.
It is not a league registration or payment platform, and it is not a school information system. If a coach needs to collect fees and manage rosters for an entire organization, TeamSnap is the better fit.
Cozi covers the family calendar. TeamSnap covers the team. SynclyOne is for parents who need both.
| SynclyOne | Cozi | TeamSnap | |
|---|---|---|---|
| Entry price | Free, no credit card | No free plan ($39/year) | Free to start |
| Shared family calendar | Yes | Yes | Team schedule only |
| School assignments & class updates | Yes | No | No |
| Youth sports teams & tournaments | Yes, brackets and standings | No | Yes |
| Per-team and per-classroom threads | Yes | Limited | Yes |
| Paid plan | $4.99/month, cancel anytime | $39/year | Paid plans per team |
Competitor pricing as publicly listed at the time of writing; check their sites for current pricing.