Apps are overrated, spreadsheets are where it's at

lol everyone's talking about OurFamilyWizard and CoParently but honestly I just use a shared Google Sheet with my ex. We both have edit access, I color code who has the kids each day in different months, and we add notes about schedule changes.

Free, simple, no learning curve. We tried an app once and it felt like overkill for our situation. Might not work for high-conflict co-parenting but for us it's perfect.