| Best fit | Free local care logging on iPhone, with Sleep Forecast and Apple Watch logging in Pro. | Tracking plus predictive sleep timing and expert-designed sleep guidance. |
| Free tracking | One baby, all log types, timers, WHO growth charts, CSV export and one month of history; no account needed. | Everyday tracking, reports, multiple children, reminders and caregiver sync. |
| Sleep predictions | Plumi Pro estimates nap and bedtime windows using age guidance and recent sleep logs. | SweetSpot nap and bedtime predictions are included with Plus and Premium. |
| Partner and nanny sharing | Pro includes separate accounts, selected children, parent or caregiver roles, entry names and end-to-end encrypted care records. | Free multi-device sync keeps caregivers on the same log. |
| Food reaction tracking | Dedicated food, severity, symptom and note fields with a shareable allergy list. | Includes solid-food logging. Its current public feature list does not name a dedicated reaction log. |
| Development content | Child’s World illustrated activities and a CDC-based milestone guide. | Plus adds Insights; Premium adds personalized sleep guidance and plans. |
| Platforms | iPhone and Apple Watch. | iPhone, iPad, Apple Watch and Android. |
| Paid plans in the US | $29.99/year or $4.99/month for Pro. | $68.99/year for Plus or $119.99/year for Premium in the US App Store. |