| Best fit | Private, low-effort iPhone tracking without sleep coaching. | Tracking plus predictive sleep timing and expert-designed sleep guidance. |
| Free tracking | All log types, timers, growth charts, exports and one month of history. | Everyday tracking, reports, multiple children, reminders and caregiver sync. |
| Sleep predictions | No predictions. Plumi shows the day rhythm without prescribing a schedule. | SweetSpot nap and bedtime predictions are included with Plus and Premium. |
| Partner and nanny sharing | Pro includes separate logins, per-child roles, entry attribution and end-to-end encryption. | 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. |
| Platforms | iPhone. | iPhone, iPad, Apple Watch and Android. |
| Paid plans in the US | $29.99/year or $5/month for Pro. | $68.99/year for Plus or $119.99/year for Premium in the US App Store. |