Happiest Baby (SNOO) vs Hatch Grow app

Side-by-side specs from each maker.

Only the differences are shown.

	The Happiest Baby, Inc. Happiest Baby, makers of SNOO	Hatch Baby, Inc. Hatch Grow
Type	Monitor or device app	Monitor or device app
Developer	The Happiest Baby, Inc.	Hatch Baby, Inc.
Platforms	iOS, iPadOS, watchOS, visionOS	iOS
App price (US store)	Free	Free
In-app plans (as listed)	Premium $19.99/mo; $99.99 for 6 months; $149.99/yr	Not listed
Last updated	Not listed	2025-07-30
Age rating	4+	13+
Data linked to you (label)	Email address, name, photos or videos, user ID, device ID, product interaction, sensitive info, other diagnostic data	Contact Info (name, email), Identifiers (user ID)
What it logs or does	SNOO and SNOObie control, SNOO log and alerts, remote control, activity tracking (sleep, feeds, diapers, growth, pumping), timeline of articles, SNOObie nightlight and sound routines	feeding, diaper, sleep, pumping and growth logs, WHO percentile comparison, daily summary, photos, partner and caregiver sharing, optional Bluetooth weight and feeding measurement with Hatch Grow or Smart Changing Pad
Caregiver sync	Not listed	Yes
Needs	SNOO Smart Sleeper or SNOObie; Wi-Fi; NFC-enabled device for SNOObie	Automatic weighing needs the Hatch Baby Grow or Smart Changing Pad
Developer's claim	"help the whole family get 1-2+ hours more sleep a night (developer's words about SNOO)" (developer's words; no published validation found)	Not listed

Companion app for SNOO and SNOObie, with logs, remote control and a Premium tier.

Tracking app for Hatch's Grow scale and Smart Changing Pad, with manual logs for feeds, diapers, sleep and growth.