Willow
The Willow lists 9 data types linked to you on its App Store label, per Willow Innovations, Inc.. Companion app for Willow wearable pumps. It controls sessions, logs output and tracks stored milk.
- FreePrice
- iOS, watchOSPlatforms
How the Willow stacks up
Against the 6 pumping apps we track. The shaded band is where the middle half of them fall; the dot is this one.
Above the 6 most pumping apps list.
What sets the Willow apart
Measured against the 6 pumping apps we compare, from each maker's published specs.
Next to its closest matches
- Hong Kong Lute Technology Co., Limited MomcozyNext to it, the Willow is 3 more data types.
- Lansinoh Baby AppNext to it, the Willow is 8 more data types.
Free and paid
| Download | Free |
|---|---|
| Needs a device | Pump control needs a Willow Go, Sync, 360 or 3.0 pump; Wave pumps get manual ent |
App Store privacy label
As the developer lists it in the App Store. The developer fills in this label.
| Data used to track you | Location, Contact Info, Identifiers, Usage Data, Sensitive Info, Diagnostics |
|---|---|
| Data linked to you | Health & Fitness, Purchases, Financial Info, Location, Contact Info, Identifiers, Usage Data, Sensitive Info, Diagnostics (9) |
Listed features
- Controls Willow pumps from phone or Apple Watch
- Session history and output trends
Worth checking
- Most features need a Willow pump
- Privacy label lists several data types under tracking
Where to buy the Willow
Offers and terms change. Check the provider's site before signing up.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
Full specs
| Willow Innovations, Inc. Willow | |
|---|---|
| Type | Pumping app |
| Developer | Willow Innovations, Inc. |
| Platforms | iOS, watchOS |
| App price (US store) | Free |
| Age rating | 13+ |
| Data used to track you (label) | Location, Contact Info, Identifiers, Usage Data, Sensitive Info, Diagnostics |
| Data linked to you (label) | Health & Fitness, Purchases, Financial Info, Location, Contact Info, Identifiers, Usage Data, Sensitive Info, Diagnostics |
| What it logs or does | pump session start/stop/adjust, custom timers and reminders, session history and output tracking, milk bag inventory, articles and videos, booking with lactation consultants |
| Needs | Pump control needs a Willow Go, Sync, 360 or 3.0 pump; Wave pumps get manual ent |
Compare the Willow with
How each closest rival differs from the Willow, from the makers' specs.
- ElviePump with ElvieCompare side by side
- Hong Kong Lute Technology Co., LimitedMomcozy6 data types linked
- 3 fewer data types
- LansinohBaby App1 data types linked
- 8 fewer data types
- PumpablesPumpablesCompare side by side
Willow: questions answered
From Willow Innovations, Inc.'s published specs, last checked 2026-11-02.
How much does Willow cost?
On the US App Store: Free. Prices and plans can change after you sign up.
What data does Willow collect?
The App Store label lists data used to track you: Location, Contact Info, Identifiers, Usage Data, Sensitive Info, Diagnostics. Data linked to you: Health & Fitness, Purchases, Financial Info, Location, Contact Info, Identifiers, Usage Data, Sensitive Info, Diagnostics. HIPAA doesn't cover baby tracker apps (HHS). The FTC Health Breach Notification Rule applies to apps that hold health data. The App Store privacy label is self-reported by the developer, and subscription prices can change after you sign up.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
Where these specs come from
Last checked 2026-11-02. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.