Willow®

Willow Innovations, Inc.

About this app

More than an app. A support system.

Control your Willow pumps, personalize your pumping experience, and track your session history as well as your stash of Willow Milk Bags stored in your fridge and freezer. Plus, get access to expert guidance through articles, videos, live sessions, and new AI-powered chat, all designed to support you across pumping, feeding, and postpartum care.

Who can use the Willow app?
Our app is compatible with Willow Go, Willow Sync, Willow 360, and Willow 3.0. Plus, Willow Wave users can add their manual pump sessions to their session history. Our expert-led content and resources are available to everyone!

Operate your pumps with a tap.
Start and stop your session, switch between modes, adjust suction levels, and view your pumping duration, all from your phone. Save your Pumping Preferences, including suction levels and custom timer settings, and set reminders so every session works just the way you like.


Manage your session from your Apple Watch. Willow 360 and Willow 3.0 are the only pumps with full Apple Watch control.

Track your sessions. Understand your output.
Follow your milk output, session durations, add manual pump sessions and more for a complete picture of your pumping history. Spot trends, optimize your routine, and pump with confidence. With SmartStash, you can quickly and easily scan Willow Milk Bags into your digital stash to manage your inventory in the app.

Get your questions answered.
Access a comprehensive library of expert-backed articles and videos on all things pumping, feeding, and postpartum care, from establishing supply and building schedules to combo-feeding and more. The Willow app also includes our conversational AI, specially dedicated to women’s health, designed by moms for moms. With both expert resources and AI-powered support, you always have trusted guidance at your fingertips.

Book expert sessions for personalized guidance.
Connect with lactation consultants, pelvic floor therapists, mental health professionals, Willow sizing experts, and more. Because we know it takes a village.

Visit onewillow.com to learn more about the app and explore accessories, content, and more.

Ratings and reviews

Overall very useful app for keeping track of ongoing pump sessions and knowing how much battery is left on each pump. When I use the reusable containers, it's accurate within 0.5 oz usually. However, the history tab rarely updates correctly, and I've stopped using that feature. There is an option to manually enter the session into the history, but it's too much of a hassle

This app is almost worthless. One pump will almost never connect, the other takes several minutes to connect and disconnects frequently, especially if I look at anything else on my phone. Since it's usually not connected or trying to connect, I can't really use it to operate the pumps. It doesn't even keep accurate time, despite an update the other day that supposedly fixed that problem but has not.

Right now, the app is really only useful for starting, stopping, and adjusting the pumps. It is supposed to also allow for tracking but I'd say 3 out of 4 times my pumps get dropped so I cannot see all my pumps nor add volumes. A feature I'd also like to see is more comprehensive tracking logs and trends. Occasionally, I'd like to see more than one day's data at a time, and see overall/lifetime pump totals.

What’s new

Introducing SmartStash in the Willow app. Quickly and easily scan Willow Milk Bags into your digital stash. Manage your inventory of stored milk in your fridge, freezer and deep freezer.