Comparison

Formula Pro Advanced WiFi vs Willow®

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Formula Pro Advanced WiFi

Prepare baby formula automatically from your smartphone. Customize and save bottle preferences, select from multiple temperature settings, and dispense precise amounts. Receive alerts when your baby's bottle is ready, saving you time and effort.

Highlights
  • Remote formula preparation
  • Customizable bottle settings
  • Multiple temperature options
  • Adjustable dispensing volume
  • Bottle ready alerts
Features
Read full description

Make a warm formula automatically from your phone with the Baby Brezza Formula Pro Advanced WiFi. Using this FREE app, you can customize and save 5 bottles, choose from 3 temperature settings, dispense between 2-10 oz and get alerts when your bottle is ready. Note: use of this app requires purchasing the Baby Brezza machine. Enjoy saving time making your baby’s bottles!

About

Willow®

Manage your Willow breast pump, track milk output, and access expert advice for pumping and postpartum care. Features include personalized pump control, session history, and AI-powered support.

Highlights
  • Control Willow pumps remotely
  • Track milk output and session history
  • Manage digital milk stash (SmartStash)
  • Access expert articles and videos
  • AI-powered women's health chat
  • Book expert consultations
Features
Read full description

More than a pump app. A support system. Control your pumps with a tap from your phone or your wrist, track your session history, and view your pumping trends and metrics. Scan and manage Willow SmartStash Bags in your fridge and freezer. Plus, get access to expert guidance from educational content, live services, and our specialized, AI-powered chat—a virtual support system designed to support you across pumping, feeding, and postpartum care. Who can use the Willow app? This app is compatible with all connected pumps, including Willow Go, Sync, 360, and 3.0. Willow Wave users can manually add manual pump sessions to their session history. And anyone wanting to manage their milk stash can keep track in our SmartStash inventory tracker. All of the pumping, feeding, maternal healthcare, parenting and baby development resources in the app are free for anyone to use! Operate your pumps with a tap. Start and stop your session, switch between modes (Go and Sync), adjust suction levels, and view your pumping duration, all from your phone or smart watch. Set up your own Pumping Preferences, including suction levels and custom timer settings, and set reminders so every session works just the way you like. Get the only app that lets you control your session from your Apple Watch. NEW! You can now control your Go pumps, in addition to Willow 360 and 3.0. 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.

Screenshots

Formula Pro Advanced WiFi4 screens
Willow®4 screens

Verdict

The call

The clearest difference is rating: Willow® at 4.5 against Formula Pro Advanced WiFi's 1.8. Willow® also leads on ratings volume (2.8K vs 167). Formula Pro Advanced WiFi's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Willow® holds the better App Store score, 4.5 against 1.8. That said, the two scores are not equally well evidenced: Willow® has 2.8K ratings behind it against 167, so its average is the more settled of the two. Written reviews split almost evenly too, at 14% and 13% positive.

UpkeepUpdate frequency

Formula Pro Advanced WiFi ships an update every 6 weeks, Willow® monthly. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
Formula Pro Advanced WiFi versus Willow®: the parameters behind the verdict, then further details
ParameterFormula Pro Advanced WiFiWillow®
PriceFreeFree
Rating1.8 (167 ratings)4.5 (2.8K ratings) — better
Positive reviews14.0% of reviews — better13.5% of reviews
Number of ratings1672.8K — better
Update frequencyEvery 6 weeksMonthly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod, Apple Watch — better
Requires iOS15.1 — better15.6
Further details — not scored
Size117 MB103 MB
Age rating4+12+
DeveloperBaby BrezzaWillow Innovations, Inc.

Customer experience

Formula Pro Advanced WiFi

All ratings164 ratings
Positive18.9%
Neutral4.3%
Negative76.8%
Written reviews100 reviews
Positive14.0%
Neutral7.0%
Negative79.0%

Willow®

All ratings2,756 ratings
Positive85.8%
Neutral4.7%
Negative9.4%
Written reviews289 reviews
Positive13.5%
Neutral15.6%
Negative70.9%

User reviews

Formula Pro Advanced WiFi

From 167 App Store ratings

What we love

  • 🚀 Quick bottle preparation from app
  • 👍 User-friendly interface design
  • ⚙️ Excellent hardware/machine quality
  • 🔧 Convenient preset bottle configurations
  • 📱 Barcode scanning for formula selection

Room to improve

  • 🐛 Persistent WiFi connectivity failures
  • 🐛 App freezes and crashes frequently
  • 🐛 False sensor readings (water level, filter status)
  • 🐛 App doesn't reflect machine state changes
  • 💸 Premium pricing for non-functional features

Willow®

From 2.8K App Store ratings

What we love

  • 🚀 Easy to use
  • 💡 Convenient for on-the-go pumping
  • 👍 Comfortable and effective pumps

Room to improve

  • 🐛 Buggy app with connectivity issues
  • 🔋 Poor battery life
  • 👎 Lacking key features like pump history and volume tracking

Bugs and requests

Formula Pro Advanced WiFi

Reported bugs

18 issues
  • WiFi connection fails during setup
  • App stuck on 'Name your bottle' screen
  • App stuck on 'Select your home WiFi' screen
  • Cannot proceed past formula selection
  • Spinning wheel/loading screen never completes
Show 13 more
  • App doesn't recognize bottle under dispenser
  • False 'refill water' warnings with full tank
  • False 'clean filter/funnel' messages that won't clear
  • App doesn't sync powder settings with machine
  • Start bottle button doesn't trigger machine
  • Registration email conflicts (already registered/not found)
  • App crashes when scrolling to specific countries
  • Scrolling locked when editing bottle settings
  • App loses connection randomly, especially at night
  • Formula database missing or outdated entries
  • Barcode scanner doesn't work
  • Water tank sensor miscalibration
  • Inconsistent water/formula ratio dispensing (25%+ variance)

Requested features

12 requests
  • Bottle history/usage log with timestamps
  • Track volume consumed by baby
  • Push notifications for errors and bottle completion
  • Refresh button on home screen
  • Apple Watch app compatibility
Show 7 more
  • Apple Shortcuts/Siri integration
  • App widgets and quick actions
  • Water level warning system
  • Cleaning cycle countdown reminders
  • Universal powder setting synchronization
  • 0.5oz increment options
  • Formula database updates matching website

Willow®

Reported bugs

3 issues
  • App frequently disconnects from pumps
  • Timer and session data not always accurate
  • Pumps sometimes stop working mid-session

Requested features

3 requests
  • Add ability to log pumping volume and history
  • Allow customization of pump timer
  • Improve app responsiveness and reliability

In-app purchases

None

Formula Pro Advanced WiFi

No in-app purchases

None

Willow®

No in-app purchases

Questions

Is Formula Pro Advanced WiFi free?
Formula Pro Advanced WiFi is free to download, with no in-app purchases.
Is Willow® free?
Willow® is free to download, with no in-app purchases.
Which has better reviews, Formula Pro Advanced WiFi or Willow®?
Willow® is rated higher. Formula Pro Advanced WiFi averages 1.8 out of 5 from 167 ratings, while Willow® averages 4.5 from 2.8K ratings.
Do Formula Pro Advanced WiFi or Willow® have ads?
Willow® shows ads; Formula Pro Advanced WiFi does not.
Which is updated more often, Formula Pro Advanced WiFi or Willow®?
Formula Pro Advanced WiFi ships an update every 6 weeks, and Willow® monthly. Most recently, Formula Pro Advanced WiFi was updated on November 3, 2026 and Willow® on November 3, 2026.

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