# Formula Pro Advanced WiFi vs Willow®

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.

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

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.

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

## The numbers

| Metric | Formula Pro Advanced WiFi | Willow® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (167 ratings)](https://appshunter.io/ios/app/formula-pro-advanced-wifi/id1541212950/reviews) | **[4.5 (2.8K ratings)](https://appshunter.io/ios/app/willow/id1579004074/reviews)** |
| Number of ratings | 167 | **2.8K** |
| Positive reviews | **14.0% of reviews** | 13.5% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 117 MB | 103 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Baby Brezza](https://appshunter.io/developer/1144953955) | [Willow Innovations, Inc.](https://appshunter.io/developer/1168207125) |

## What reviewers say

### Formula Pro Advanced WiFi

[App page](https://appshunter.io/ios/app/formula-pro-advanced-wifi/id1541212950)

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:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- 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


### Willow®

[App page](https://appshunter.io/ios/app/willow/id1579004074)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*