Willow® vs SimDin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
SimDin
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Decide what's for dinner once, and let SimDin handle the rest. SimDin builds a personalized meal plan around how you actually eat, turns it into a single consolidated grocery list, and if you shop at Kroger sends that list straight to your cart. No more staring into the fridge at 6pm. PLAN A WEEK IN SECONDS Tell SimDin your dietary preferences, allergies, cuisines you love, and how much time you have to cook. It generates a plan starting tomorrow, for as many meals as you want. MAKE IT YOURS A generated plan is a starting point, not a verdict. Tap any meal to regenerate just that one, swap it for a recipe you search, or lock it so it survives when you regenerate the rest of the week. ONE SMART GROCERY LIST Every ingredient across every meal is combined into one list, with quantities added up properly and items grouped by aisle. Export it as a PDF, or keep it in the app. SHOP WITHOUT RETYPING Connect a Kroger account and SimDin matches your list to real products at your store, with prices. Approve the matches and send everything to your Kroger cart in one tap. You finish checkout on Kroger. SCAN YOUR PANTRY AND YOUR COOKBOOK Point your camera at a shelf to add what you already have, so SimDin plans around it. Snap a photo of a recipe from a cookbook or a card and SimDin reads it in and saves it. BUILT FOR HOUSEHOLDS On Family, add up to 6 household members with their own dietary profiles, so one plan works for everyone at the table. ALSO INCLUDED - Recipe search and favorites - Nutrition information for every meal, including protein, carbs, fat, and fiber - Recurring meals for the nights that never change - Notifications when your plan and list are ready SUBSCRIPTIONS SimDin offers auto-renewing monthly subscriptions with a 14-day free trial: - SimDin Starter — $3.00/month: up to 4 plans per month, grocery lists, PDF export, recipe search - SimDin Pro — $5.00/month: unlimited plans, Kroger integration, nutrition tracking - SimDin Family — $7.00/month: everything in Pro, up to 6 household members with per-member dietary profiles Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your Apple Account settings after purchase. Any unused portion of a free trial is forfeited when you purchase a subscription. Terms of Use: https://simdin.ai/terms Privacy Policy: https://simdin.ai/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Willow® at none against SimDin's 3. Willow® also leads on iOS requirement (15.6 vs 26.2). SimDin's advantage is ads (none vs shown) and update cadence (daily vs monthly). On price and device support 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
Both are free to download. SimDin sells 3 in-app purchases, starting at $3.00 per month. Willow® asks for nothing beyond the download.
Willow® ships an update monthly, SimDin daily. The most recent releases landed on November 14, 2026 and October 31, 2026 respectively.
| Parameter | Willow® | SimDin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2.8K ratings) — better | — |
| Positive reviews | 13.5% of reviews | — |
| Number of ratings | 2.8K — better | — |
| Update frequency | Monthly | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 103 MB | 8 MB |
| Age rating | 12+ | 4+ |
| Developer | Willow Innovations, Inc. | Reign Commons LLC |
Bugs and requests
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
SimDin
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Willow®
No in-app purchases
SimDin
- SimDin Starter$3.001 Month
- SimDin Pro$5.001 Month
- SimDin Monthly$7.001 Month
Questions
Is Willow® free?
Is SimDin free?
Do Willow® or SimDin have ads?
Which is updated more often, Willow® or SimDin?
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