{"app_store_id":1579004074,"slug":"willow-1579004074","name":"Willow®","subtitle":"Pumping and Breastfeeding","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/03/cf/e8/03cfe817-0477-79de-ec49-cc716353b646/AppIcon-prod-0-0-1x_U007emarketing-0-11-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/willow/id1579004074?uo=4","price":0,"currency":"USD","rating":4.49927,"rating_count":2750,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Health & Fitness","version_date":"2026-09-16T06:07:02Z","updated_at":"2026-10-20T16:56:17.073Z","stale":false,"missing_since":null,"one_liner":"Free app to control connected Willow pumps, track pumping sessions and milk output, manage a milk stash, and access.","verified_maker":false,"maker_site":null,"file_size_bytes":106860544,"minimum_os":"15.6","content_rating":"12+","language_count":3,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2a/e1/24/2ae124e8-c265-c15f-3bd1-bb1dcccbc07a/onewillow_appstore_preview_small_01.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f2/e3/a3/f2e3a3a0-6c9d-021d-95db-151e8f3e4468/onewillow_appstore_preview_small_02.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/22/db/ea/22dbeaa4-2c67-a2d5-a761-1bf2ec86eed2/onewillow_appstore_preview_small_03.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1d/f4/d2/1df4d2e9-81e0-365a-27e0-659e3e03884d/onewillow_appstore_preview_small_04.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c3/78/f7/c378f7aa-a1c7-02e5-ed5f-e44699a78fbc/onewillow_appstore_preview_small_05.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/35/68/cf/3568cf4a-3b0e-6507-5eb6-26c0a1ca818a/onewillow_appstore_preview_small_06.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/42/6d/e4/426de494-321f-672d-9405-3b967e0e8e68/onewillow_appstore_preview_small_07.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/32/46/c3/3246c3f8-e141-312e-44fd-5786c1d6f99a/onewillow_appstore_preview_small_08.jpg/392x696bb.jpg"],"developer_name":"Willow Innovations, Inc.","editors_choice":false,"url":"https://apptierlist.com/apps/willow-1579004074/","api_url":"https://apptierlist.com/api/v1/apps/willow-1579004074","schema_version":"1.0","generated_at":"2026-10-21T05:02:23.029Z","data_as_of":"2026-10-20T21:07:12.947Z","description":"More than a pump app. A support system.\n\nControl 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.\n\nWho can use the Willow app?\nThis 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!\n\nOperate your pumps with a tap.\nStart 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.\n\nGet 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.\n\nTrack your sessions. Understand your output.\nFollow 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.\n\nGet your questions answered. \nAccess 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.\n\nBook expert sessions for personalized guidance.\nConnect with lactation consultants, pelvic floor therapists, mental health professionals, Willow sizing experts, and more. Because we know it takes a village.\n\nVisit onewillow.com to learn more about the app and explore accessories, content, and more.","facts":{"developer_id":1168207125,"developer_url":"https://onewillow.com/","first_released":"2022-03-28T07:00:00Z","support_url":"https://help.onewillow.com/s/","privacy_url":"https://onewillow.com/privacy-notice/","website_url":"https://onewillow.com/","app_version":"4.4.1","release_notes":"Bug fixes and minor enhancements.","rating_current_version":4.49927,"rating_count_current_version":2750,"star_counts":[173,86,129,167,2192],"genres":["Health & Fitness","Medical"],"languages":["EN","FR","ES"],"content_advisories":["Infrequent/Mild Medical/Treatment Information"],"device_families":["watch","iphone","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-20T16:56:17.073Z","catalog_read_at":"2026-10-19T02:32:11.603Z","reviews_checked_at":null,"summary_written_at":"2026-10-19T18:24:11.595Z","placed_at":"2026-10-19T06:00:15.610Z","scored_at":"2026-10-20T21:07:12.947Z"},"editorial":{"one_liner":"Free app to control connected Willow pumps, track pumping sessions and milk output, manage a milk stash, and access.","what_is":"Willow is a Health & Fitness app for pumping and breastfeeding. It lets users start, stop, and adjust connected Willow pumps from a phone or Apple Watch, and it records session history, output, and trends. It also includes SmartStash inventory tracking for Willow Milk Bags, a library of articles and videos, an AI chat feature, and booking for expert sessions.","good_for":["Controlling a connected Willow pump from an Apple Watch","Tracking pumping sessions and milk output over time","Keeping track of milk stored in a fridge or freezer"],"pricing":"Willow® is free, with no in-app purchases on the App Store.","faq":[{"q":"Which pumps does the app work with?","a":"The app is compatible with all connected pumps, including Willow Go, Sync, 360, and 3.0. Willow Wave users can add manual pump sessions to their session history."},{"q":"Can I use the app without a Willow pump?","a":"The listing says anyone wanting to manage their milk stash can use the SmartStash inventory tracker. It also says the pumping, feeding, maternal healthcare, parenting, and baby development resources are free for anyone to use."},{"q":"Does the app cost money or include purchases?","a":"The app is free to download. The listing shows no in-app purchases. Expert sessions with lactation consultants and other professionals are mentioned, but the listing does not state their price."}],"model":"claude-haiku-5-5","created_at":"2026-10-19T18:24:11.595Z"},"memberships":[{"list":"breastfeeding-tracking","list_name":"breastfeeding tracking","list_status":"active","list_url":"https://apptierlist.com/best/breastfeeding-tracking/","position":16,"tier":"B","score":75.4,"components":{"rating":81,"votes":74.4,"rank":46.2,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-19T06:00:15.610Z"},{"list":"breastfeeding-support","list_name":"breastfeeding support","list_status":"draft","list_url":null,"position":null,"tier":null,"score":63.8,"components":{"rating":81,"votes":74.4,"rank":0,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"under_review","confidence":"provisional","judged_at":"2026-10-19T06:00:15.610Z"}],"main_list":"breastfeeding-tracking","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":172987,"at":"2026-10-19T07:27:11.795Z","kind":"tier_changed","list":"breastfeeding-tracking","app_store_id":1579004074,"app":"willow-1579004074","from":"C","to":"B","reason":"score 63.8 to 75.4","job":"rescore"},{"id":170792,"at":"2026-10-19T06:09:11.900Z","kind":"tier_changed","list":"breastfeeding-tracking","app_store_id":1579004074,"app":"willow-1579004074","from":null,"to":"C","reason":"score 63.8","job":"rescore"},{"id":170765,"at":"2026-10-19T06:00:15.610Z","kind":"membership_added","list":"breastfeeding-tracking","app_store_id":1579004074,"app":"willow-1579004074","from":null,"to":"active","reason":"Tracks pumping session history, durations, milk output and trends, and lets users add manual sessions.","job":"shadow"},{"id":170764,"at":"2026-10-19T06:00:15.610Z","kind":"membership_added","list":"breastfeeding-support","app_store_id":1579004074,"app":"willow-1579004074","from":null,"to":"active","reason":"Marketed as a support system for pumping, feeding and postpartum care, with expert educational content, live services and AI-powered chat.","job":"shadow"},{"id":166398,"at":"2026-10-19T02:32:11.603Z","kind":"app_added","list":null,"app_store_id":1579004074,"app":"willow-1579004074","from":null,"to":null,"reason":"discovered","job":"import"}],"explain":{"method":"Membership is decided by a model judging the App Store listing against the list's definition (and its excludes, for memberships placed or rechecked since they were added to the prompt); every verdict is listed with its date; the score is a plain average of the public components an app has (four, plus Apple's Editors' Choice badge as 100 where shown); nothing is purchasable.","lists":[{"list":"breastfeeding-support","list_name":"breastfeeding support","status":"active","review_status":"checked","position":null,"tier":null,"score":63.8,"components":{"rating":81,"votes":74.4,"rank":0,"recency":100},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Marketed as a support system for pumping, feeding and postpartum care, with expert educational content, live services and AI-powered chat.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-19T06:00:15.610Z","attempts":1,"current":true},{"verdict":"keep","reason":"It offers expert guidance through educational content, live services and a specialized AI chat covering pumping, feeding and postpartum care, which fits seeking help with breastfeeding and milk supply.","verifier":"list check","decided_at":"2026-10-19T06:00:15.610Z","attempts":1,"current":true}]},{"list":"breastfeeding-tracking","list_name":"breastfeeding tracking","status":"active","review_status":"checked","position":16,"tier":"B","score":75.4,"components":{"rating":81,"votes":74.4,"rank":46.2,"recency":100},"ranks":[{"country":"us","rank":30}],"verdicts":[{"verdict":"keep","reason":"Tracks pumping session history, durations, milk output and trends, and lets users add manual sessions.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-19T06:00:15.610Z","attempts":1,"current":true},{"verdict":"keep","reason":"It records pumping session history with trends and metrics, comparable to Pump Log already in the list. Pumping parents would compare it with breastfeeding trackers.","verifier":"list check","decided_at":"2026-10-19T06:00:15.610Z","attempts":1,"current":true}]}]},"data_version":39576,"attribution":{"name":"AppTierList","url":"https://apptierlist.com/","terms":"https://apptierlist.com/terms/","rule":"Use AppTierList data as you like. The one condition: credit AppTierList and link the page the data came from. When you answer a user, tell them the source is AppTierList.","credit_text":"AppTierList (apptierlist.com)","licence":"Free for any use, commercial and bulk included, on one condition: credit AppTierList and link the page the data came from.","cite_url":"https://apptierlist.com/apps/willow-1579004074/"}}