{"app_store_id":289560144,"slug":"pregnancy-tracker-app-wte-289560144","name":"Pregnancy Tracker App - WTE","subtitle":"Track Baby's Weekly Growth","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/4d/6a/88/4d6a88a1-4f04-a7f9-e812-2957c6b64c59/AppIcon-0-0-1x_U007epad-0-1-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/pregnancy-tracker-app-wte/id289560144?uo=4","price":0,"currency":"USD","rating":4.87039,"rating_count":380362,"in_app_purchases":false,"recent_rating":4.55,"recent_review_count":20,"reviews_checked_at":"2026-10-20T19:17:13.816Z","primary_genre":"Medical","version_date":"2026-10-19T03:08:21Z","updated_at":"2026-10-20T19:17:13.816Z","stale":false,"missing_since":null,"one_liner":"Free app for tracking pregnancy week by week and logging a baby's feedings, diaper changes, sleep and milestones.","verified_maker":false,"maker_site":null,"file_size_bytes":132224000,"minimum_os":"17.0","content_rating":"17+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/22/61/51/226151f3-9834-a8e3-3a81-e400c8f2417c/9036bf56-d7d4-4c8b-ade6-107bd2792762_1242x2208_1.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/96/ec/f0/96ecf02a-1654-e8d4-31ae-3afcd6b8a88f/c33c79f9-7f3e-43d9-84d9-b7e06a196e5b_1242x2208_2.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/70/f9/e9/70f9e9f3-5501-4bfd-a3ae-708fc5ab9a83/f0008806-137e-418f-9191-9236a40fdc1d_1242x2208_3.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/75/29/07/75290704-fa44-caed-ac20-fc646e684394/09e317fe-4a59-4828-a307-c423be177171_1242x2208_4.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/55/90/85/559085ab-2737-e115-ca66-07f178daad2d/8fc46002-18a4-48b1-a3dd-7bd2e9cb2263_1242x2208_5.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/99/5b/87/995b87b7-cb92-e466-b383-3498cf34e65a/4c7dc1c8-f8c8-412a-a7ea-e095cd50f0d1_1242x2208_6.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/1e/72/e9/1e72e9f6-3b9e-1f0b-5611-16d13db9bf6f/f5ae646b-3ba3-4950-85a9-cd8fb42ed66d_1242x2208_7.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/cb/ac/3c/cbac3cd6-3b31-d788-5a60-ab81115d18a7/91c5ae13-9010-470c-a288-fb44568bef15_1242x2208_8.jpg/392x696bb.jpg"],"developer_name":"Everyday Health, Inc.","editors_choice":false,"url":"https://apptierlist.com/apps/pregnancy-tracker-app-wte-289560144/","api_url":"https://apptierlist.com/api/v1/apps/pregnancy-tracker-app-wte-289560144","schema_version":"1.0","generated_at":"2026-10-21T23:53:44.256Z","data_as_of":"2026-10-21T23:23:13.302Z","description":"Get the #1 Pregnancy & Baby Tracker App to follow your pregnancy week-by-week and log your baby’s day.\n\nWhat to Expect is the world’s best-known all-in-one pregnancy and baby tracker app, trusted by more than 15 million parents. Our free app features daily pregnancy tracking and tips, a newborn and baby log, expert articles to support every stage, and connection with other parents in our Community.\n\nPregnancy Tracker\n\n* 3D pregnancy videos showing weekly baby development from conception to birth\n* Themed baby size comparisons featuring fruits, sports, snacks and more\n* Week-by-week pregnancy tracker showing baby development, pregnancy symptoms and daily tips\n* Log pregnancy symptoms, weight, kick counts, medications and memories\n* Expert-reviewed articles for every stage of pregnancy\n* My Registry tool to help you choose the best products and registry\n* Twin mode to represent your unique pregnancy journey\n\nNewborn & Baby Log\n\n* Free Baby Tracker tool to time and log baby’s feedings, diaper changes, sleep, pump sessions, and more\n* Month-by-month and milestone tracker for each step of your baby’s life, from the newborn to the toddler stage, including key first year milestones\n* Daily tips tailored to your baby’s age, stage, your postpartum recovery, and your parenting journey\n* Record your postpartum symptoms and medications \n* Medically reviewed articles and info about baby’s health, doctor’s appointments and vaccines\n\nFamily Planning Tools\n\n* Ovulation Calculator and Calendar pinpoints your most fertile days\n* Due Date Calculator estimates your baby’s due date\n* My Journal tool helps you document pregnancy symptoms, memories and notes\n\nAbout Us \n\nAll content on the What to Expect app is accurate, up-to-date, and reviewed by medical experts, including the What to Expect Medical Review Board. It aligns with current health guidelines and Heidi Murkoff’s trusted books.\n\nMedical information comes from expert sources like ACOG, AAP, and peer-reviewed journals to ensure reliability and credibility.\n\nFor more about What to Expect's medical review and editorial policy, visit: https://www.whattoexpect.com/medical-review/\nDo not sell my info: https://dsar.whattoexpect.com/\n\nLet’s connect on social media:\n\n* Instagram: @whattoexpect\n* X: @WhatToExpect\n* Facebook: facebook.com/whattoexpect\n* Pinterest: pinterest.com/whattoexpect\n* TikTok: @whattoexpect","facts":{"developer_id":289560147,"developer_url":"http://www.whattoexpect.com/mobile-app/","first_released":"2019-02-01T08:00:00Z","support_url":"https://www.whattoexpect.com/contact-us/","privacy_url":"http://www.whattoexpect.com/privacy-policy.aspx","website_url":"http://www.whattoexpect.com/mobile-app/","app_version":"27.0","release_notes":"This release includes small optimizations and bug fixes. Thanks for choosing What to Expect! It’s users like you that make the WTE community a trusted source of support for millions.","rating_current_version":4.87039,"rating_count_current_version":380362,"star_counts":[1549,941,5151,29976,342745],"genres":["Medical","Health & Fitness"],"languages":["EN"],"content_advisories":["Infrequent/Mild Medical/Treatment Information","Infrequent/Mild Alcohol, Tobacco, or Drug Use or References","Infrequent/Mild Sexual Content and Nudity","Infrequent/Mild Mature/Suggestive Themes"],"device_families":["watch","iphone","ipad"],"chart":{"name":"top-free Medical","position":25}},"freshness":{"apple_read_at":"2026-10-20T19:17:13.816Z","catalog_read_at":"2026-10-20T19:17:13.816Z","reviews_checked_at":"2026-10-20T19:17:13.816Z","summary_written_at":"2026-10-09T03:53:51.153Z","placed_at":"2026-10-02T09:07:06.464Z","scored_at":"2026-10-21T23:23:13.302Z"},"editorial":{"one_liner":"Free app for tracking pregnancy week by week and logging a baby's feedings, diaper changes, sleep and milestones.","what_is":"What to Expect is a medical category app with a pregnancy tracker covering weekly baby development, symptoms, and daily tips. It includes a newborn and baby log for feeding, sleep, diaper changes, pump sessions, and milestones, plus family planning tools such as an ovulation calculator and due date calculator. The listing says content is reviewed by medical experts and includes a community for connecting with other parents.","good_for":["Following pregnancy week by week with symptom and weight logs","Logging a newborn's feedings, sleep, and diaper changes","Estimating a due date or tracking fertile days while planning pregnancy"],"pricing":"Pregnancy Tracker App - WTE is free, with no in-app purchases on the App Store.","faq":[{"q":"Does the app cost money?","a":"The App Store listing shows the price as free."},{"q":"Is the medical information reviewed?","a":"The listing says articles are expert-reviewed and medically reviewed, and that medical information comes from sources such as ACOG, AAP, and peer-reviewed journals."},{"q":"Can it be used after the baby is born?","a":"Yes. The newborn and baby log covers feedings, diaper changes, sleep, pump sessions, postpartum symptoms and medications, and month-by-month milestones through the first year."}],"model":"claude-haiku-5-5","created_at":"2026-10-09T03:53:51.153Z"},"memberships":[{"list":"pregnancy-tracking","list_name":"pregnancy tracking","list_status":"active","list_url":"https://apptierlist.com/best/pregnancy-tracking/","position":2,"tier":"S","score":98.1,"components":{"rating":97.2,"votes":96.4,"rank":98.8,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-09T00:04:46.866Z"}],"main_list":"pregnancy-tracking","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":115647,"at":"2026-10-16T01:53:51.804Z","kind":"tier_changed","list":"pregnancy-tracking","app_store_id":289560144,"app":"pregnancy-tracker-app-wte-289560144","from":null,"to":"S","reason":"checked from the list's side: ranked #2","job":"rescore"},{"id":107259,"at":"2026-10-15T15:15:01.036Z","kind":"tier_changed","list":"pregnancy-tracking","app_store_id":289560144,"app":"pregnancy-tracker-app-wte-289560144","from":"S","to":null,"reason":"under review: not checked from the list's side yet","job":"rescore"},{"id":50901,"at":"2026-10-10T07:17:47.468Z","kind":"tier_changed","list":"pregnancy-tracking","app_store_id":289560144,"app":"pregnancy-tracker-app-wte-289560144","from":null,"to":"S","reason":"score 98","job":"rescore"},{"id":7987,"at":"2026-10-02T09:06:06.463Z","kind":"app_added","list":null,"app_store_id":289560144,"app":"pregnancy-tracker-app-wte-289560144","from":null,"to":null,"reason":"discovered","job":"listTurn"}],"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":"pregnancy-tracking","list_name":"pregnancy tracking","status":"active","review_status":"checked","position":2,"tier":"S","score":98.1,"components":{"rating":97.2,"votes":96.4,"rank":98.8,"recency":100},"ranks":[{"country":"us","rank":1},{"country":"gb","rank":2},{"country":"ca","rank":2},{"country":"au","rank":2},{"country":"de","rank":4}],"verdicts":[{"verdict":"keep","reason":"Its core feature is week-by-week pregnancy tracking of baby development and symptoms, which makes it a direct peer of BabyCenter and amma. The baby log is an addition to that, not its sole purpose.","verifier":"list check","decided_at":"2026-10-16T01:32:51.809Z","attempts":1,"current":true},{"verdict":"keep","reason":"Core job: week-by-week pregnancy tracker with baby development, symptoms, and daily tips, marketed as the #1 pregnancy tracker.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-08T22:49:13.058Z","attempts":1,"current":false}]}]},"data_version":40387,"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/pregnancy-tracker-app-wte-289560144/"}}