{"app_store_id":1541992656,"slug":"blood-oxygen-app-1541992656","name":"Blood Oxygen App","subtitle":"SpO2 Level Monitor・Heart Rate","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/f5/59/d2/f559d26f-cfe7-ae83-30d7-e61bc45807e8/AppIcon-0-0-1x_U007emarketing-0-8-0-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/blood-oxygen-app/id1541992656?uo=4","price":0,"currency":"USD","rating":4.59126,"rating_count":31340,"in_app_purchases":true,"recent_rating":2.6,"recent_review_count":20,"reviews_checked_at":"2026-10-17T17:01:13.396Z","primary_genre":"Medical","version_date":"2026-10-02T00:11:21Z","updated_at":"2026-10-19T03:26:11.606Z","stale":false,"missing_since":null,"one_liner":"Logs blood oxygen and heart rate readings, syncs with Apple Watch and Apple Health, and exports data to PDF for sharing.","verified_maker":false,"maker_site":null,"file_size_bytes":331724800,"minimum_os":"15.0","content_rating":"12+","language_count":9,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1e/48/4a/1e484ab2-5bb0-20c1-4754-c00b15fb1494/17e9d678-43a9-434c-a352-1795e2507ca9_iPhone_13__U0026_14_-_1.1.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/28/81/4d/28814d9c-e630-5dde-bff6-4156e5aaf511/0fac958c-4b5e-4c6b-9b77-8f0133788215_iPhone_13__U0026_14_-_1.2.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8a/8e/d7/8a8ed7c8-caac-4142-ad8c-5e8249f286d9/5208fe34-dfc6-4f00-a176-920216cb08cc_iPhone_13__U0026_14_-_1.3.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4a/aa/dd/4aaadd08-6823-c44e-5c5b-c2a74c5eba5d/9672eca1-0ac0-4c11-ab21-2556a491a6c4_iPhone_13__U0026_14_-_1.4.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/05/4f/b4/054fb4da-3269-47ef-2bbe-4d0cbfa67c65/b5915686-b9b7-4cfb-9e61-59d857e4484d_iPhone_13__U0026_14_-_1.5.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d0/50/56/d0505697-c099-199e-7bdb-5279a3934151/96dcf50c-9423-45ee-9148-1e41d8ef8c0d_iPhone_13__U0026_14_-_1.6.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/6b/5f/d1/6b5fd17f-91da-dce9-2152-05ba6ea84657/65b30578-38d6-485b-949b-6c3357600447_iPhone_13__U0026_14_-_1.7.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/be/7f/8a/be7f8a17-dff6-8c03-c537-1fea5eaf94a7/dd882e3e-f678-4d79-bb49-cc736ebd3f10_iPhone_13__U0026_14_-_1.8.jpg/392x696bb.jpg"],"developer_name":"AboutMe Apps, Inc.","editors_choice":false,"url":"https://apptierlist.com/apps/blood-oxygen-app-1541992656/","api_url":"https://apptierlist.com/api/v1/apps/blood-oxygen-app-1541992656","schema_version":"1.0","generated_at":"2026-10-20T15:53:32.610Z","data_as_of":"2026-10-20T13:22:11.729Z","description":"Monitor your blood oxygen level and heart rate effortlessly with our app and sync your Apple Watch to get alerts about low levels.*\n\nAre you worried about your oxygen levels dropping or wondering how your activities affect your blood oxygen? Our app makes it easy to track these vital signs wherever you go.\n\nTrack and log your vital signs to share with your doctor later, or stay informed about your cardiovascular health with curated articles—all in one app.\n\n\n\nBut hang on, there's more:\n\n• Take an oxygen test effortlessly, and conveniently record and monitor your data.\n\n• Use your phone’s camera to estimate your heart rate and then easily log your data afterward.\n\n• Sync and store your data in Apple Health or retrieve your blood oxygen and heart rate readings from Apple Health.\n\n• Log and easily export your blood oxygen and heart rate data into PDF to share with your doctor.\n\n• Regain your calm after a stressful experience by practicing box breathing, all within the app!\n\n• Receive sleep reports to assist you in achieving your sleep goals. (requires an Apple Watch Series 3 or later with watchOS 8)\n\n\n\n*Please be aware that to receive push notifications regarding changes in your blood oxygen level or heart rate, you will need an external device such as a pulse oximeter or a smartwatch.\n\nBlood Oxygen App is free to download and utilize. However, users can opt for a subscription to access additional features. Your subscription will automatically renew and you’ll be billed based on the plan you choose. You can cancel your subscription at any time in the App Store.\n\nDisclaimer: For wellness use only. The App is intended to improve your awareness of general wellness. The App can't be used for diagnostics or medical purposes. The App does not diagnose, treat, mitigate, or prevent any disease, symptom, disorder, or abnormal physical state. Always seek a health care professional or emergency services if you believe you may have a medical issue.\n\nTerms of use: https://aboutmeapps.com/terms-of-use/\n\nPrivacy policy: https://aboutmeapps.com/privacy-policy/","facts":{"developer_id":1088980079,"developer_url":null,"first_released":"2020-12-03T08:00:00Z","support_url":"https://aboutmeapps.com/","privacy_url":"https://aboutmeapps.com/privacy-policy","website_url":null,"app_version":"2.67","release_notes":"Important bug fixes. Please, try our new update!","rating_current_version":4.59126,"rating_count_current_version":31340,"star_counts":[1275,459,1416,3500,24690],"genres":["Medical","Health & Fitness"],"languages":["EN","FR","DE","HI","IT","JA","PT","RU","ES"],"content_advisories":["Infrequent/Mild Alcohol, Tobacco, or Drug Use or References","Infrequent/Mild Medical/Treatment Information"],"device_families":["watch","iphone","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-19T03:26:11.606Z","catalog_read_at":"2026-10-17T17:01:13.396Z","reviews_checked_at":"2026-10-17T17:01:13.396Z","summary_written_at":"2026-10-13T05:41:52.720Z","placed_at":"2026-10-13T02:17:53.698Z","scored_at":"2026-10-20T13:22:11.729Z"},"editorial":{"one_liner":"Logs blood oxygen and heart rate readings, syncs with Apple Watch and Apple Health, and exports data to PDF for sharing.","what_is":"The Blood Oxygen App is a free Medical app for tracking blood oxygen and heart rate, with syncing to Apple Watch and Apple Health. It can estimate heart rate using the phone camera, log readings, export them as PDF, and includes box breathing and sleep reports. The app is for wellness use only and not for diagnostics or medical purposes.","good_for":["Logging vital signs to share with a doctor later","Tracking how activities affect blood oxygen","Practicing box breathing after a stressful experience"],"pricing":"Blood Oxygen App is free to download, with in-app purchases on the App Store.","faq":[{"q":"Can the app be used to diagnose a medical condition?","a":"No. The app is for wellness use only and cannot be used for diagnostics or medical purposes. It does not diagnose, treat, mitigate, or prevent any disease, and users should contact a health care professional or emergency se"},{"q":"Do I need an Apple Watch to use it?","a":"You can sync an Apple Watch to get alerts about low levels, and sleep reports require an Apple Watch Series 3 or later with watchOS 8. For push notifications about changes in blood oxygen or heart rate, the listing says an"},{"q":"Can I share my data with a doctor?","a":"Yes. You can log your blood oxygen and heart rate data and export it as a PDF to share with your doctor. Data can also be synced and stored in Apple Health."}],"model":"claude-haiku-5-5","created_at":"2026-10-13T05:41:52.720Z"},"memberships":[{"list":"heart-health-tracking","list_name":"heart health tracking","list_status":"active","list_url":"https://apptierlist.com/best/heart-health-tracking/","position":20,"tier":"B","score":85.4,"components":{"rating":91.3,"votes":85.8,"rank":64.6,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-13T02:17:53.698Z"},{"list":"heart-rate-monitoring","list_name":"heart rate monitoring","list_status":"active","list_url":"https://apptierlist.com/best/heart-rate-monitoring/","position":22,"tier":"B","score":81.8,"components":{"rating":91.3,"votes":85.8,"rank":50,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-13T02:17:53.698Z"},{"list":"vital-signs-tracking","list_name":"vital signs tracking","list_status":"active","list_url":"https://apptierlist.com/best/vital-signs-tracking/","position":43,"tier":null,"score":69.3,"components":{"rating":91.3,"votes":85.8,"rank":0,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-13T02:17:53.698Z"},{"list":"health-tracking","list_name":"health tracking","list_status":"active","list_url":"https://apptierlist.com/best/health-tracking/","position":51,"tier":null,"score":69.3,"components":{"rating":91.3,"votes":85.8,"rank":0,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-13T02:17:53.698Z"}],"main_list":"heart-rate-monitoring","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":184537,"at":"2026-10-20T06:30:12.097Z","kind":"tier_changed","list":"vital-signs-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":"C","to":null,"reason":"rank shift: #43, below the tiered top 40","job":"rescore"},{"id":150844,"at":"2026-10-18T02:44:11.608Z","kind":"tier_changed","list":"health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":"D","to":null,"reason":"rank shift: #41, below the tiered top 40","job":"rescore"},{"id":147296,"at":"2026-10-17T14:48:13.404Z","kind":"tier_changed","list":"health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":"C","to":"D","reason":"rank shift: #40, score unchanged at 69.3, tier full (a quarter of the list)","job":"rescore"},{"id":132929,"at":"2026-10-16T18:49:42.149Z","kind":"tier_changed","list":"heart-rate-monitoring","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":"C","to":"B","reason":"rank shift: #20, score 80.3, tier full (a quarter of the list)","job":"rescore"},{"id":131089,"at":"2026-10-16T16:26:01.111Z","kind":"tier_changed","list":"heart-health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":"C","to":"B","reason":"rank shift: #16, score unchanged at 83.3, tier full (a quarter of the list)","job":"rescore"},{"id":103773,"at":"2026-10-15T10:43:36.045Z","kind":"tier_changed","list":"heart-health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":"A","to":"C","reason":"rank shift: #15, score unchanged at 83.3, tier full (a quarter of the list)","job":"rescore"},{"id":80616,"at":"2026-10-14T14:06:19.987Z","kind":"tier_changed","list":"heart-health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":"C","to":"A","reason":"score 83.1","job":"rescore"},{"id":70980,"at":"2026-10-13T10:19:54.821Z","kind":"tier_changed","list":"vital-signs-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":null,"to":"C","reason":"score 69.3","job":"rescore"},{"id":68715,"at":"2026-10-13T02:28:52.907Z","kind":"tier_changed","list":"heart-rate-monitoring","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":null,"to":"C","reason":"score 69.3","job":"rescore"},{"id":68708,"at":"2026-10-13T02:28:52.907Z","kind":"tier_changed","list":"heart-health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":null,"to":"C","reason":"score 83.5","job":"rescore"},{"id":68704,"at":"2026-10-13T02:28:52.907Z","kind":"tier_changed","list":"health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":null,"to":"C","reason":"score 69.3","job":"rescore"},{"id":68507,"at":"2026-10-13T02:17:53.698Z","kind":"membership_added","list":"vital-signs-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":null,"to":"active","reason":"Core job is to track and log blood oxygen and heart rate, sync with Apple Health, and export to PDF for a doctor; the listing calls these 'vital signs'.","job":"shadow"},{"id":68506,"at":"2026-10-13T02:17:53.698Z","kind":"membership_added","list":"heart-rate-monitoring","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":null,"to":"active","reason":"Uses the phone camera to estimate heart rate, then logs it and syncs with Apple Health; heart rate is named alongside blood oxygen in the opening description.","job":"shadow"},{"id":68505,"at":"2026-10-13T02:17:53.698Z","kind":"membership_added","list":"heart-health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":null,"to":"active","reason":"secondary","job":"shadow"},{"id":68504,"at":"2026-10-13T02:17:53.698Z","kind":"membership_added","list":"health-tracking","app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","from":null,"to":"active","reason":"placed by the category system","job":"shadow"},{"id":64578,"at":"2026-10-12T18:26:02.504Z","kind":"app_added","list":null,"app_store_id":1541992656,"app":"blood-oxygen-app-1541992656","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":"heart-health-tracking","list_name":"heart health tracking","status":"active","review_status":"checked","position":20,"tier":"B","score":85.4,"components":{"rating":91.3,"votes":85.8,"rank":64.6,"recency":100},"ranks":[{"country":"au","rank":25},{"country":"gb","rank":20},{"country":"ca","rank":35},{"country":"de","rank":41}],"verdicts":[{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-14T13:05:19.821Z","attempts":1,"current":true},{"verdict":"keep","reason":"secondary","verifier":"claude-sonnet-5-5","decided_at":"2026-10-13T02:17:53.698Z","attempts":1,"current":false}]},{"list":"heart-rate-monitoring","list_name":"heart rate monitoring","status":"active","review_status":"checked","position":22,"tier":"B","score":81.8,"components":{"rating":91.3,"votes":85.8,"rank":50,"recency":100},"ranks":[{"country":"gb","rank":44},{"country":"de","rank":28}],"verdicts":[{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-14T13:05:19.821Z","attempts":1,"current":true},{"verdict":"keep","reason":"Uses the phone camera to estimate heart rate, then logs it and syncs with Apple Health; heart rate is named alongside blood oxygen in the opening description.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-13T02:17:53.698Z","attempts":1,"current":false}]},{"list":"vital-signs-tracking","list_name":"vital signs tracking","status":"active","review_status":"checked","position":43,"tier":null,"score":69.3,"components":{"rating":91.3,"votes":85.8,"rank":0,"recency":100},"ranks":[],"verdicts":[{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-14T13:05:19.821Z","attempts":1,"current":true},{"verdict":"keep","reason":"Core job is to track and log blood oxygen and heart rate, sync with Apple Health, and export to PDF for a doctor; the listing calls these 'vital signs'.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-13T02:17:53.698Z","attempts":1,"current":false}]},{"list":"health-tracking","list_name":"health tracking","status":"active","review_status":"checked","position":51,"tier":null,"score":69.3,"components":{"rating":91.3,"votes":85.8,"rank":0,"recency":100},"ranks":[],"verdicts":[{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-14T13:05:19.821Z","attempts":1,"current":true}]}]},"data_version":39026,"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/blood-oxygen-app-1541992656/"}}