{"app_store_id":6759658033,"slug":"trace-acne-skin-tracker-6759658033","name":"Trace: Acne & Skin Tracker","short_name":"Trace","subtitle":"See If Your Skincare Works","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/c0/ce/e0/c0cee0b1-9de4-3c87-2e4d-f6612afa8059/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/512x512bb.jpg","icon_tint":"#fa9558","store_url":"https://apps.apple.com/us/app/trace-acne-skin-tracker/id6759658033?uo=4","price":0,"currency":"USD","rating":5,"rating_count":13,"rating_worldwide":5,"rating_count_worldwide":13,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Health & Fitness","version_date":"2026-11-07T20:32:25Z","updated_at":"2026-11-11T12:15:12.887Z","stale":false,"missing_since":null,"one_liner":"Scans your face daily with your iPhone camera and tracks four skin scores (acne, redness, pores, spots) as trends over.","verified_maker":false,"maker_site":null,"file_size_bytes":132773888,"minimum_os":"17.0","content_rating":"12+","language_count":5,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/87/b9/79/87b979c9-198a-75df-1b1c-a40054bb3f51/1.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/50/55/47/50554735-4ecd-b966-64eb-9fdb8da25951/2_flat.jpg/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/82/ef/21/82ef2152-d2e2-49e3-0621-d769cded3c8a/3.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/4b/81/06/4b8106f5-c6af-bfd1-659c-e657256b6bfb/4.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b2/7f/b1/b27fb1ff-72a8-83e6-0ab3-d7c5dabfc325/5.png/320x480bb.jpg"],"developer_name":"TraceHQ, Inc.","editors_choice":false,"url":"https://apptierlist.com/apps/trace-acne-skin-tracker-6759658033/","api_url":"https://apptierlist.com/api/v1/apps/trace-acne-skin-tracker-6759658033","schema_version":"1.0","generated_at":"2026-11-14T16:41:38.596Z","data_as_of":"2026-11-14T16:39:12.758Z","description":"See if your skincare is actually doing anything.\n\nTrace turns a daily selfie into four simple numbers, so you can watch your skin over weeks instead of guessing in the mirror every morning.\n\nHOW IT WORKS\n1. Scan your face. It takes about two seconds.\n2. Keep your routine steady and change one thing at a time.\n3. Watch the line. Weeks tell you what a single day never can.\n\nWHAT YOU SEE\nFour scores, each 0 to 100, where higher always means calmer and clearer:\nAcne, Redness, Pores, Spots.\n\nPlus a trend line for each, a daily note from your Trace buddy, and a report at the end of every test.\n\nONE THING AT A TIME\nChange three products at once and your skin improves, and you have learned nothing. Trace is built around changing one variable while everything else holds still. It is slower. It is also the only honest way to find out what worked on your face.\n\nYOUR SCAN RUNS ON YOUR PHONE\nYour four skin scores are measured on your iPhone, so scanning never sends your photo anywhere. Photos sync only to your own private account. Optional AI features, like product recommendations, send a photo only when you choose to use them.\n\nTALK TO IT LIKE A DIARY\nTell Trace what you ate, how you slept, whether you were stressed, travelling, or on your period. It lines all of that up against your skin trend, so you can tell a product effect from ordinary life noise.\n\nWHY WEEKS, NOT DAYS\nAdult skin renews itself over roughly 28 days, and most active ingredients need four to six weeks before anything real shows up. One day of wiggle means almost nothing. The line means a lot.\n\nWHAT TRACE IS NOT\nTrace measures, it does not diagnose. The scores describe what the camera saw in this light, on this day. They are not a medical assessment. If something about your skin worries you, please see a dermatologist.\n\nFREQUENTLY ASKED\n\nQ: Does scanning upload my face to an AI server?\nA: No. Your four scores are measured on your iPhone. Photos sync to your own private account. Optional AI features send a photo only when you choose to use them.\n\nQ: How soon will I see something?\nA: Give it a few weeks. Day to day movement is normal and expected. The trend is the part worth reading.\n\nQ: Can I test more than one product at a time?\nA: You can, but then you will not know which one did it.\n\nQ: What if I miss a day?\nA: Nothing breaks. Come back and keep going. The line survives gaps better than you would think.\n\nSUPPORT\nQuestions, bugs, or feedback: support@traceshq.com","facts":{"developer_id":6828285371,"developer_url":null,"first_released":"2026-05-13T07:00:00Z","support_url":"https://traceshq.com/","privacy_url":"https://traceshq.com/privacy","website_url":null,"app_version":"1.3.2","release_notes":"We’ve made the Journal a little smoother to use, with improved date selection and note editing. We also fixed an issue that could keep synced entries from showing up after an update. Thanks for being part of Trace.","rating_current_version":5,"rating_count_current_version":13,"star_counts":[0,0,0,0,13],"genres":["Health & Fitness"],"languages":["EN","FR","DE","ZH","ES"],"content_advisories":["Infrequent/Mild Medical/Treatment Information","Infrequent/Mild Alcohol, Tobacco, or Drug Use or References"],"device_families":["iphone"],"made_for_iphone_duo":false,"chart":null},"freshness":{"apple_read_at":"2026-11-11T12:15:12.887Z","catalog_read_at":"2026-11-05T17:25:13.109Z","reviews_checked_at":null,"summary_written_at":"2026-11-05T12:09:12.699Z","placed_at":"2026-11-05T12:28:12.895Z","scored_at":"2026-11-14T16:39:12.758Z"},"editorial":{"one_liner":"Scans your face daily with your iPhone camera and tracks four skin scores (acne, redness, pores, spots) as trends over.","what_is":"Trace turns a daily selfie into four scores from 0 to 100, where higher means calmer and clearer. It shows a trend line for each score, a daily note from its in-app buddy, and a report at the end of each test. The listing says scores are measured on the iPhone and are not a medical assessment.","good_for":["Checking whether one skincare product change shows up over several weeks","Logging sleep, diet, stress, travel, or period alongside skin trends","Keeping a daily skin photo record without guessing from the mirror"],"pricing":"Trace is free, with no in-app purchases on the App Store.","faq":[{"q":"Does scanning upload my face to an AI server?","a":"No. The four scores are measured on your iPhone and photos sync only to your own private account. Optional AI features send a photo only when you choose to use them."},{"q":"How soon will I see something?","a":"The listing recommends giving it a few weeks, since adult skin renews over roughly 28 days and most active ingredients need four to six weeks. Day to day movement is described as normal."},{"q":"Can Trace diagnose skin conditions?","a":"No. The listing says Trace measures and does not diagnose. The scores describe what the camera saw in that light on that day, and it recommends seeing a dermatologist about any worries."}],"model":"claude-haiku-5-5","created_at":"2026-11-05T12:09:12.699Z"},"memberships":[{"list":"acne-tracking","list_name":"acne tracking","list_status":"active","list_url":"https://apptierlist.com/best/acne-tracking/","position":2,"tier":"A","score":87,"components":{"rating":100,"votes":51.1,"rank":97,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-11-05T12:28:12.895Z"},{"list":"skin-tracking","list_name":"skin tracking","list_status":"active","list_url":"https://apptierlist.com/best/skin-tracking/","position":3,"tier":"A","score":86.9,"components":{"rating":100,"votes":51.1,"rank":96.4,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-11-05T12:28:12.895Z"},{"list":"skin-analysis","list_name":"skin analysis","list_status":"active","list_url":"https://apptierlist.com/best/skin-analysis/","position":8,"tier":"B","score":79.3,"components":{"rating":100,"votes":51.1,"rank":66,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-11-05T12:28:12.895Z"}],"main_list":"acne-tracking","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"maker":null,"history":[{"id":290250,"at":"2026-11-11T20:41:13.192Z","kind":"tier_changed","list":"acne-tracking","app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","from":null,"to":"A","reason":"list left review: 6 or more members checked, ranked #2","job":"rescore"},{"id":282926,"at":"2026-11-09T01:05:14.077Z","kind":"tier_changed","list":"skin-tracking","app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","from":"C","to":"A","reason":"score 62.8 to 86.8","job":"rescore"},{"id":270582,"at":"2026-11-06T02:09:13.008Z","kind":"tier_changed","list":"skin-analysis","app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","from":"C","to":"B","reason":"score 61.9 to 77.9","job":"rescore"},{"id":267653,"at":"2026-11-05T12:39:13.219Z","kind":"tier_changed","list":"skin-tracking","app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","from":null,"to":"C","reason":"score 61.9","job":"rescore"},{"id":267646,"at":"2026-11-05T12:39:13.219Z","kind":"tier_changed","list":"skin-analysis","app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","from":null,"to":"C","reason":"score 61.9","job":"rescore"},{"id":267631,"at":"2026-11-05T12:28:12.895Z","kind":"membership_added","list":"skin-tracking","app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","from":null,"to":"active","reason":"Core job is following four skin scores (Acne, Redness, Pores, Spots) over weeks with trend lines and end-of-test reports to see if skin is improving.","job":"shadow"},{"id":267630,"at":"2026-11-05T12:28:12.895Z","kind":"membership_added","list":"skin-analysis","app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","from":null,"to":"active","reason":"A two-second selfie scan, run on the iPhone, turns a photo into four skin condition scores (Acne, Redness, Pores, Spots) with a daily note and report.","job":"shadow"},{"id":267629,"at":"2026-11-05T12:28:12.895Z","kind":"membership_added","list":"acne-tracking","app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","from":null,"to":"active","reason":"Title says Acne & Skin Tracker; daily selfie scans give an Acne score with trend lines over weeks, and diary entries on food, sleep and stress show what helps o","job":"shadow"},{"id":267577,"at":"2026-11-05T12:00:13.095Z","kind":"app_added","list":null,"app_store_id":6759658033,"app":"trace-acne-skin-tracker-6759658033","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 an average of the components an app has (four public App Store signals, plus Apple's Editors' Choice badge as 100 where shown, plus ownership as 100 where the maker has verified it with our badge: it shows in components as ownership_verified); nothing is purchasable. Apps whose maker has verified ownership get a small score component, because an active maker is a sign the app is kept up to date. It never decides a tier on its own. Updated daily.","lists":[{"list":"acne-tracking","list_name":"acne tracking","status":"active","review_status":"checked","position":2,"tier":"A","score":87,"components":{"rating":100,"votes":51.1,"rank":97,"recency":100},"ranks":[{"country":"us","rank":3},{"country":"gb","rank":6},{"country":"ca","rank":3},{"country":"au","rank":3},{"country":"de","rank":5}],"verdicts":[{"verdict":"keep","reason":"Title says Acne & Skin Tracker; daily selfie scans give an Acne score with trend lines over weeks, and diary entries on food, sleep and stress show what helps o","verifier":"claude-sonnet-5-5","decided_at":"2026-11-05T12:28:12.895Z","attempts":1,"current":true},{"verdict":"keep","reason":"Its core purpose is tracking acne and other skin scores from daily selfies over weeks, and testing one change at a time to see what helps.","verifier":"list check","decided_at":"2026-11-05T12:28:12.895Z","attempts":1,"current":true}]},{"list":"skin-tracking","list_name":"skin tracking","status":"active","review_status":"checked","position":3,"tier":"A","score":86.9,"components":{"rating":100,"votes":51.1,"rank":96.4,"recency":100},"ranks":[{"country":"us","rank":1},{"country":"gb","rank":10},{"country":"ca","rank":9},{"country":"au","rank":1},{"country":"de","rank":2}],"verdicts":[{"verdict":"keep","reason":"Core job is following four skin scores (Acne, Redness, Pores, Spots) over weeks with trend lines and end-of-test reports to see if skin is improving.","verifier":"claude-sonnet-5-5","decided_at":"2026-11-05T12:28:12.895Z","attempts":1,"current":true},{"verdict":"keep","reason":"It records skin changes over time with trend lines across four measures, not only acne, which fits following whether the skin is improving.","verifier":"list check","decided_at":"2026-11-05T12:28:12.895Z","attempts":1,"current":true}]},{"list":"skin-analysis","list_name":"skin analysis","status":"active","review_status":"checked","position":8,"tier":"B","score":79.3,"components":{"rating":100,"votes":51.1,"rank":66,"recency":100},"ranks":[{"country":"au","rank":34},{"country":"de","rank":24},{"country":"gb","rank":38},{"country":"ca","rank":44},{"country":"us","rank":35}],"verdicts":[{"verdict":"keep","reason":"A two-second selfie scan, run on the iPhone, turns a photo into four skin condition scores (Acne, Redness, Pores, Spots) with a daily note and report.","verifier":"claude-sonnet-5-5","decided_at":"2026-11-05T12:28:12.895Z","attempts":1,"current":true},{"verdict":"keep","reason":"It scans the face from a photo to score skin condition (acne, redness, pores, spots) and offers optional AI product recommendations, so it compares directly with skin scanner apps.","verifier":"list check","decided_at":"2026-11-05T12:28:12.895Z","attempts":1,"current":true}]}]},"data_version":62649,"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/trace-acne-skin-tracker-6759658033/"}}