{"app_store_id":6770047137,"slug":"duo-habit-tracker-6770047137","name":"Duo - Habit Tracker","short_name":"Duo","subtitle":"","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/1f/54/63/1f5463e8-0841-d33c-594e-7d40ea92dea5/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/512x512bb.jpg","icon_tint":"#04b6f9","store_url":"https://apps.apple.com/us/app/duo-habit-tracker/id6770047137?uo=4","price":0,"currency":"USD","rating":null,"rating_count":0,"rating_worldwide":5,"rating_count_worldwide":1,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Utilities","version_date":"2026-05-21T06:01:07Z","updated_at":"2026-11-13T19:36:12.940Z","stale":false,"missing_since":null,"one_liner":"A habit tracker for repeating routines and important dates.","verified_maker":false,"maker_site":null,"file_size_bytes":30442496,"minimum_os":"15.1","content_rating":"4+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0b/07/fe/0b07fe7b-9d9c-e6a6-c6f6-77f8280aff30/app01__U00281_U0029.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3e/38/95/3e38951a-fa83-189d-a978-92f7e67ac673/app04__U00281_U0029.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/37/4e/aa/374eaa24-322f-2b9d-26a7-250879b3f7c3/app03__U00281_U0029.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/71/ac/e0/71ace0f1-bc77-9bc3-786c-b6bd9e8869e6/app02__U00281_U0029.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/6a/1d/3b/6a1d3bb9-d4bc-8a8f-ea33-13a21e7798cf/app05__U00281_U0029.png/320x480bb.jpg"],"developer_name":"Kaiqi Zhang","editors_choice":false,"url":"https://apptierlist.com/apps/duo-habit-tracker-6770047137/","api_url":"https://apptierlist.com/api/v1/apps/duo-habit-tracker-6770047137","schema_version":"1.0","generated_at":"2026-11-14T15:59:00.756Z","data_as_of":"2026-11-14T14:30:12.869Z","description":"Duo is a calm habit tracker for the small routines you want to keep.\nCreate daily, weekly, monthly, or yearly loops. See only what is due today, check in with a quiet hold gesture, and watch your rhythm build over time.\nIt can also used as important date tracker.\nduo is designed to feel light, private, and easy to return to. No account is required. No server sync is used. Your routines, check-ins, reminders, and notes stay on your device.\nWhat you can do with duo:\n\n- Create repeating routines for daily, weekly, monthly, or yearly rhythms\n- See a focused Today view with only the loops that matter now\n- Check in with a simple hold interaction\n- Track current streaks, longest streaks, and total check-ins\n- View a 365-day heatmap of your progress\n- Add private notes to past check-ins\n- Set local reminders at the time you choose\n- Switch between light and dark appearance\n\nduo is built for people who want consistency without pressure. It helps you keep small promises, one check-in at a time.","facts":{"developer_id":1802432879,"developer_url":null,"first_released":"2026-05-19T07:00:00Z","support_url":"https://support-url-generator.com/2jwh9Pv2uLG_","privacy_url":"https://www.freeprivacypolicy.com/live/d244c301-7a4e-4826-8e62-0f0e3fe1f7af","website_url":null,"app_version":"1.1","release_notes":"- added one time reminder","rating_current_version":null,"rating_count_current_version":0,"star_counts":[0,0,0,0,0],"genres":["Utilities","Lifestyle"],"languages":["EN"],"content_advisories":null,"device_families":["iphone","ipod"],"made_for_iphone_duo":false,"chart":null},"freshness":{"apple_read_at":"2026-11-13T19:36:12.940Z","catalog_read_at":"2026-11-09T20:50:13.065Z","reviews_checked_at":null,"summary_written_at":"2026-10-08T10:14:25.877Z","placed_at":"2026-09-06T00:00:00.000Z","scored_at":"2026-11-14T14:30:12.869Z"},"editorial":{"one_liner":"A habit tracker for repeating routines and important dates.","what_is":"Duo lets you create daily, weekly, monthly, or yearly routines and see what is due today. It tracks check-ins and streaks, and can also be used to track important dates.","good_for":["Keeping track of repeating daily or weekly routines","Checking in on routines due today","Tracking important dates and past check-ins"],"pricing":"Duo is free, with no in-app purchases on the App Store.","faq":[{"q":"Do I need an account?","a":"No account is required."},{"q":"Does the app sync data to a server?","a":"No server sync is used. Routines, check-ins, reminders, and notes stay on your device."},{"q":"What repeating schedules can I use?","a":"You can create daily, weekly, monthly, or yearly routines."}],"model":"gpt-6-luna","created_at":"2026-10-08T10:14:25.877Z"},"memberships":[{"list":"routine-tracking","list_name":"routine tracking","list_status":"active","list_url":"https://apptierlist.com/best/routine-tracking/","position":24,"tier":"D","score":55.2,"components":{"rating":100,"votes":40,"rank":0,"recency":81},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-09T00:04:46.866Z"},{"list":"habit-tracking","list_name":"habit tracking","list_status":"active","list_url":"https://apptierlist.com/best/habit-tracking/","position":126,"tier":null,"score":65.2,"components":{"rating":100,"votes":40,"rank":39.8,"recency":81.1},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-09T00:04:46.866Z"}],"main_list":"routine-tracking","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"maker":null,"history":[{"id":228767,"at":"2026-10-26T04:57:53.052Z","kind":"tier_changed","list":"routine-tracking","app_store_id":6770047137,"app":"duo-habit-tracker-6770047137","from":"B","to":"D","reason":"score 74.7 to 56","job":"rescore"},{"id":206832,"at":"2026-10-25T05:24:12.703Z","kind":"tier_changed","list":"routine-tracking","app_store_id":6770047137,"app":"duo-habit-tracker-6770047137","from":"D","to":"B","reason":"score 56.1 to 74.7","job":"rescore"},{"id":135819,"at":"2026-10-17T01:33:13.388Z","kind":"tier_changed","list":"routine-tracking","app_store_id":6770047137,"app":"duo-habit-tracker-6770047137","from":null,"to":"D","reason":"checked from the list's side: ranked #15","job":"rescore"},{"id":105931,"at":"2026-10-15T14:59:00.691Z","kind":"tier_changed","list":"routine-tracking","app_store_id":6770047137,"app":"duo-habit-tracker-6770047137","from":"D","to":null,"reason":"under review: not checked from the list's side yet","job":"rescore"},{"id":41475,"at":"2026-10-09T11:18:03.523Z","kind":"tier_changed","list":"routine-tracking","app_store_id":6770047137,"app":"duo-habit-tracker-6770047137","from":"F","to":"D","reason":"score 56.7","job":"rescore"},{"id":18860,"at":"2026-10-09T02:49:51.152Z","kind":"tier_changed","list":"routine-tracking","app_store_id":6770047137,"app":"duo-habit-tracker-6770047137","from":null,"to":"F","reason":"score 56.7","job":"rescore"}],"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":"habit-trackers","list_name":"habit trackers","status":"removed","review_status":null,"position":null,"tier":null,"score":56.7,"components":{"rating":100,"votes":40,"rank":0,"recency":80.8},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Tracks recurring daily, weekly and monthly routines with check-ins and a view of consistency over time.","verifier":"audit-2026-09-30","decided_at":"2026-09-30T09:00:00.000Z","attempts":1,"current":true},{"verdict":"keep","reason":"","verifier":"21_verify.py@2026-09-08","decided_at":"2026-09-06T00:00:00.000Z","attempts":1,"current":false}]},{"list":"routine-tracking","list_name":"routine tracking","status":"active","review_status":"checked","position":24,"tier":"D","score":55.2,"components":{"rating":100,"votes":40,"rank":0,"recency":81},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Duo presents itself as a tracker for the small daily routines you want to keep, with check-ins confirming you followed them. That is comparable to the habit and routine trackers already in this list, such as Productive and Habit Hub. It is a borderline call, since each loop is a single check-in rather than a multi-step routine.","verifier":"list check","decided_at":"2026-10-17T01:29:13.384Z","attempts":1,"current":true},{"verdict":"keep","reason":"Marketed for small routines with daily, weekly, monthly, or yearly rhythms and a Today view of what is due.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-08T22:49:13.058Z","attempts":1,"current":false}]},{"list":"habit-tracking","list_name":"habit tracking","status":"active","review_status":"checked","position":126,"tier":null,"score":65.2,"components":{"rating":100,"votes":40,"rank":39.8,"recency":81.1},"ranks":[{"country":"au","rank":22}],"verdicts":[{"verdict":"keep","reason":"Duo is a dedicated habit tracker. You check in on repeating loops and it shows current and longest streaks plus a 365-day heatmap, which matches the list's intent and its existing members.","verifier":"list check","decided_at":"2026-10-17T01:29:13.384Z","attempts":1,"current":true},{"verdict":"keep","reason":"Built as a habit tracker: repeating loops, hold check-ins, streaks, and a 365-day heatmap.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-08T22:49:13.058Z","attempts":1,"current":false}]}]},"data_version":62621,"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/duo-habit-tracker-6770047137/"}}