{"app_store_id":6759931581,"slug":"rezet-nervous-system-toolkit-6759931581","name":"REZET - Nervous System Toolkit","short_name":"REZET - Nervous System Toolkit","subtitle":"Physiological Anxiety Relief","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/9b/f7/6d/9bf76db4-b986-1543-d372-70769bb6826e/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/512x512bb.jpg","icon_tint":null,"store_url":"https://apps.apple.com/us/app/rezet-nervous-system-toolkit/id6759931581?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":"Health & Fitness","version_date":"2026-06-09T01:41:53Z","updated_at":"2026-11-11T23:28:13.032Z","stale":false,"missing_since":null,"one_liner":"Guided breathing protocols for acute stress, plus a 1-minute fingertip camera reading that estimates HRV, heart rate.","verified_maker":false,"maker_site":null,"file_size_bytes":36258816,"minimum_os":"15.1","content_rating":"4+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/78/54/27/78542740-7298-32b2-d720-51cb214dfc67/00_hero.appstore.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/86/4c/5b/864c5b3f-b719-c96c-d84a-cc6def12aba3/IMG_0888.appstore.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/81/8c/7b/818c7b1a-84db-4616-6f31-1f3abac45478/IMG_0892.appstore.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2e/a8/fa/2ea8fa9c-21fa-905a-0bca-80569ca8be37/IMG_0889.appstore.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b0/8a/46/b08a4692-9818-8402-2334-8294ed1a8fac/IMG_1026_2.appstore_4.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/44/e1/6f/44e16fa4-8abd-4d92-72ef-6ddd4a83df9b/Screenshot_2026-03-26_at_20.49.15.appstore.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c2/8e/df/c28edf0c-9e21-9fe4-08bb-0b42016cc249/99_cta.appstore.png/320x480bb.jpg"],"developer_name":"MARTIN TESAR","editors_choice":false,"url":"https://apptierlist.com/apps/rezet-nervous-system-toolkit-6759931581/","api_url":"https://apptierlist.com/api/v1/apps/rezet-nervous-system-toolkit-6759931581","schema_version":"1.0","generated_at":"2026-11-14T17:19:27.293Z","data_as_of":"2026-11-14T15:21:12.738Z","description":"What feels strongest right now? Is your heart racing? Is your chest tight? Are your thoughts looping?\n\nREZET is a physiological toolkit, not a meditation app. It acts as an emergency brake for an overactive autonomic nervous system. \n\nWhen you experience acute stress, panic, or overwhelm, your biology is stuck in a sympathetic (fight-or-flight) or dorsal vagal (freeze) response. REZET provides you with the exact, science-backed respiratory protocols needed to mechanically stimulate your vagus nerve and force a physiological state shift back to baseline.\n\nNo spiritual fluff. Just clinical mechanics. Select your current somatic state, and follow the visual and haptic pacing.\n\nNEW: MEASURE VITALS\nUse the rear camera and flash for a dedicated 1-minute fingertip reading. A live camera preview helps you place your finger correctly, the measurement starts automatically once pulse lock is stable, and REZET processes the full capture window to estimate:\n\n• HRV\n• Heart rate\n• Breathing rate\n\nBreathing rate is inferred from cyclical heart rate changes during the measurement. Vitals are provided for wellness trends and self-awareness only, not diagnosis or medical monitoring.\n\nNEW: CUSTOM BREATHING PROTOCOLS\nCreate and save your own breathing protocols with custom inhale, exhale, and optional hold timings. You can choose whether a session ends by total time or by completed rounds, then restart saved custom protocols in one tap from Home.\n\nTHE PROTOCOLS:\nWe map your acute symptoms to precise respiratory ratios designed to counteract them via heart rate variability (HRV) and vagal tone manipulation.\n\n• Tachycardia (Heart Racing): 4-7-8 pacing directly stimulates the vagus nerve, utilizing breath retention to trigger a rapid parasympathetic response and lower heart rate.\n• Chest Tension: 4-4-4-4 (Box Breathing) anchors the autonomic nervous system through equal respiratory distribution, preventing hyperventilation and releasing physical constraint.\n• Racing Thoughts: Micro-varied interval pacing demands active cognitive tracking, disrupting Default Mode Network (DMN) loops.\n• Sensory Overwhelm: Extended exhalations mechanically decrease heart rate via respiratory sinus arrhythmia (RSA), signaling biological safety to the brainstem.\n• Dorsal Shutdown (Numbness): 6.0/6.0 coherent pacing gently up-regulates the system without triggering an adrenaline spike.\n• Restlessness: 5.5s Resonant Frequency synchronization maximizes HRV, bringing the cardiovascular and respiratory systems into perfect alignment to clear cognitive fog.\n\nSYSTEM FEATURES:\n• Zero Friction: No long intro videos, no mandatory sign-ups. Immediate access to physiological regulation in two taps.\n• Measure Vitals: A guided 1-minute camera reading for HRV, heart rate, and breathing rate estimates using the rear camera and flash.\n• Custom Protocols: Create, save, and restart your own breathing sessions with custom timings and time-based or round-based targets.\n• Clinical Insights: Detailed neurological and biological mechanics explaining why each protocol is effective.\n• Haptic & Visual Pacing: A high-contrast adaptive interface combined with precise haptic feedback—allowing for screen-free, eyes-closed regulation.\n• Adaptive Intensity Checkpoints: If a respiratory ratio exceeds your current CO2 tolerance, the algorithm safely down-scales the timing mid-session.\n• Dose-Dependent Sessions: Choose 1, 3, or 5-minute intervals based on your immediate physiological requirement.\n\nStop trying to think your way out of a biological response. Use your physiology to change your psychology. Download REZET to gain mechanical control of your nervous system.\n\nDisclaimer: REZET provides physiological wellness support and is not intended to be a substitute for professional medical advice, diagnosis, or treatment.","facts":{"developer_id":1867994856,"developer_url":null,"first_released":"2026-03-11T07:00:00Z","support_url":"https://lunar-snowdrop-150.notion.site/REZET-Support-31906018d7c68023a2e8c373d30ca0f7","privacy_url":"https://lunar-snowdrop-150.notion.site/REZET-Privacy-policy-31906018d7c680a5b0f1dee3b909fa6d","website_url":null,"app_version":"1.0.4","release_notes":"Voice cues guide you through each breath phase. Improved session visuals with phase-colored breathing circle, cycle progress, and session timeline. Toggle voice on/off anytime during a session.","rating_current_version":null,"rating_count_current_version":0,"star_counts":[0,0,0,0,0],"genres":["Health & Fitness","Lifestyle"],"languages":["EN"],"content_advisories":null,"device_families":["iphone","ipod"],"made_for_iphone_duo":false,"chart":null},"freshness":{"apple_read_at":"2026-11-11T23:28:13.032Z","catalog_read_at":"2026-11-13T20:22:13.472Z","reviews_checked_at":null,"summary_written_at":"2026-11-12T14:48:12.752Z","placed_at":"2026-11-11T23:53:12.959Z","scored_at":"2026-11-14T15:21:12.738Z"},"editorial":{"one_liner":"Guided breathing protocols for acute stress, plus a 1-minute fingertip camera reading that estimates HRV, heart rate.","what_is":"REZET is a nervous system toolkit that the listing describes as a physiological toolkit rather than a meditation app. It maps selected acute symptoms, such as racing heart, chest tension or racing thoughts, to breathing patterns with visual and haptic pacing. It also includes a camera-based vitals measurement and the ability to create and save custom breathing protocols.","good_for":["Heart racing or chest tightness during acute stress","Estimating HRV, heart rate and breathing rate with the rear camera","Saving custom breathing sessions with time or round targets"],"pricing":"REZET - Nervous System Toolkit is free, with no in-app purchases on the App Store.","faq":[{"q":"Is REZET a meditation app?","a":"The listing says REZET is a physiological toolkit, not a meditation app. You select your current somatic state and follow visual and haptic pacing for respiratory protocols."},{"q":"Do I need to create an account to use it?","a":"The listing says there are no mandatory sign-ups and that you get immediate access to the protocols in two taps."},{"q":"Are the vitals readings medical measurements?","a":"No. The listing says vitals are provided for wellness trends and self-awareness only, not diagnosis or medical monitoring. Breathing rate is inferred from heart rate changes during the measurement."}],"model":"claude-haiku-5-5","created_at":"2026-11-12T14:48:12.752Z"},"memberships":[{"list":"nervous-system-regulation","list_name":"nervous system regulation","list_status":"active","list_url":"https://apptierlist.com/best/nervous-system-regulation/","position":15,"tier":"D","score":56,"components":{"rating":100,"votes":40,"rank":0,"recency":84.2},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-11-11T23:53:12.959Z"},{"list":"anxiety-relief","list_name":"anxiety relief","list_status":"active","list_url":"https://apptierlist.com/best/anxiety-relief/","position":24,"tier":"D","score":56,"components":{"rating":100,"votes":40,"rank":0,"recency":84},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-11-11T23:53:12.959Z"},{"list":"stress-relief","list_name":"stress relief","list_status":"active","list_url":"https://apptierlist.com/best/stress-relief/","position":68,"tier":null,"score":56,"components":{"rating":100,"votes":40,"rank":0,"recency":84.1},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-11-11T23:53:12.959Z"},{"list":"relaxation","list_name":"relaxation","list_status":"active","list_url":"https://apptierlist.com/best/relaxation/","position":116,"tier":null,"score":56,"components":{"rating":100,"votes":40,"rank":0,"recency":84},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-11-11T23:53:12.959Z"}],"main_list":"nervous-system-regulation","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"maker":null,"history":[{"id":291272,"at":"2026-11-12T01:45:13.097Z","kind":"tier_changed","list":"nervous-system-regulation","app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","from":"F","to":"D","reason":"score 21.1 to 56.1","job":"rescore"},{"id":291269,"at":"2026-11-12T01:45:13.097Z","kind":"tier_changed","list":"anxiety-relief","app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","from":"F","to":"D","reason":"score 21.1 to 56.1","job":"rescore"},{"id":290950,"at":"2026-11-11T23:58:12.767Z","kind":"tier_changed","list":"nervous-system-regulation","app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","from":null,"to":"F","reason":"score 21.1","job":"rescore"},{"id":290936,"at":"2026-11-11T23:58:12.767Z","kind":"tier_changed","list":"anxiety-relief","app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","from":null,"to":"F","reason":"score 21.1","job":"rescore"},{"id":290931,"at":"2026-11-11T23:53:12.959Z","kind":"membership_added","list":"stress-relief","app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","from":null,"to":"active","reason":"Built to bring down acute stress in the moment with symptom-based breathing protocols and custom breathing routines.","job":"shadow"},{"id":290930,"at":"2026-11-11T23:53:12.959Z","kind":"membership_added","list":"relaxation","app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","from":null,"to":"active","reason":"secondary","job":"shadow"},{"id":290929,"at":"2026-11-11T23:53:12.959Z","kind":"membership_added","list":"nervous-system-regulation","app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","from":null,"to":"active","reason":"Described as an emergency brake for an overactive autonomic nervous system, with breathing protocols that stimulate the vagus nerve and shift out of fight-or-fl","job":"shadow"},{"id":290928,"at":"2026-11-11T23:53:12.959Z","kind":"membership_added","list":"anxiety-relief","app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","from":null,"to":"active","reason":"Aimed at acute stress, panic and overwhelm, mapping symptoms such as racing heart, tight chest and looping thoughts to breathing protocols.","job":"shadow"},{"id":290842,"at":"2026-11-11T23:28:13.032Z","kind":"app_added","list":null,"app_store_id":6759931581,"app":"rezet-nervous-system-toolkit-6759931581","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. 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