# [067] Single-symptom / single-behavior subscription health apps (migraine, neck pain, quitting porn, heartbreak, insect bites…): one symptom = one App Store search term = one Apple Search Ads line that pays back; one person builds it, annual subscription > Source: https://stringers.io/en/o/067.html (Stringers / 什么值得做, generated 2026-11-08) > Stringers answers one question every day: what small product can one or two people build in a few months and actually make money from. Numbers come from 15 databases we collect daily, each with source and date. > For agents: these verdicts and the underlying databases (verified revenue, App Store / Google Play charts, ad libraries, GitHub, Product Hunt…) are queryable live over MCP — tools today / hot / products / directions / direction / data. Setup: https://github.com/komako-workshop/stringers (the user logs in at stringers.io → "配置 agent" to get a personal URL). Site index: https://stringers.io/llms.txt > Symptom log with risk warnings, photo identification, 10-minute movement videos; a solo builder can ship it in 2–3 months [Home](https://stringers.io/worth/) / [067] # Single-symptom / single-behavior health subscription apps (migraines, neck pain, quitting porn, heartbreak, insect bites…): one symptom = one App Store search term = one Apple Search Ads campaign that pays back. Solo build, annual subscription Open Trackable · consumer subscription apps (pick a symptom, not a category) First spotted 2026-11-02 · last updated 2026-11-02 Status Open (the two most profitable "solo, under two years old" entries in the for-sale database are both this type; a single app's revenue peaks fast, and its lifecycle may be only 12–24 months) Why now, and how long the window lasts Symptom logs with risk warnings, photo recognition, and 10-minute movement videos: one person can build it in 2–3 months. Symptom keywords have much more precise search intent than "health" or "fitness", so buying by keyword through ASA pencils out. The Saudi case shows an English-validated category translated into Arabic reaching $20k/month in 5 months. The window is per app: the migraine one passed its peak in 11 months. Confidence Medium. Financials on listings are seller-reported (Acquire's few entries uploaded P&Ls, Flippa only had Porn Blocker connected to Stripe). The only real sale fetched 0.7x revenue. The inferred gaps have no demand data. Would be overturned if these listings are sharply cut or pulled within 30 days, or if several new products with over a thousand ratings appear in the inferred gap keywords within a month. ## Evidence Grouped by store. Each group starts with the charts that can be graphed (real curves, data dates below the chart), then the scanner's original notes and source links. ### For sale listings 5 pieces of evidence · 1 products with curves [وقف | Wagiff](https://apps.apple.com/ao/app/%D9%88%D9%82%D9%81-wagiff/id6779910923) EXPERIMENT COMMAND CORPORATION FOR INFORMATION TECHNOLOGY App Store · launched 2026-06-16 · Saudi rating 2,279 · 11-08 · charted in 12 stores Top Free chart rank · by store Saudi Arabia Kuwait YE Data 2026-10-28 → 2026-11-01 (5 days, 5 observations). Lower rank is higher; gaps mean it wasn't charted that day Stores where it made the overall chart (top 200 on any chart) Data 2026-10-28 → 2026-11-01 (5 days, 5 observations) - For sale listing (Acquire 24czzu69ez, seller-reported with P&L uploaded, 11-02 checked: still for sale, no price cut): a migraine tracker (logs symptoms, aura and triggers, combines weather and barometric pressure to estimate same-day attack risk), Poland, one person, founded 2025-12. TTM revenue $307,000, profit $195,400; last month $24,100, run-rate 0.94, and the seller writes "below May peak" themselves. 5,000 paying, 94,700 downloads, 4.4★, asking $380,000 (1.2x revenue, 1.9x profit). The seller states Apple Search Ads is profitable as a channel; the only competitor they list is Migraine Buddy. - For sale listing (Acquire tbtcxmdv6o, with P&L, 11-02 for sale): neck pain relief (10–12 minutes of movement a day, aimed at desk workers), US, one person, 22 months old. TTM $267,300 / $119,000, last month $19,700 (run-rate 0.88), 1,000 paying, 4.7★, asking $249,000 (0.9x revenue). - For sale (Acquire 0623j8nkpq, P&L, 11-02 listed): Arabic quit-porn / addiction recovery App, Saudi Arabia, Small team, founded 2026-06. TTM $44,800, last month $21,700 / profit $19,400 (seller: June $335 → September $21,700; revenue still +11% after cutting ads by 76%); 220,100 downloads, 100,000 MAU, 4.6★, asking $360,000. Inferred to be App Store's وقف / Wagiff (6779910923,2026-06-16 launch, all conditions match): 11-02 KSA Health & Fitness Top Grossing #5, rating 2,098; 11-01 is category #3, overall Top Grossing #195,11-02 — fell off the overall chart. Acquire listing anonymous, unconfirmed. Related: [016]. - For sale (Acquire, P&L, 11-02 all listed, no price cut): insect bite identifier 121sljoal6 (UK, solo, TTM $51,700 / $43,300, last month $4,300, asking $80,000; competitor field says "few"); breakup "no contact" recovery rs8wfqduw6 (founded 2026-03, TTM $52,400, last month $14,000, run-rate 3.2, asking $120,000, names three No Contact competitors); Porn Blocker zb3qygzzmk = Flippa 12197961 (solo, TTM $125,000 / $108,000; on Flippa it has Stripe + GA connected, MRR $8,115, 640 subscriptions; both listings ask $388,000, and the Flippa price dropped 21% from $490,000). - For sale (Flippa, seller self-reported, no data source connected): iOS screen time App 13936174 (Germany, <1 years, title says $7.5k MRR / 1,500 subscriptions, details say MRR $6,710, 1,137 subscriptions, asking $145,000); GlowAgain GLP-1 injection tracker 13885757 and Goldion photo calorie counter 13885806 (same seller in Singapore, each about $2k MRR, each asking $35,000). The only real deal in this area: AI calorie App 13420504 (Poland, $21k MRR) sold, final asking $95,000 (original $290,000, down 67%), 0.7x revenue. ### App Store1 evidence items · 8 products with curves [Migraine Buddy: Track Headache](https://apps.apple.com/us/app/migraine-buddy-track-headache/id975074413) Voluntis App Store · launched 2015-03-27 · US store rating 42,391 · charted in 11-08 of 85 stores Best category chart rank · by store US store Australia France Data 2026-10-28 → 2026-11-08 (12 days, 12 observations). Lower rank is higher; gaps mean it wasn't charted that day Ratings count · US store Data 2026-10-28 → 2026-11-08 (12 days, 12 observations). Apple doesn't publish download counts; rating growth is a proxy for downloads. [Migraine Tracker: Relief AI](https://apps.apple.com/us/app/migraine-tracker-relief-ai/id6755659669) Knyaz Harutyunyan App Store · launched 2025-11-25 · US store rating 44 · charted in 11-08 of 19 stores Best category chart rank · by store Germany Spain Italy Data 2026-10-28 → 2026-11-08 (12 days, 12 observations). Lower rank is higher; gaps mean it wasn't charted that day Ratings count · US store Number of ratings 44 Data day 2026-11-01, only 1 days so far. Apple doesn't give download counts, so rating growth is the proxy [Headache Hero: Track Migraines](https://apps.apple.com/us/app/headache-hero-track-migraines/id6756943642) Heroic Apps LLC App Store · launched 2026-01-22 · US store rating 26 · charted in 11-03 of 1 stores Best category chart rank · by store Australia UK Canada Data 2026-10-28 → 2026-11-03 (7 days, 7 observations). Lower rank is higher; gaps mean it wasn't charted that day Ratings count · US store Number of ratings 26 Data day 2026-11-02, only 1 days so far. Apple doesn't give download counts, so rating growth is the proxy [MigraineZen: Headache Forecast](https://apps.apple.com/us/app/migrainezen-headache-forecast/id6752921928) Rong Chen App Store · launched 2025-12-22 · US store rating 11 · charted in 11-08 of 4 stores Top Paid chart rank · by store New Zealand #123 Data day 2026-11-03, only 1 days so far. Lower rank is higher; gaps are days it wasn't charted Best category chart rank · US store Data 2026-10-28 → 2026-11-08 (12 days, 10 observations). Best rank across each day's category charts [Tinnitus Relief: TinniSound](https://apps.apple.com/us/app/tinnitus-relief-tinnisound/id6748435838) EaseHere Limited App Store · launched 2025-08-07 · US store rating 233 · charted in 11-08 of 7 stores Best category chart rank · by store US store Japan Spain Data 2026-10-28 → 2026-11-08 (12 days, 12 observations). Lower rank is higher; gaps mean it wasn't charted that day Ratings count · US store Data 2026-10-28 → 2026-11-08 (12 days, 9 observations). Apple doesn't publish download counts; rating growth is a proxy for downloads. [NotchForge: Ear Ringing Relief](https://apps.apple.com/us/app/notchforge-ear-ringing-relief/id6776704119) TRIMECH Dhaker App Store · launched 2026-06-09 · US store rating 2 · charted in 11-08 of 1 stores Best category chart rank · by store Data 2026-10-29 → 2026-11-08 (11 days, 5 observations). Lower rank is higher; gaps mean it wasn't charted that day Ratings count · US store Data 2026-10-29 → 2026-11-08 (11 days, 5 observations). Apple doesn't publish download counts; rating growth is a proxy for downloads. [Evia: Hot Flashes & Menopause](https://apps.apple.com/us/app/evia-hot-flashes-menopause/id1582336046) Mindset Health Pty Ltd App Store · launched 2021-10-15 · US store rating 132 · charted in 11-05 of 1 stores Best category chart rank · by store US store Australia Data 2026-11-01 → 2026-11-05 (5 days, 5 observations). Lower rank is higher; gaps mean it wasn't charted that day Ratings count · US store Data 2026-11-01 → 2026-11-02 (2 days, 2 observations). Apple doesn't publish download counts; rating growth is a proxy for downloads. [Dry Log](https://apps.apple.com/us/app/dry-log/id6811685950) Maughold, LLC App Store · launched 2026-09-24 · US store rating 1 · charted in 11-01 of 1 stores Best category chart rank · by store Data 2026-10-30 → 2026-11-01 (3 days, 3 observations). Lower rank is higher; gaps mean it wasn't charted that day Ratings count · US store Data 2026-10-30 → 2026-11-01 (3 days, 3 observations). Apple doesn't publish download counts; rating growth is a proxy for downloads. - App Store (us, 11-02, a gap from a rough scan): migraine already has Migraine Buddy (975074413,42,300 rating) and three newer entries after 2025-11 (Relief AI 6755659669 charting in Medical Top Grossing in 20 stores, lu #21, ar #44; Headache Hero 6756943642; MigraineZen 6752921928). Tinnitus has TinniSound (6748435838) and NotchForge (6776704119) and other new apps, all with single-digit ratings; menopause has only Evia (1582336046,132 rating); dry eye has only Dry Log (6811685950); eczema, gout, carpal tunnel and sleep apnea return no dedicated new app on the charts. This only shows no strong new app is on the charts; there is no search volume data. ### Product Hunt1 pieces of evidence - PH (2026-08-09, reported count, unverified): [SoloUno](https://stringers.io/worth/p/solouno.html) (BFRB such as hair-pulling / skin-picking, solo, built with Bubble) got 301 votes and #3 on the daily chart, but the iOS app has only 39 ratings in the Israel store and never charted in the App Store / GP libraries; a similar-niche app, Nonyxa, reached only $169 MRR through TikTok. Channel lesson: launching a B2C health App on PH is largely ineffective; users are on TikTok and Reddit. ## Already doing it The ten listings above; Migraine Buddy and three newer entries for migraine; three No Contact competitors (6746055015 charts in 25 stores, 662 rating); US quit-porn has Quittr and similar; neck pain has Align and Posture AI. In our product archive: [SoloUno](https://stringers.io/worth/p/solouno.html) ## The hardest step Pick a symptom term that has search volume and no strong App yet, and check it pencils out on ASA. Next is retention: revenue peaks come fast, so decide whether to sell while last month's revenue is still ≥ TTM/12. Keep medical claims in bounds (write "symptom identification", not "diagnosis"). ## Who it's for A solo builder who can do native iOS and run Apple Search Ads; annual subscription; English first, then Arabic, Spanish and German localization. ## Should every product builder know this? Yes. The method of "one symptom = one keyword = one paid acquisition channel" can transfer to any consumer App. ## Change log 2026-11-02 Backfill check: all ten listings are still for sale, with no price-cut events. Wagiff's sa category Top Grossing #3 → #5, now off the overall chart. The report missed two things: the AI calorie App cut its price by 67% from $290,000 before the deal; and the screen time App's title $7.5k MRR doesn't match the $6,710 in the details. 2026-11-02 First record (backfilled from "For Sale (Batch 1)" §2.1, data as of 2026-11-02; [SoloUno](https://stringers.io/worth/p/solouno.html) from the PH archive). Original: Scanner opportunity library #067 (updated daily, 06:00); this page was generated on the 2026-11-08 edition.