| 1. ScentLog: Fragrance Wardrobe Journal |
$2k-$5k/mo
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87/100 · Highly approachable · collector utility · freemium with unlock · niche community
Perfume collectors who rotate bottles daily and track wear, projection, and longevity. r/fragrance daily wear threads, Fragrantica collection profiles, perfume TikTok
The pain: Collectors keep bottle inventories in spreadsheets and want a phone-native log of what they wore, when, and how it performed Why now: Lock Screen widgets can surface 'today's scent' automatically, turning a manual habit into a one-tap ritual
How to build
Fast MVP: Bottle photo library, daily wear log with notes, collection grid, Lock Screen widget showing today's pick
Monetization: freemium with unlock
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How to ship
Distribution wedge: Demo posts in r/fragrance and Fragrantica forums; App Store SEO for 'perfume collection tracker'
Signals: r/fragrance daily wear megathreads · Fragrantica collection profile pages (reddit, forum)
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Proof: r/fragrance's daily 'what are you wearing today' thread regularly draws hundreds of replies with bottle photos
Portfolio fit: Adds a collector-utility slot with low ongoing maintenance next to other niche trackers
| “Log every bottle you own and every spray you wear, one tap from your Lock Screen.” |
Why this is approachable: Simple photo-log CRUD app with a widget, easy for a solo builder in a few weeks
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| 2. TarotSpread: Daily Reading Ritual Journal |
$2k-$6k/mo
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84/100 · Approachable with focus · ritual / habit · annual membership · creator-led
Tarot readers who do daily draws and journal interpretations. TikTok #tarottok community, witchy/spiritual creator followers
The pain: Readers journal daily draws on paper or Notes and want structured spread templates with streak tracking Why now: A Lock Screen widget for the day's card plus a push reminder fits the daily ritual perfectly
How to build
Fast MVP: Card library with meanings, 3-card and Celtic cross spread templates, daily draw widget, tagged journal entries
Monetization: annual membership
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How to ship
Distribution wedge: Creator-led demos with tarot TikTok accounts showing the daily pull widget
Signals: #tarottok daily draw video trend · tarot creator journaling prompt templates (tiktok, forum)
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Proof: #tarottok daily card pull videos regularly rack up millions of views with journaling prompts in captions
Portfolio fit: Ritual/habit niche rounds out the portfolio's lifestyle-subculture coverage
| “Pull your card, journal the meaning, keep the streak. Tarot, on your Lock Screen.” |
Why this is approachable: Content-driven app with a widget hook, straightforward to build with a bundled card database
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| 3. CrateDig: Vinyl Session Log |
$1k-$3k/mo
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83/100 · Approachable with focus · collector utility · one-time + IAP · niche community
Vinyl record collectors who dig at stores and swap meets. r/vinyl, Discogs power users, record store day regulars
The pain: Collectors juggle a Discogs wantlist with in-store digging and need a quick offline log of finds, price paid, and condition Why now: Offline-first photo logging fits basement record stores with no wifi and no Discogs signal
How to build
Fast MVP: Photo-based find log, wantlist checklist, price-paid tracker, simple spend/genre stats
Monetization: one-time + IAP
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How to ship
Distribution wedge: Demo in vinyl collector Discords and Discogs forums; App Store keyword 'vinyl collection log'
Signals: r/vinyl daily haul threads · Discogs wantlist spreadsheets (reddit, forum)
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Proof: r/vinyl posts daily 'haul' threads and Discogs collection pages show heavy manual cataloging
Portfolio fit: Low-maintenance collector utility that complements physical-hobby apps in the portfolio
| “Snap the sleeve, log the price, check the wantlist. Crate digging made for your pocket.” |
Why this is approachable: Straightforward photo log and checklist app, no complex backend needed
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| 4. SendPyramid: Bouldering Grade Tracker |
$2k-$5k/mo
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82/100 · Approachable with focus · practice companion · paid subscription · TikTok demos
Gym boulderers tracking V-scale progression session by session. r/bouldering, climbing gym TikTok, indoor climbing Discords
The pain: Climbers screenshot problems or jot grades in Notes and want an automatic visual pyramid of sends by difficulty Why now: Camera capture plus an Apple Watch complication makes mid-session logging frictionless between climbs
How to build
Fast MVP: Log climb with grade/photo/attempts, auto-generated grade pyramid, session timer, watch complication for quick entry
Monetization: paid subscription
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How to ship
Distribution wedge: TikTok demo showing a pyramid filling in live after a climbing session
Signals: climbing gym send-clip trend · r/bouldering grade pyramid spreadsheets (tiktok, reddit)
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Proof: Climbing TikTok is full of 'send' clips and hand-drawn grade pyramid spreadsheets shared in r/bouldering
Portfolio fit: Practice-companion slot pairs well with other sport-specific micro-trackers
| “Every send builds your pyramid. Log it in three taps between climbs.” |
Why this is approachable: Core loop is a log-and-chart app plus watch complication, a well-scoped 3-4 week build
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| 5. FeederWatch: Backyard Bird Life List |
$1k-$4k/mo
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78/100 · Approachable with focus · hobby companion · paid download · App Store SEO
Casual backyard birders who track species visiting their feeder. r/birding, backyard birding Facebook groups, feeder cam communities
The pain: Casual birders snap feeder photos and want a simple life list without a heavyweight full-ID birding app Why now: Quick photo capture plus a weekly recap widget makes a lightweight companion distinct from full ID apps
How to build
Fast MVP: Photo log with species tag, life list grid, feeder visit streak counter, weekly recap widget
Monetization: paid download
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How to ship
Distribution wedge: App Store SEO for 'backyard bird tracker' plus demo posts in birding Facebook groups
Signals: backyard birding Facebook group photo posts · r/birding feeder identification threads (reddit, app-store-review)
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Proof: Backyard birding Facebook groups post daily 'guess this bird' photos from feeder visitors
Portfolio fit: Hobby-companion/collector slot pairs naturally with existing outdoor-tracking apps
| “Every visitor to your feeder, logged and listed for good.” |
Why this is approachable: Simple photo-tag-list app, no ML ID required for MVP, easy to scope
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| 6. ColdPlungeAR: Ice Bath Timer Mirror |
$1k-$4k/mo
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78/100 · Approachable with focus · sensor / camera utility · paid subscription · TikTok demos
Cold exposure enthusiasts who film their plunge sessions for social accountability. Wim Hof method Facebook groups, cold plunge TikTok, ice bath owner communities
The pain: Plungers prop up a phone to time and film sessions but manually track duration, water temp, and breathing rounds afterward Why now: Camera plus on-screen AR overlay timer turns the propped-phone habit into a single-purpose recording tool
How to build
Fast MVP: Camera view with overlay timer and temp entry, session history log, breathing round countdown, auto-save clip
Monetization: paid subscription
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How to ship
Distribution wedge: TikTok demo of the AR overlay timer during an actual plunge session
Signals: cold plunge TikTok phone-propped stopwatch clips · Wim Hof Facebook group session logs (tiktok, facebook-group)
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Proof: Cold plunge TikTok clips consistently show a phone propped against the tub with a stopwatch app running
Portfolio fit: Sensor/camera one-feature niche adds variety alongside tracking-heavy apps in the portfolio
| “Prop your phone, hit start, plunge. Your timer overlay does the rest.” |
Why this is approachable: Camera overlay plus timer is a well-scoped single-feature build for a solo iOS developer
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| 7. AxeLeague: Throwing Night Scorer |
$1k-$3k/mo
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77/100 · Approachable with focus · ritual / habit · one-time + IAP · niche community
Recreational axe throwing friend groups tracking scores across venue visits. Axe throwing venue Facebook groups, local league regulars
The pain: Friend groups score axe throwing nights on paper scorecards or phone notes and want quick shared scoring Why now: A pass-the-phone scoring UI fits a single social night out and demos in one session
How to build
Fast MVP: Quick score entry per round, running group leaderboard, session history, simple bracket generator
Monetization: one-time + IAP
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How to ship
Distribution wedge: QR flyers and demos at local axe throwing venues via niche Facebook groups
Signals: axe throwing venue Facebook league standings posts · regulars sharing scorecard photos (facebook-group)
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Proof: Axe throwing venues post league standings and score screenshots in local Facebook groups
Portfolio fit: Social micro-game slot with a fast, low-complexity build for portfolio velocity
| “Pass the phone, not the scorecard. League night, tallied instantly.” |
Why this is approachable: Small scoring app with local pass-the-phone UX, very fast to prototype
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