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Illia Ldh

@PreIdeaLab

The business behind the product. Revenue model, GTM, unit economics, from a PM with 5 years across retail, banking, utilities and edtech

Joined August 2021
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Photo by Illia Ldh (@PreIdeaLab)Photo by Illia Ldh (@PreIdeaLab)Photo by Illia Ldh (@PreIdeaLab)Photo by Illia Ldh (@PreIdeaLab)Photo by Illia Ldh (@PreIdeaLab)Photo by Illia Ldh (@PreIdeaLab)Photo by Illia Ldh (@PreIdeaLab)Photo by Illia Ldh (@PreIdeaLab)
App breakdown #21: Bird Sounds Identifier, a solo developer's app that names a bird from its song. ~$50K a month on the App Store. It's #2 for 'bird sound identifier', behind free Merlin. How it earns, how it finds customers, and why people stay:
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5. Retention: every bird becomes a keepsake. Each result ends in 'Add to collection'. A bird-expert chat answers how to feed or attract it, a map logs your sightings, articles teach birding.
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6. Why people like it: knowing who is singing. Of 164 recent App Store reviews (US, UK, Canada, Australia), 55 give 4-5 stars; ~8 mention learning, the garden or grandkids.
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Niche 26/50: virtual mailbox services. In 2013 two founders in home offices started renting software to pack-and-ship stores. Today Anytime Mailbox lists 2,000+ locations in 42 countries and has never scanned a letter itself. The store keeps ~$10 a box. How this niche works:
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Channels. 1 Partner stores. PostNet signed both platforms in 2017; the RSA has 7,000 stores. 2 The LLC checkout. LegalZoom bought Earth Class Mail to add mail to 1.9M subscriptions. 3 Word of mouth. Stable had 100 payers before code. 4 Review SEO, owned by rivals. 5 Ads, nobody.
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Moat: the address, not the app. Leaving means a new Form 1583, two IDs, a notary (iPostal1 charges $25) and telling the IRS, bank and state. A company box lasts as long as the company. Copyable: inbox, photos, storage, shredding, free everywhere. Not copyable: 4,250 CMRA sites.
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App breakdown #9: Glorify, a Christian devotional app backed by a16z, SoftBank and Kris Jenner. ~$90K a month in app revenue Sep 2026 4.9 stars from 101K US ratings, and 322K more in Brazil. How it earns, how it finds customers, and why people stay:
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5. Retention: a 10-minute daily ritual. Quote, passage, devotional, prayer, each one ticked off. Then 'Devotional Complete!', a day streak and a seed that grows into a tree over 10 steps. Wake Up and Wind Down reminders bring their own content, morning and night.
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6. Why people like it: it brings them closer to God. In 40 App Store reviews from the US, UK, Canada and Australia, ~15 say so, ~10 love the short daily routine and ~8 the human-voiced audio.
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App breakdown #8: GolfForever, a golf fitness app used by world No. 1 Scottie Scheffler, also an investor. ~$75K a month in app revenue (ScreensDesign est., Sep 2026), ~$100K Apr-Jul. 4.9 stars from 6.8K US ratings. How it earns, how it finds customers, and why people stay:
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3. Customers: the world No. 1 sells the plan. GolfForever is the PGA TOUR's 'Official Golf Fitness System' through 2027. Scheffler and Tom Kim invested in its $10M Series A (Jan 2024). His video plays right before the paywall, and 400+ tour pros use it.
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4. Customers: the box in the store is the ad. Onboarding asks where you bought the trainer: Dick's, Golf Galaxy, PGA Tour Superstore, a golf course, Amazon, QVC. The bar sits in 900+ retail doors (Jan 2024), and each box sends a golfer to a 30-day app trial.
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