Historical review from 2026-10-14. Current price and availability are unconfirmed; check the original marketplace.
Rock Identifier is a verified iOS app portfolio generating $373/mo in profit at effectively 100% margins, listed at a $15,000 asking price representing a 3.35x annual profit multiple. The near-100% margin is plausible for App Store subscription apps with minimal ongoing costs, and platform verification adds credibility. However, at only $373/mo in revenue, the absolute earnings base is modest, and the business age is not disclosed, making it difficult to assess trajectory or durability. The portfolio framing suggests multiple small apps rather than a single strong product, which warrants further clarification on revenue concentration.
A niche iOS utility app — including an AI-powered rock identifier — is highly reproducible at low cost. A solo founder using AI coding tools, open-source ML/vision APIs (e.g., Google Vision, Apple's CoreML), and a standard SwiftUI template could build a comparable MVP for $3K–$10K in 4–6 weeks. At $373/mo profit, the annual earnings are approximately $4,476 — meaning the $15K asking price requires roughly 3.4 years to recoup before accounting for any App Store algorithm risk or platform changes. Missing business age and user retention data further reduce confidence in the durability of that income stream. With reproducibility this low and traction evidence this limited, building is the lower-risk path for a technically capable buyer.
Cash estimate includes the AI tools, APIs and infrastructure needed for a solo founder to recreate the software. Build time is informational and lightly weighted. The verdict is driven mainly by customers, users, verified earnings, retention, distribution, brand, data and operating history.
A turn-key iOS portfolio of utility, niche tracking, and AI applications generating high-margin recurring revenue through App Store in-app subscriptions.
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Preliminary screening based on marketplace and public data. Verify all financial, legal, technical, customer, and operational claims independently before making an acquisition decision. This is not financial or legal advice.