Solo Dev Skipped App Analytics for Privacy, Lost Two Months of Useful Data

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A solo developer launched a niche resale app with no analytics, believing it aligned with their privacy principles, but soon found themselves unable to answer basic questions about user engagement or retention. Apple's built-in App Store analytics only capture users who opt into data sharing, making the sample size too small to be meaningful for low-volume apps. After two months of guessing, the developer added just two tracked events — when a user adds an item and when they mark it sold — providing a clear picture of real usage. Within two weeks, they identified around 140 active users, a 40% next-day return rate, and roughly one-third completing the full add-to-sell cycle. The developer concluded that minimal, privacy-respecting analytics and user privacy are not mutually exclusive, and urged other indie developers to instrument key moments before launch rather than after.

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