Best side hustle income tracker for developers

There are roughly 40-60 general income tracking apps on the market (YNAB, Wave, Notion templates), but almost none account for the specific income patterns developers face: multiple platforms (Stripe, GitHub Sponsors, Gumroad, client invoices), irregular payment schedules, and the need to track profit margins on digital products. The common failure point is that existing tools treat all side income the same—they're designed for freelancers broadly, not makers shipping code. Most developers end up abandoning these tools within 2-3 months because they require too much manual data entry and don't surface the metrics that actually matter: runway until passive income threshold, earnings per hour on that abandoned project, or which product is worth doubling down on. The gap is real: you need something that auto-syncs with dev-specific platforms (GitHub, PayPal Developer, Stripe Connect), calculates time-to-profitability per side project, and gives you a unified dashboard showing which income stream is actually worth your effort. A founder entering this space should focus ruthlessly on the sync integrations first—that's where 80% of the pain lives—and build analytics specifically around project ROI and effort-per-dollar, not just raw income charts.