Best freelance income tracker for side hustlers

There are roughly 40-60 tools competing in the income tracking and freelance finance space, but most were built for either pure invoicing (Wave, FreshBooks) or personal budgeting (YNAB, Mint). The actual gap: a tool designed specifically for people with 2-5 income sources who need tax prep, income segmentation by hustle type, and real-time profitability without the bloat of full accounting software. Most existing solutions fail here because they treat side hustlers like scaled freelancers—adding complexity around projects, teams, and client management that solo creators don't need. The pain point isn't missing features; it's friction. A shipper entering this space should obsess over three things: (1) one-tap income logging that works offline, (2) automatic tax category detection trained on real side-hustle income types (Fiverr, sponsorships, consulting, products), and (3) a quarterly tax liability calculator that's actually scary-accurate. The market is growing fast—side hustle participation jumped 23% post-2020—but tools haven't evolved beyond the freelancer template. The real opportunity is building the financial nerve center for the gig economy, not another invoice generator.