REAL PRODUCTS. PUBLIC SOURCES.

Explore revenue-backed businesses.

Public income figures, clear source context, and business case studies for independent founders.

Read the business case studies →How we source the data ↗

Real projects86

Source-linked business profiles

Revenue disclosures86

Original metric & reporting context

Open-source projects5

Public code, different business models

Repository signals3

GitHub snapshots, not growth claims

All projects 86 Public revenue Open source

↓ Export CSV

1 project matching “Personal tracking”

☷ List ▦ Cards

Scroll the table to see every source and action, or switch to Cards.

#	Project	Category / model	Reported revenue	Evidence	GitHub ⓘ	Save and compare
01	Puff Zero Record vaping counts, personal check-ins and self-selected goals in a mobile diary. Researched profile	Health & FitnessFreemium app + weekly, monthly or annual subscriptions	$13MRR · Unspecified $Product MRR snapshot extracted from the founder's RevenueCat account on July 19, 2026. The article separately specifies June 21–July 19 for trailing activity and collected portfolio receipts.	Founder disclosureChecked Oct 20, 2026	—

Figures are source disclosures, not audited by MRRTrace. Revenue is not profit. Revenue sorting uses the selected metric and currency (default: USD MRR); other metrics follow alphabetically. GitHub stars measure repository interest, not business success.