Track numeric, time-of-day habits with simple daily logging and analytics

Track numeric, time-of-day habits with simple daily logging and analytics targets a $2.4B = 100M paying habit/wellness users x $2/mo ARPU x 12. Rationale: global smartphone users with willingness to pay for lifestyle/productivity subscriptions, modest ARPU. total addressable market with medium saturation and a year-over-year growth rate of 10% estimated growth in paid wellness/productivity subscriptions driven by subscriptions and wearables.

Key trends driving demand: Quantified self -- users increasingly track fine-grained metrics like sleep time and steps, creating need for numeric habit inputs; Subscription micro-payments -- consumers accept low monthly fees for daily-use wellbeing/productivity apps; Indie SaaS distribution -- maker platforms and niche communities enable rapid feedback and early monetization; Wearables integration -- more passive sensors increase demand for apps that can ingest numeric timeseries.