Keep personal context across apps to draft replies and rewrite text

Keep personal context across apps to draft replies and rewrite text targets a $600M = 10M mac prosumers x $60/yr ARPU. Rationale: estimate 10M power users on macOS who would pay for productivity subscriptions. total addressable market with medium saturation and a year-over-year growth rate of 20-35% approx, driven by broader adoption of AI assistants for writing and developer/creator tools.

Key trends driving demand: On-device privacy and local context -- users prefer assistants that keep personal data private, enabling local memory features and lower regulatory friction.; Prosumers as paid customers -- advanced individual users already pay for productivity tools and are willing to replace or add subscriptions that save daily minutes.; OS-level integrations and hotkey-driven workflows -- demand for one-key invocation inside any text field drives adoption because it minimizes friction compared to web tools.; Shift to short-term contextual memory over long-term personalization -- embeddings and short-term caches make cross-app recent-context features feasible and fast..