articles and knowledge

An MCP Toolkit review for Android: five interactive developer tools, a production readiness tracker, 60 quizzes and the full Model Context Protocol handbook, all offline with no ads or subscriptions.

A review of AI Cost Management for Android: five calculators for GPU idle waste, LLM token cost and AI unit economics, a FinOps roadmap and a 12-chapter handbook. Fully offline, no ads, on Google Play.

A review of Automotive Multimeter Guide for Android: 10 calculators, 20 guided measurements and a 12-chapter car electrical guide. Offline, no ads.

A review of Car AC and Heating Repair for Android: eight offline AC and heater tools, a Service Roadmap, a 12-chapter handbook, no ads and a one-time price.

A review of The Senior Driver's Companion for Android: a 12-chapter driving handbook, 10 practical self-check tools, a step-by-step Drive Roadmap and chapter quizzes for drivers over 65, adult children and caregivers. Fully offline, no ads, no sign-up.