Web Apps, ready when you are.
Choose an app for learning, exploration or project work. Each is a separate $1.99 one-time purchase, with its own workspace and Home Screen icon.
Open My Web Apps →
Battery Capacity & Lifetime
Explore battery runtime with the original Peukert calculator, discharge percentages, seven exponent choices and current comparisons.
Battery Current Simulator
Calculate nominal battery capacity and recharge current with the native slider ranges, a DC system diagram and worked examples.
House Construction Explorer
Explore a house in 30 construction stages, with 3D controls, engineering drawings, schedules, bookmarks and your own notes.
Veylo — AI Learning Academy
Learn AI through ten modules, thirty lessons and seven interactive practice labs, then save your experiments in a personal portfolio.
Financial Universe
An offline financial learning terminal with sample markets, charting, bonds, option payoffs, portfolio scenarios and a private notebook.
Construction Operations
Manage project estimates, schedules, actual costs, earned value, cash flow and construction registers in one local-first workspace.
Vibe Your Device
Turn a device idea into an AI-assisted concept draft with requirements, parts, two system diagrams, layout, assembly guidance and optional source files.
Bring your own OpenAI key. API usage costs extra.
Apps FAQ — purchases, installation, recovery and AI support →