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Apps we loveDecide with physics, before you pay for simulation.A physics-informed engineering screening workspace with live workbenches that re-solve results and sensitivity curves on every keystroke, plus a Simulation Studio running real 2D finite-difference field solvers (heat conduction, potential flow, process uniformity) in the browser. Includes saved runs with baseline comparison, report exports, Gemini-backed analysis chat, and a tutorial hub — built for fast early R&D screening, not as a replacement for validated CFD, FEA, process simulation, or physical testing.Phoenix EngineEngineering

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Phoenix EngineDecide with physics, before you pay for simulation.GetOpen Source MagicPenSay what to change. Nothing else moves.GetOpen Source PrepTalkMock interviews that feel like the real thing.GetOpen Source

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AI grading for handwritten worksheets.

GradeFlowEducationGet

GradeFlow. An AI grading workspace for handwritten or typed answer sheets. Teachers set up classes, write the question paper by hand or have Gemini read it off a photo, then batch-upload student work — a whole-class PDF is split automatically by reading the name on each page. Grading runs only when asked, on the whole class or just the students you pick, with a review queue for low-confidence marks, teacher overrides, one-line corrections that re-mark an entire test, and private per-student result links for parents.

Under the hood: Next.js 16 · React 19 · JavaScript · Tailwind CSS · Prisma · PostgreSQL · Supabase · Gemini API · Vercel.

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Education

AI grading for handwritten worksheets.

GradeFlowEducation · LiveOPENOpen source

GradeFlow An AI grading workspace for handwritten or typed answer sheets. Teachers set up classes, write the question paper by hand or have Gemini read it off a photo, then batch-upload student work — a whole-class PDF is split automatically by reading the name on each page. Grading runs only when asked, on the whole class or just the students you pick, with a review queue for low-confidence marks, teacher overrides, one-line corrections that re-mark an entire test, and private per-student result links for parents.

Built with

Next.js 16
React 19
JavaScript
Tailwind CSS
Prisma
PostgreSQL
Supabase
Gemini API
Vercel

Live site Source