I manufacture precision weighing scales and now want those same physics-based calculations running inside a companion mobile app. The core requirement is a rock-solid calculation engine that applies my proprietary equations to live weight data and returns the processed values instantly on screen. The app must: • run natively on both iOS and Android • accept real-time weight readings from the scale (data feed details supplied) • route every reading through the backend equations I provide • display the converted result with zero perceptible lag Accuracy and speed come first; a simple UI is fine for the initial milestone. You’re free to choose the stack—Flutter, React Native, or fully native builds with a small Node, Python, or Java service—so long as the final binaries pass side-by-side validation against our reference calculations. Deliverables: 1. iOS and Android builds ready for TestFlight / internal testing 2. Source code with clear comments, especially around the physics module 3. Brief deployment guide so my team can tweak equations or constants later If you have prior experience connecting hardware sensors or implementing scientific formulas in mobile projects, that will help us move even faster. I’m ready to share sample data and the full set of equations as soon as we kick off.