PairMyKey vs builDx

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builDx is a construction management app for contractors, site managers, and builders - with a construction calculator, cost estimator, and site diary built in. Your data never touches our servers. It lives on your device and your Drive. CONSTRUCTION CALCULATOR & ESTIMATOR Generate detailed cost estimates for any project. Choose South Asia (Nepal/India) or Global (USA/Australia/Europe) modes. Break costs down by material, labour, and phase - then export a professional PDF to share with your client. Economy, Standard, and Premium tiers built in. MATERIAL & LABOUR COST TRACKER Log every material purchase and labour expense against a vendor. Track unit costs, quantities, and totals. Know your real building cost at every stage - not just at the end when it is too late. VENDOR & BUDGET MANAGEMENT Build your vendor list, manage advance payments, and track outstanding balances. Full financial report per vendor - expenses vs. paid vs. balance due. SITE DIARY & PHOTO LOG Record daily site updates with photos. A timestamped construction log for milestones, delays, decisions, and progress shots. DRAWINGS & DOCUMENT STORE Attach floor plans, elevations, structural drawings, electrical layouts, and PDFs to your project. All files, one place. WORKS WITHOUT INTERNET No wi-fi on site? builDx runs fully offline on your device. Everything is stored locally. When you are connected, sync to your own Google Drive with one tap. YOUR DATA NEVER LEAVES YOUR HANDS There is no builDx server. No account required to start. Your project data syncs to your personal Google Drive - a folder you own, control, and can access anytime, even without the app. We never see your data. Built for the people who actually build things.