MindSnap - Free health & productivity calculators, no signup needed

Hey Product Hunt! 👋 I built MindSnap because I was tired of calculator sites that bombard you with ads, ask you to sign up, or make you scroll past 1,500 words of SEO fluff just to get a number. So I made the opposite — 35+ free health and productivity calculators that just work. BMI, sleep cycles, calorie intake, TDEE, and more. No account. No ads. No nonsense. A few things I'm genuinely proud of: → Every tool loads in under a second → Works perfectly on mobile → Each calculator includes a proper explanation of the formula, not just the result Would love your honest feedback — what calculators are you missing? What would make this more useful for you? I read every comment and the best suggestions go straight onto the roadmap. 🙏