UnitConvert Pro-150+calculators & tools - Every unit. Every calculator. One app.

Hi PH! I'm Rob, a biomedical scientist from Liverpool. I built UnitConvert Pro because I kept switching between 5-6 apps for lab calculations, conversions, and dev tools. What makes this different: → 17 categories — Lab, IT, Trade, Photography, Music → 60+ real calculators, not just conversions → Searchable Periodic Table → 14 dev tools (UUID, hash, regex, JSON) → Offline, no ads, no tracking Free on Android and Windows desktop. What calculators would you add?

I'm a biomedical scientist and IT systems lead at an NHS hospital in Liverpool. My day involves neuroimmunology lab work and managing pathology IT systems — two jobs that need very different tools. I kept switching between apps: one for serial dilutions, another for unit conversions, a website for UUID generation, a calculator for mortgage comparisons. None of them talked to each other, most were full of ads, and half didn't work offline. So I built one app that does all of it. The hardest part wasn't the code — it was scope. What started as "a converter with a few calculators" turned into 17 categories, 60+ calculators, a Periodic Table, 14 developer utilities, and an egg timer (because why not). Some things I'm proud of: - Lab tools built by someone who actually uses them daily — serial dilution, molarity, sensitivity/specificity with PPV and NPV - Every calculator shows the formula, not just the answer - Dev tools that run locally — no data leaves your phone - Dark, Light, and AMOLED themes - Completely offline after install Built solo with React Native / Expo over 3 months of evenings and weekends. Free with an optional £1.99 premium unlock — no subscription, no ads, no tracking. I'd love to know: what calculators or conversions do you reach for most? I'm actively adding features and your suggestions go straight into the next update.

UnitConvert Pro-150+calculators & tools - Every unit. Every calculator. One app.

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