UnitFlip vs UnitBox Unit Converter

UnitFlip converts units instantly. Type a number, pick your units, and see the result live. No extra taps, no delays, no ads. Every conversion category is free, and the whole app is ad-free with no tracking. Built for travelers, students, cooks, and anyone who needs a fast, clean converter. ALL CATEGORIES, FREE - Length (meters, feet, inches, miles, and more) - Weight (kilograms, pounds, ounces, grams) - Temperature (Celsius, Fahrenheit, Kelvin) - Volume (liters, gallons, cups, milliliters) - Speed (km/h, mph, knots, m/s) - Time (seconds, minutes, hours, days, weeks) - Area (square meters, square feet, acres, hectares) - Digital Storage (bytes, KB, MB, GB, TB) - Cooking (cups, tablespoons, teaspoons, milliliters) - Currency (30 world currencies) - Fuel Economy (mpg, L/100km, km/L) - Pressure (psi, bar, atm, pascal) - Angle (degrees, radians, gradians) FEATURES - Live conversion as you type - Swap units with one tap - Save favorite conversion pairs - Adjustable decimal precision - Light, dark, and system appearance - Works offline (currency uses saved rates) - No ads, no tracking, no account required UNITFLIP PRO (one-time purchase) Upgrade once to unlock: - Live daily rates for 27 of the 30 currencies, with on-demand refresh (AED, SAR, and TWD use fixed reference rates) - Unlimited saved favorites Pay once, yours forever. No subscription. Questions or feedback? Reach us any time from Settings.

UnitBox converts everything length, weight, temperature, volume, area, speed, force, pressure, and energy completely offline, with every unit unlocked from the first launch. No currency conversion, no accounts, no ads, nothing to buy. Just a fast, accurate converter that works the way a converter should. WHY UNITBOX Most unit converters get expensive right when you actually need them: scientific units like Newtons get locked behind a paywall, video ads interrupt you mid-number-entry, or a permanent unlock costs more than dinner. UnitBox has none of that. Every category including Force, Pressure, and Energy is unlocked the moment you install it. NINE CATEGORIES, EVERY UNIT • Length meters, feet, miles, kilometers, and more • Weight kilograms, pounds, ounces, grams, stone, metric tons • Temperature Celsius, Fahrenheit, Kelvin • Volume liters, milliliters, gallons, fluid ounces, cups • Area square meters, square feet, acres, hectares • Speed km/h, mph, m/s, knots • Force Newtons, pound-force • Pressure Pascals, bar, PSI, atmospheres • Energy Joules, calories, kilowatt-hours BUILT FOR SPEED Type a number, tap a unit, get your answer instantly no network required, no loading spinner, no waiting on a video before you can see your conversion. UnitBox works exactly the same on a plane, underground, or with your phone in airplane mode. PRIVATE BY DESIGN UnitBox doesn't ask for an account, doesn't send your data anywhere, and doesn't need permissions it can't justify. There's nothing to sign up for and nothing to track. Everything unlocked. Nothing to buy. Just a converter.