Float Calculator

Keep a calculator within reach while you read, compare prices or work in another app. Float Calculator combines a movable calculator window, scientific functions and offline unit conversions. Use the free tools for everyday calculations, or add Float Pro to save reusable work. Everyday tools, free and ad-free - Float above other apps, move the window, resize it with matching proportions, or minimize it to a restore bubble. - Adjust whole-window opacity from 50 to 100 percent. New installations start at 65 percent opacity and a window around 20 percent of the usable screen area. - Calculate with decimal arithmetic, percentages, parentheses, powers and roots. - Use scientific functions including trigonometry, logarithms, factorials, pi and e, with degree and radian modes. - Convert length, mass, temperature, area, volume, speed, time and data units offline. - Revisit up to 500 calculations, reuse or copy results, and undo history deletions. - Choose light, dark or system appearance. Optional Float Pro: one-time purchase - Save named formulas with variables and reuse them offline. - Organize calculations into local notebooks, add notes, pin entries and search your saved work. - Save or share notebooks as CSV or Markdown using Android. There is no subscription. Floating controls, opacity, scientific functions, conversions and history stay free. Google Play shows the localized upgrade price before purchase. Privacy and access Calculations, history, formulas and notebooks stay on your device. There are no ads, analytics or Float accounts. Calculator tools work offline. Buying, restoring and verifying Pro require Google Play and an internet connection; verified Pro features remain usable offline. Purchase verification does not receive calculation or notebook content. Restore ownership with the Google Play account used for purchase. Notebooks do not sync between devices and are not restored by reinstalling, so export important work before uninstalling. Android 8.0 or newer is required. Floating mode needs permission to display over other apps; the regular calculator works without it. A visible notification lets you close the floating window. Android may hide overlays on protected screens.

Keep typing in the app underneath while Float stays open. Float requests keyboard focus only for explicit text interaction and releases it when you tap outside. Tap the calculator display to use hardware-keyboard shortcuts. Scientific tools, conversions, history and optional one-time Float Pro remain available.