HomeAppsToolsCalculator OS 18Apps like Calculator OS 18 Here are some great alternatives to Calculator OS 18 by N-HStudio : Calculator ★4.2 Calculator ★4.4 Simple Calculator ★4.5 Pop-up Floating Calculator ★3.7 Calculator ++ ★4.7 Calculator App - Scientific ★4.4 Calculator Pro ★4.7 Calculator ★4.5 Graphing Calculator + Math PRO ★4.8 MathBird Calculator ★4.5 Calculator Plus with History ★4.8 Style Calculator ★4.0 Calculator: Simple Calculation ★4.4 Calculator ★4.4 Calculator : 3 in 1 ★4.5 EZ Calculator ★4.8