Sandy Timer vs CalculatorHex

This a real sand timer app simulator. Gravity does its job... Just turn your device upside down to start the timer! Single tap the screen to change the timer options. Make sure to turn the device orientation lock Off... and turn it upside-down!

CalculatorHex is the complete hexadecimal calculator and developer toolkit — 35+ tools for hex, decimal, binary, octal, color, and encoding conversions, all running locally on your device. Whether you're a software developer, computer science student, embedded systems engineer, or just need a reliable hex converter, CalculatorHex covers every calculation you need in one app. BASE CONVERSION - Hex to Decimal, Decimal to Hex, Hex to Binary, Binary to Hex, Hex to Octal, Octal to Hex — all live and bidirectional in one screen - Hex to Signed Integer / Two's Complement calculator (8-bit, 16-bit, 32-bit, 64-bit) - Hex to Base12, Base32, Base36, and Base64 converter - Little Endian Hex to Decimal converter (byte order reversal) - Arbitrary-precision math — convert extremely large hex or decimal numbers with exact results, no rounding errors ARITHMETIC AND BITWISE CALCULATOR - Hex Arithmetic Calculator: add, subtract, multiply, and divide hex values directly - Bitwise Calculator: AND, OR, XOR, NOT operations on hex numbers - Bit Shift Calculator: left shift, right shift, unsigned right shift - Hex Compare and Diff tool with Hamming distance and bit-grid visualization - Two's Complement Calculator with step-by-step explanation - Hex CRC-32 Checksum Calculator ENCODING TOOLS - Hex to ASCII and ASCII to Hex converter - Hex to UTF-8 and UTF-8 to Hex converter - Hex to EBCDIC converter (full CP037 table) - Decimal to BCD (Binary-Coded Decimal) converter - Complete ASCII Table reference, searchable by decimal, hex, or character COLOR CONVERTER TOOLS - Hex to RGB and RGB to Hex color converter - Hex to RGBA (with alpha channel) - Hex to HSL and Hex to HSV color converter - Hex to CMYK converter - Hex to UIColor (Swift/SwiftUI code) - Hex to Tailwind CSS color name matcher - Tint and Shade generator (9-step palette) - Color Difference calculator (Delta-E) - Color Palette Generator with PDF export — complementary, triadic, analogous, monochromatic - Web-Safe Colors reference (216 colors) DEVELOPER AND PROGRAMMING TOOLS - Hex to IP Address converter - Hex to 7-Segment Display encoder - UUID / GUID v4 Generator - Hash and Checksum Calculator: MD5, SHA-1, SHA-256 - Hex-to-Int code snippet generator for C#, Python, JavaScript, and Java - Binary Prefixes converter (SI and IEC units — KB vs KiB, MB vs MiB) WHY CALCULATORHEX - 35+ calculators and converters in a single app - Fast, clean, distraction-free interface - Works fully offline once installed — no internet connection required for any calculation - Arbitrary-precision arithmetic — accurate even with very large numbers - Built for hex, binary, octal, decimal, and color work across programming, electronics, networking, and design CalculatorHex is the hex calculator, binary converter, color converter, checksum calculator, and bitwise calculator developers reach for again and again. Download now and keep every hex tool you need in your pocket. Contains ads.