늘 만능도구 - 생활 유틸리티

You don't need 18 apps. One is enough.

The Universal Tool replaces the clutter of single-purpose utility apps with a single set of 18 essential tools. All tools launch instantly, work offline, and make the most of your smartphone's built-in sensors.

[ Calculation Tools ]

Engineering Calculator -- A full-featured calculator that handles not only basic arithmetic but also trigonometry, logarithms, exponents, and parentheses operations. No ads interrupt calculations.

Unit Converter -- Converts units across 17 categories, including length, weight, temperature, speed, area, volume, pressure, energy, and data capacity. Supports the metric and imperial systems, as well as traditional Korean units (Pyeong, Geun, etc.).

Currency Converter -- Instantly converts to real-time exchange rates for major world currencies. Essential for travelers and overseas online shoppers.

Tip/Split the Bill Calculator -- Calculates the tip for your meal and distributes it equally among the group. Adjust the tip ratio with the slider, and the amount per person updates in real-time.

Date Calculator -- Calculates the remaining days to a specific date, the number of days between two dates, and calculates days for adding or subtracting from a date. Your own D-Day tracker.

[ Scan & Generate ]

QR Code Scanner -- Instantly recognizes QR codes or barcodes when you point your camera at them. Scan history is automatically saved, so you never miss a link or contact.

QR Code Generator -- Creates scannable codes from URLs, text, contact cards, Wi-Fi connection information, and more. Share immediately or save as an image.

Color Extractor -- Extracts accurate colors by touching anywhere in the camera viewfinder. Displays results in HEX, RGB, and HSL formats. Essential for designers and DIY projects.

[ Sensor Tools ]

Pedometer -- Tracks steps in real-time using the device's accelerometer. Also displays distance walked and estimated calories burned.

Noise Meter -- Measures ambient noise in real-time decibels (dB). Provides both a visual gauge and a reference chart to instantly check noise levels in offices, bedrooms, or event venues.

Level -- Precisely detects surface tilt using a gyroscope. You can check the level of a table when the smartphone is placed on a flat surface, and the verticality of a picture frame when placed against a wall.

Compass -- Displays bearings in degrees (°) using a smooth rotating dial. You can switch between True North and Magnetic North, and it operates without an internet connection.

[ Everyday Utilities ]

Flashlight -- A flashlight with adjustable brightness.

Electricity Bill Calculator -- Estimates electricity bills based on the Korean progressive rate system.

Car Maintenance Calculator -- Calculates the cost of car ownership, including fuel, maintenance, and depreciation.

Random Generator -- A random number and name generator for quick draws.

Multi-Timer / Stopwatch -- A timer and stopwatch capable of recording segments (laps).

Notepad -- A quick notepad for quick text memos.

[ Why It's a Universal Tool ]

18 tools, one download, minimal storage space.

All tools work offline. Sensor-based tools (level, compass, sound meter, pedometer) utilize hardware you already own. You can find any tool with a double touch on a clean grid interface.

[ Pro Upgrade ]

Upgrading to the Pro version allows you to use all tools without ads, and new tools added in the future will be automatically unlocked.

Supports both Korean and English.

The Universal Tool is a Swiss Army knife that lives on your home screen. Once installed, you will find yourself reaching for it more often than you expect.