The All-in-One utility app is a comprehensive tool that brings together various calculation tools and utility functions frequently needed in daily life.
Calculator

Basic Calculator: Intuitive iOS-style interface for general calculations
Memory functions (M+, M-, MR, MC) for saving and retrieving calculation values
Calculation history storage and review
Quick access to recently used calculation history

Unit Converter

Length (mm, cm, m, km, inch, ft, etc.)
Area (㎡, pyeong, square meters, etc.)
Weight (g, kg, lb, oz, etc.)
Volume (ml, L, gallon, etc.)
Temperature (Celsius, Fahrenheit, Kelvin)
Pressure (Pa, kPa, bar, etc.)
Data (bit, byte, KB, MB, GB, etc.)
Speed (km/h, m/s, mph, etc.)
Time (seconds, minutes, hours, days, weeks, months, years)
Energy (J, kJ, cal, kcal, etc.)
Favorite settings for frequently used units

Loan Calculator

Support for equal principal, equal installment, and lump-sum repayment methods
Loan simulation based on loan period, interest rate, and repayment method
Generate repayment schedule and PDF save/share function

Salary Calculator

Calculate net income based on annual or monthly salary
Automatic calculation of 4 major insurances (National Pension, Health Insurance, Long-term Care Insurance, Employment Insurance) and taxes
Tax deduction reflection based on number of dependents

Dutch Pay Calculator

Simple 1/n calculation after entering total amount
Customizable amount or ratio setting for each participant
Visual chart to check each participant's share ratio

Exchange Rate Calculator

Real-time exchange rate information for 133 countries
Favorite settings for major currencies (USD, EUR, JPY, CNY, etc.)
Quick currency conversion and calculation result storage
Calculation possible offline with recent exchange rate information

Ladder Game

Fair ladder game for matching participants with results
Visual entertainment with animation effects
Result storage and sharing function

Roulette Game

Roulette for random selection after entering participant names
Vivid animation and spinning effects
Result recording and review function

Features

Intuitive user interface that anyone can easily use
Dark mode support and clean design
Calculation result storage and sharing function
Optimized algorithms for accurate calculations
All features available for free without ads
No personal information collection, no login required
Most features available offline
Recent usage history management for quick access
Lightweight size for fast execution speed

When you need calculations in daily life, when making decisions, when converting various units, this one app is all you need. Download now and use it as a convenient life tool!