Calclin vs MultiCalc

A calculator memo app with history that keeps your calculation process visible like a paper roll. Switch between calculator input and formula input to handle everything from everyday math to calculations you want to keep as records. ■ Calculator mode and Formula mode Calculator mode evaluates left to right (5+5×2=20). Formula mode respects operator precedence (5+5×2=15) and supports parentheses and roots. Switch anytime from the input row, changing the calculation style without leaving the active input area. ■ Paper-roll style history Expressions and answers stay on the roll from the top, so you can see the flow of your calculation at a glance. Subtle side lines and top shading keep each frame easy to distinguish, even with multiple rolls. In calculator mode, a running total can be shown while you type. ■ Edit rows and add notes In calculator mode, tap any roll row to edit and recalculate. Add a note to any history entry. Swipe left to delete; swipe right to add a memo, copy the expression, or copy the answer. ■ PDF export Export a calculation roll as a PDF whenever you want to keep it. ■ Use multiple calculators side by side Up to a triple deck. Add or remove panels with the [+][−] header buttons, swipe or tap to switch, and double-tap to toggle between 1-panel and 2-panel views. ■ Unit-aware calculations Calculate with units of length, area, volume, and weight. Press a different unit key to change only the unit, or press the same unit key again to convert the number. Tap an underlined unit to pick from the conversion list. ■ TAX+ and TAX− keys Add tax to, or remove tax from, the value you are entering or the answer you just calculated. Set up to three tax rates; each key shows its rate. ■ Customizable keyboard Long-press any key to define it, and merge keys vertically or horizontally to create larger keys. Switch between 5 layouts (30 keys each), and export or import your arrangement. ■ Flexible display settings Choose the decimal point and grouping symbols, the grouping style (every 3 or 4 digits, Indian style), the number of decimal digits, and the rounding mode (including round half to even). Answers are kept at full precision; rounded answers are marked with "≒", and tapping one shows every digit. Pick Auto, Light, or Dark appearance, and enlarge or reduce text size. Your settings are restored on next launch. ■ Beginner and Expert modes Beginner mode shows labels and tips for each button. Once you are comfortable, Expert mode unlocks advanced operations such as long-press key editing. The calculation engine uses C/C++ fixed-point decimal, stored internally in BCD arrays. Note: Data is not encrypted. Please do not store personal or confidential information.

MultiCalc - Multi-Instance Calculator Product Introduction MultiCalc is a revolutionary multi-mode calculator app designed to boost your calculation efficiency. Whether you’re a student, professional, or daily user, MultiCalc meets all your calculation needs. Core Features： Five Calculation Modes 1. Single Calculator Mode - Classic Apple-style calculator interface - Focused and clean, ideal for quick calculations - Supports basic operations: addition, subtraction, multiplication, division - Percentage calculation and positive/negative sign toggle - Built-in note function to record calculation processes 2. Dual Calculator Mode - Landscape display with two calculators side by side - Perfect for comparing calculation results - Differentiated by color themes (Orange, Blue) - Independent note system; each calculator can record separately - Efficiently handles scenarios requiring comparison 3. Triple Calculator Mode - Three calculators working simultaneously - Suitable for complex multi-step calculations - Three unique color themes (Orange, Blue, Yellow) - Independent operation with no interference - Improves multi-tasking efficiency 4. Quad Calculator Mode - 2x2 grid layout with four calculators running at once - Ultimate multi-task calculation experience - Four distinct color themes (Orange, Blue, Yellow, Green) - Ideal for complex financial analysis and data comparison - Independent notes for each calculator, ensuring clear records 5. Battle Mode - Innovative face-to-face calculation experience - Split-screen (top-bottom) design for two-person interaction - Top calculator rotates 180° for opposite-seat use - Perfect teaching and learning tool - Makes calculations fun and interactive Design Highlights Apple-Style Interface - Sleek and elegant black background - Smooth animation effects - Intuitive button layout - Comfortable visual experience Smart Color System - Unique color identifier for each calculator - Orange, Blue, Yellow, Green themes - Facilitates quick differentiation between calculators - Enhances visual recognition efficiency Note Function Record Anytime - Each calculator has an independent note bar - Supports up to 20 characters - Clearly records calculation purposes and results - Easy to review and reference later Use Cases： Student Learning - Multi-step math problem calculations - Compare different problem-solving methods - Battle Mode adds fun to learning - Note function records problem-solving ideas Financial Management - Simultaneous calculation for multiple accounts - Income vs. expense comparison - Budget planning and analysis - Financial data recording Work Efficiency - Parallel calculations for multiple projects - Data comparison and analysis - Quick switching between calculation modes - Improves work efficiency Daily Life - Shopping price comparison calculations - Bill splitting - Discount calculations - Various daily calculation needs Why Choose MultiCalc? 1. Unique Multi-Calculator Design The only app on the market that supports up to four calculators running simultaneously, doubling your work efficiency. 2. Innovative Battle Mode Turns calculations into a fun interactive experience, suitable for teaching, learning, and entertainment. 3. Perfect Privacy Protection All data is processed locally; no information is uploaded, protecting your privacy and security. 4. Stunning User Interface Apple-style design, smooth animations, and a comfortable visual experience. 5. Powerful Feature Set Covers basic operations, percentages, positive/negative signs, and note functions—everything you need. Get Started Download MultiCalc now to experience unprecedented calculation efficiency! - Single Calculator: Focused Calculation - Dual Calculator: Result Comparison - Triple Calculator: Multi-Tasking - Quad Calculator: Ultimate Efficiency - Battle Mode: Interactive Fun MultiCalc - Make calculations more efficient, make work easier! MultiCalc: You deserve a calculator that supports multi-instance mode.