Dual Calculator: Split Screen

🧮 DUAL CALCULATOR: TWO CALCULATORS, ONE SCREEN 🧮

Tired of clearing your work just to run a second calculation? Dual Calculator is the split-screen calculator that lets you work on two independent calculations at the same time, with no more scribbling intermediate results on paper or retyping numbers.

Whether you are comparing prices, checking homework, balancing a budget, or debugging bitwise logic, Dual Calculator keeps everything visible and organized.

🪟 DUAL SPLIT-SCREEN CALCULATOR
✅ Two calculators in one: Calc 1 on top, Calc 2 on the bottom
✅ Tap either screen to instantly switch focus
✅ Compare prices, run separate formulas side by side, or keep a reference value on one screen while you work on the other
✅ Prefer the classic look? Switch off the top screen for a traditional single-screen calculator

📲 FLOATING PICTURE-IN-PICTURE (PiP) CALCULATOR
✅ Shrink the calculator into a compact floating window that stays on top of other apps
✅ Perfect for note-taking, web browsing, online shopping, spreadsheets, or following video tutorials
✅ True multitasking: check numbers without ever leaving what you are doing

📝 SMART CALCULATOR HISTORY
✅ Every result is tagged Calc1 or Calc2, so you always know where it came from
✅ Tap any past calculation to reuse its result in your active input
✅ History is saved even after you close or restart the app
✅ Clearing the log requires confirmation, so you never lose data by accident

🔬 3 POWERFUL CALCULATOR MODES

🔢 Standard Calculator
Fast everyday arithmetic with a clean layout and a handy percentage (%) operator.

🧪 Scientific Calculator

Square root (√), factorial (x!), logarithms (log, ln)
Trigonometry: sin, cos, tan
Exponents: x², xʸ, eˣ
Absolute value |x| and constants π and e
DEG / RAD toggle for accurate trigonometric results

💻 Programmer Calculator

Base-N keypad with A-F input
Bitwise operations: AND, OR, XOR, NOT, NAND, NOR, plus left and right shifts (>)
Tap the base header to instantly convert between HEX, OCT, and DEC

💾 64-BIT BINARY GRID FOR DEVELOPERS
✅ Tap individual bits to flip them between 0 and 1
✅ HEX, OCT, and DEC values update live as you flip
✅ A visual way to learn, debug, and work with binary, ideal for programmers, engineers, and computer science students

⚡ SMART INPUT & ERROR PREVENTION
✅ Operator overwrite: type 5 + then *, and it corrects to 5 *
✅ Blocks invalid input such as duplicate decimals (8.5.5)
✅ Silent validation: no annoying errors while you type. Clear, soft-red messages (like Division by zero or Missing “)”) appear only when you press =
✅ Smart parentheses button: closes an open bracket if one exists, otherwise opens a new one

⚙️ PERSONALIZE YOUR CALCULATOR
🎨 4 OLED dark themes: AMOLED Deep Black, Ocean Blue, Emerald Green, Midnight Purple
🔢 Decimal precision control: 0, 2, 4, 6, 8, or 10 places
➗ Digit grouping: toggle thousands separators on or off (1,234,567.89)
📳 Adjustable vibration feedback and zero-latency click sounds

✨ PREMIUM DESIGN

Glassmorphism look with soft gradient shadows and rounded squircle buttons
Edge-fading scrolling displays
Color-coded keys: Sunset Orange gradient for core operators (+, -, *, /, =), and Slate Glass with Cyan text for scientific and programmer functions, so you find the right key fast

👥 WHO IS DUAL CALCULATOR FOR?
🎓 Students: solve and verify problems side by side
💼 Professionals and shoppers: compare costs, discounts, and totals
🧑‍💻 Developers and engineers: hex, binary, and bitwise tools in your pocket
📊 Accountants and freelancers: run two sets of figures without losing either

📥 DOWNLOAD DUAL CALCULATOR TODAY
Stop switching back and forth. Get the split-screen calculator with floating PiP, scientific mode, programmer mode, and calculation history all in one lightweight app. 🚀