Smart Calc - Unit Converter

Smart Calc is a powerful all-in-one calculator app designed for everyday use. Whether you need a quick calculation, unit conversion, or live currency exchange — everything is just one tap away.

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🧮 SMART CALCULATOR
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- Standard calculator with real-time result preview
- Scientific mode — sin, cos, tan, log, ln, √, π, e, power, factorial
- Degree / Radian toggle for trigonometric calculations
- Memory functions — M+, MR, MC
- Calculation history — tap any past result to reuse it
- Auto-evaluates as you type

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🔄 UNIT CONVERTER
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Convert between 10+ unit categories instantly:
- 📏 Length — Meter, Kilometer, Mile, Foot, Inch, Centimeter
- 📐 Area — Sq Meter, Acre, Hectare, Sq Kilometer, Sq Mile
- ⚖️ Weight — Kilogram, Gram, Pound, Ounce, Ton
- 🧪 Volume — Liter, Milliliter, Gallon, Cubic Meter
- 🌡️ Temperature — Celsius, Fahrenheit, Kelvin
- 💨 Speed — M/s, Km/h, Mph, Knot
- ⚡ Power — Watt, Kilowatt, Horsepower
- 🔩 Pressure — Pascal, Bar, PSI, Atm
- 🔢 Number System — Decimal, Binary, Octal, Hexadecimal

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💱 LIVE CURRENCY CONVERTER
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- 30+ world currencies supported — USD, INR, EUR, GBP, JPY, AUD, CAD, CNY, and more
- Live exchange rates updated daily from ECB
- Smart daily cache — fetches once per day, works offline after that
- Instantly switch base currency

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📊 INTEREST CALCULATOR
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- Calculate interest amount and total payable instantly
- Custom interest rate input
- Preset rates for quick selection

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🎨 PERSONALIZE YOUR APP
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- 5 accent color themes — Purple, Blue, Green, Teal, Gold
- Pure OLED black background — saves battery on AMOLED screens
- Haptic feedback toggle
- Adjustable decimal precision (0–10 places)

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✨ WHY SMART CALC?
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✔ No ads, no clutter
✔ Blazing fast — instant calculations
✔ Clean minimal design
✔ Works offline (except live currency updates)
✔ Lightweight & battery friendly

Download Smart Calc today — the only calculator app you'll ever need.