OmniCalc

OmniCalc — The All-in-One Smart Calculator

Meet OmniCalc: a beautifully designed, feature-packed calculator

built for everyone — from students and engineers to everyday users

who want more than just basic arithmetic.

Wrapped in a stunning Dark Glassmorphism interface, OmniCalc

combines the power of a scientific calculator, a multi-category

unit converter, and a suite of practical tools — all in one

elegant, fast, and completely offline app.

━━━━━━━━━━━━━━━━━━━━━━━━━

🔢 CALCULATOR — THREE MODES IN ONE

━━━━━━━━━━━━━━━━━━━━━━━━━

▸ Standard Mode

Handles everyday math with a clean, responsive keypad.

Addition, subtraction, multiplication, division — done right.

▸ Scientific Mode

Tackle advanced mathematics effortlessly.

• Trigonometry: sin, cos, tan and their inverses

• Logarithms: log (base 10) and natural log (ln)

• Power & Root: x², x³, xⁿ, √, ∛

• Constants: π (Pi), e (Euler's number)

• Full parentheses support with auto-close

▸ Programmer Mode

Built for developers and computer science enthusiasts.

• Live base conversion: HEX, DEC, OCT, BIN simultaneously

• Bitwise operations: AND, OR, XOR, NOT

• Bit shifting: LSH (Left Shift), RSH (Right Shift)

• Hexadecimal digit input: A, B, C, D, E, F

━━━━━━━━━━━━━━━━━━━━━━━━━

🔄 UNIT CONVERTER — 5 CATEGORIES

━━━━━━━━━━━━━━━━━━━━━━━━━

Convert between units instantly with our smart search engine.

Just type a unit name and the list filters in real time.

• Length — Meter, Kilometer, Mile, Inch, Foot and more

• Weight — Kilogram, Pound, Ounce, Milligram and more

• Volume — Liter, Milliliter, Gallon, Cubic Meter and more

• Area — Square Meter, Hectare, Acre, Decare and more

• Temperature — Celsius, Fahrenheit, Kelvin

━━━━━━━━━━━━━━━━━━━━━━━━━

🛠️ TOOLS — PRACTICAL EVERYDAY CALCULATORS

━━━━━━━━━━━━━━━━━━━━━━━━━

▸ Date Calculator

Select any two dates using the native calendar picker and

instantly know the exact number of days between them.

Perfect for countdowns, deadlines, and anniversaries.

▸ Discount Calculator

Enter an original price and slide the discount percentage.

See your final price and how much you save — instantly,

no equals button needed.

▸ Fuel Calculator

Plan any road trip with ease. Enter distance, fuel efficiency

(L/100km), and price per liter to calculate your exact trip

cost and total fuel requirement.

━━━━━━━━━━━━━━━━━━━━━━━━━

📜 CALCULATION HISTORY

━━━━━━━━━━━━━━━━━━━━━━━━━

Every calculation is automatically saved to a local database,

grouped by Today, Yesterday, and older dates. Review your past

work anytime — and clear it all with one tap from Settings.

━━━━━━━━━━━━━━━━━━━━━━━━━

⚙️ SETTINGS & CUSTOMIZATION

━━━━━━━━━━━━━━━━━━━━━━━━━

• Toggle Haptic Feedback on/off for keypad presses

• Clear your entire calculation history securely

• About section with app version information

━━━━━━━━━━━━━━━━━━━━━━━━━

🔒 PRIVACY — 100% OFFLINE

━━━━━━━━━━━━━━━━━━━━━━━━━

OmniCalc works entirely offline. No account required.

No ads. No tracking. No internet access needed.

Your data stays on your device — always.

━━━━━━━━━━━━━━━━━━━━━━━━━

✨ WHY OMNICALC?

━━━━━━━━━━━━━━━━━━━━━━━━━

✔ Beautiful Dark Glassmorphism UI

✔ Three calculator modes in one app

✔ Smart unit converter with search

✔ Four practical daily-use tools

✔ Persistent calculation history

✔ Fully offline & privacy-friendly

✔ Built with Flutter for smooth performance

✔ No ads, no subscriptions, completely free

OmniCalc is the last calculator app you will ever need.

Download it today and experience the difference.