Mantissa Scientific Calculator
Android app by Rajeshkumar Selvaraj. Education · Rajeshkumar Selvaraj
- Store rating
- Unknown
- Store rating count
- Unknown
- Download price
- Free to download
- In-app purchases
- Not listed in captured metadata
- Version
- 1.0.1
- Listing last refreshed
- 2026-09-16
View the original store listing
Store description excerpt
Mantissa is a scientific calculator built for students and engineers who need more than a keypad. Six tools in one app, no ads, and nothing to sign up for. SCIENTIFIC CALCULATOR Type a whole expression and see the answer update as you go. Brackets close themselves. Trigonometry in degrees or radians, hyperbolic functions, logs, roots, powers, factorials, memory keys and a calculation history you can tap to reuse. EXACT FRACTIONS Press a/b and one third stays one third. 1÷3 + 1÷3 gives 2/3, not 0.6666667. Answers show as mixed numbers, and fall back to decimals when there is no exact fraction. UNIT CONVERTER 117 units across 14 categories — length, mass, temperature, area, volume, speed, time, data, pressure, energy, power, force, angle and frequency. FORMULA REFERENCE 88 formulas covering algebra, geometry, trigonometry, calculus, mechanics, electricity, waves and optics, thermodynamics, chemistry, statistics and finance. Every formula lists what each symbol means, because a formula without its variables is no help in an exam. Search by name, topic or symbol. CONSTANTS LIBRARY 43 physical and mathematical constants at CODATA values — speed of light, Planck constant, Avogadro number, gas constant and more. Tap one to drop it straight into a calculation. CURRENCY CONVERTER 160 currencies, updated daily and cached so they still work offline. TIME ZONE CONVERTER 54 cities with daylight saving handled automatically. Nudge the clock forward or back to plan a call. BUILT FOR EXAMS AND HOMEWORK Physics, chemistry, maths and engineering coursework all draw on the same few dozen relationships. Mantissa keeps them a search away instead of a page-flip away, next to a calculator that can actually evaluate them. PRIVATE BY DESIGN No accounts. No adverts. No trackers. Nothing about you is collected or sent anywhere. The calculator, converters, formulas and constants all work with no network connection at all. The only time the app goes online is when you open the currency screen and it fetches exchange rates. Rates by Exchange Rate API.
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