CALZOM: Calculator & Converter

CALZOM is an offline-first calculator, unit converter, and verified formula reference tool built for speed, accuracy, and clear step-by-step results.

Designed to work entirely without an internet connection, CALZOM provides a unified workspace for everyday math, scientific calculations, unit conversions, and reference formulas—with zero ads, no account setup, and complete data privacy.

CALCULATORS (5 MODES)
• Standard Calculator: Clean layout for daily arithmetic.
• Scientific Calculator: Trigonometric and inverse/hyperbolic functions, log/ln, square roots, exponents, degree/radian toggle, and live π and e constants.
• Percentage Calculator: Quick calculations for discounts, markups, and percentage variations.
• Date & Time Calculator: Measure duration between dates or add and subtract days.
• Tip Calculator: Calculate tip percentages, split bills across multiple people, and review exact decimal breakdowns.

UNIT CONVERTERS (13 CATEGORIES)
Convert values across 13 essential categories:
• Length, Mass, Temperature, Area, Volume, Speed, Time, Digital Storage, Angle, Pressure, Energy, Power, and Currency.
• Currency exchange rates refresh silently in the background when connected, and gracefully fall back to cached rates with a visible "as of" timestamp when offline.

VERIFIED FORMULA LIBRARY
Access 17 core formulas across 6 disciplines: Geometry, Algebra, Trigonometry, Basic Physics, Statistics & Probability, and Calculus Reference.
• Source Citations: Every formula carries a "Verified" badge linking to standardized references (such as NIST and ISO standards).
• Step-by-Step Derivations: Tap "Show the work" on calculated results to view numbered, plain-language derivation steps instead of a solitary answer.

PRODUCTIVITY & CUSTOMIZATION
• Unified Search: Find any calculator mode, converter category, or formula instantly from a single search bar.
• Favorites & History: Save frequently used tools and review your recent calculation history.
• Customization & Accessibility: Includes light and dark themes, as well as full accessibility labels for screen readers.
• Manual Language Switcher: Select your preferred language inside the app independently of system settings. Supported languages: English, Turkish, German, Spanish (Latin America), French, Hindi, Indonesian, Japanese, Portuguese (Brazil), and Russian.

PRIVACY & BETA STATUS
• No Sign-in Required: CALZOM requires no user account or login system. All history and favorites remain strictly local to your device.
• Free & Ad-Free: Currently in public beta with every feature unlocked and zero ads shown.
• Continuously Updated: CALZOM is actively developed, with regular updates introducing additional formulas, converter categories, and functional tools.