Aurora Calculator – 991-Style – 991-style scientific calculator for Android with PROB & BASE

Summary: Aurora Calculator is an Android app combining a 991-style scientific calculator with matrix, base-N, probability, statistics, and logarithm tools. It includes 2D/3D graphing, algebra, converters, geometry, and finance modules in one offline-friendly interface without paywalls.

What it does

It integrates scientific calculations, matrix and base-N modes, probability/statistics tools, constants, memory functions, and rounding helpers alongside graphing and specialized modules for algebra, geometry, converters, and finance.

Who it's for

Users needing a comprehensive, all-in-one calculator app for scientific, statistical, graphing, and financial calculations on Android.

Why it matters

It eliminates the need to switch between multiple apps by consolidating essential calculator functions into a single, offline-friendly tool without premium restrictions.