Scientific Calculator 991EX

Scientific Calculator 991EX is a natural-display scientific calculator designed for students, engineers, and technical work. Calculate and Complex modes are free. One Lifetime Pro purchase permanently unlocks ten advanced workspaces:

• Base-N
• Matrix
• Vector
• Statistics
• Distribution
• Spreadsheet
• Table
• Equation/Func
• Inequality
• Ratio

Calculate with fractions, roots, trigonometry, logarithms, calculus, constants, unit conversions, complex numbers, matrices, vectors, statistics, probability distributions, spreadsheets, function tables, equations, inequalities, and ratios. Choose natural or linear input, convert supported exact results to decimals, and use calculation history and replay without creating an account.

Calculations, settings, history, and the locally generated calculator identifier are stored on your device. The app has no ads, tracking, analytics SDKs, accounts, or backend data collection.

Lifetime Pro is a one-time, non-consumable purchase handled by Apple. Restore Purchases is available for devices using the same Apple Account.

This independent app is not affiliated with or endorsed by any calculator manufacturer.

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