Natural display
Enter structured expressions and work with clear fraction, root, power, and calculus templates.
Utilities · Version 1.0 · Coming soon
Scientific Calculator 991EX
Calculate with fractions, roots, calculus, complex numbers, Base-N values, matrices, vectors, statistics, distributions, spreadsheets, tables, equations, inequalities, and ratios in a focused calculator interface.
Coming soonApp support
iPhone and iPad · iOS 17.0 or later
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Capabilities
The depth you need, kept within reach.
Twelve workspaces
Move between Calculate, Complex, Base-N, matrices, vectors, statistics, distributions, spreadsheets, tables, equations, inequalities, and ratios.
Lifetime Pro access
Calculate and Complex are free; one Lifetime Pro purchase permanently unlocks the ten advanced workspaces.
Private by design
No ads, tracking, accounts, analytics SDKs, or transmission of your calculations.
Scientific Calculator 991EX is independently developed and is not affiliated with or endorsed by any calculator manufacturer.