Scientific Calculator FX-991CW
Equation, Matrix & Math Solver
0 ratings
Free
In-App Purchases
About
Scientific Calculator FX-991CW is a capable scientific calculator for students, engineers, and technical work. It combines fast everyday calculation with structured advanced modes for complex numbers, statistics, distributions, spreadsheets, tables, equations, inequalities, base conversions, matrices, vectors, ratios, and math practice tools. Calculate and Complex modes are free. Scientific Calculator Pro unlocks the advanced modes with monthly, yearly, or lifetime access. The app is designed for direct input, readable results, local history, and quick switching between calculator workflows. It has no ads, no tracking, no accounts, and no analytics SDKs. This independently developed app is not affiliated with or endorsed by any calculator manufacturer. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://earthsensing.org/privacy/
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What's New in Scientific Calculator FX
2.0.1
August 10, 2026
Calculation history now correctly restores previous expressions and results with the Up and Down replay controls, including after clearing the screen. Recalled calculations can now be edited naturally in Calculate, Complex, and Base-N modes. History navigation is also faster and more responsive.
MoreSubscription plans
Yearly Pro
All advanced modes for one year.
$4.991 Year
1
In-App Purchases
$7.99
Lifetime Pro
All advanced modes forever.
