Scientific Calculator fx-991

Dinh Phuc · Education

4.5 393 ratings Free

Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Aug 26, 2026
Rating ★ 4.53 → 4.54
Aug 26, 2026
New version 1.8.8 → 1.9.0

◆ Enhanced derivative feature: now supports finding the derivative expression of a function, in addition to calculating the derivative value at a specific point. ◆ Performance improvements and bug fixes.

Price & rating history · US

Reconstructed from the listing changes AppTracker has observed in this storefront, so each line starts at the first change on record.

Average rating history over the observed period. 4.53 4.54 Aug 26 17:45 Aug 27 04:50 Aug 27 15:55 Aug 28 02:59 Aug 28 14:04

Average rating

Screenshots

About

Scientific Calculator fx-991 – The Ultimate Math & Science Tool! Struggling with math problems, equations, or integrals? Need a powerful scientific calculator to solve step-by-step? With Scientific Calculator fx-991, you can calculate, graph, and find formulas instantly – making learning math, physics, and chemistry easier than ever! Key Features + Step-by-step equation solver – Enter any equation and get a detailed step-by-step solution. + Advanced scientific functions – Solve fractions, algebra, derivatives, integrals, trigonometry, and more. + Graphing mode – Visualize mathematical functions interactively. + Extensive formula library – Access key formulas for math, physics, and chemistry in seconds. + Unit converter – Quickly convert between different measurement units. + Casio fx-991 inspired interface – A familiar and intuitive experience for students. Perfect for high school and college students, engineers, and professionals in STEM fields! Who is this app for? High school students – Solve algebra, calculus, and physics problems efficiently. College & university students – Master engineering, physics, and complex math subjects. STEM professionals – Perform advanced calculations quickly and accurately. Download Scientific Calculator fx-991 now and simplify your calculations! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.

What's new · 1.9.0

◆ Enhanced derivative feature: now supports finding the derivative expression of a function, in addition to calculating the derivative value at a specific point. ◆ Performance improvements and bug fixes.

Details

DeveloperDinh Phuc
ReleasedFeb 2023
UpdatedMay 2026
Version1.9.0
Size26.9 MB
RequiresiOS 15.0 or later
Age rating4+
LanguagesAfrikaans, Albanian, Arabic, Armenian, Azerbaijani, Basque, Belarusian, Bulgarian, Catalan, Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, Galician, Georgian, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Kannada, Kazakh, Korean, Kyrgyz, Latvian, Lithuanian, Macedonian, Malay, Malayalam, Mongolian, Nepali, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Sinhala, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian, Urdu, Vietnamese, Zulu
PriceFree
Categories Education
Bundle IDdinhphuc1993.ExemplePhucnd