Scientific Calculator fx-991
Scientific Calculator fx-991 Summary
Scientific Calculator fx-991 is a ad-supported, with in-app purchases iOS app in Education by Dinh Phuc. Released in Feb 2023 (3 years ago). It has 387 ratings with a 4.61★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 956 monthly active users and generates around $<10K monthly revenue (56% IAP / 44% ads). Store metadata: updated Mar 15, 2026, version 67.
Recent activity: 4.00 new ratings this week View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Mar 4, 2026.
Store info: Last updated on App Store on Mar 15, 2026 (version 67).
Scientific Calculator fx-991 was last scanned for SDKs 2026-03-04. Below is the overview of third party companies detected in the app. The full list of raw SDKs, app permissions and unknown SDKs is available here.
Google4.61★
Ratings: 387
Screenshots
App Description
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/.