Scientific Calculator fx-991

Name: Scientific Calculator fx-991
Rating: 4.5 (397 reviews)
Author: Dinh Phuc

By: Dinh Phuc App

Step-by-step Math Solver

Overview

Version:

1.9.0

Last updated: 2026-08-21

Features & Capabilities

Scientific Calculator fx-991 is a powerful math and science tool that delivers step-by-step solutions, graphing, and a handy formula library. It’s perfect for students and STEM professionals tackling math, physics, and chemistry problems.

Featuring a Casio fx-991 inspired interface, step-by-step equation solving, advanced functions (fractions, derivatives, integrals, trigonometry), graphing mode, unit conversion, and a broad formula library, the app helps users learn faster and work more efficiently.

User Growth & Download Statistics

App Education

By:

Dinh Phuc

Rating:

4.50

(397) 4 new ratings

Version:

1.9.0 Last updated: 2026-08-21

Version code:

890094007

Creation date:

2023-02-28

Compatible devices:

Size:

26.36MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-09-03

Compare stats and ranking:

Ranking

# 80,790 ▲ 279

Other rankings

#38 in hoja de cálculo keyword 15 ▲ 1#49 in feuilles de calcul keyword 19 ▲ 3#54 in calculator keyword 30 ▼ 15

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Dinh Phuc

Apple Apps Store

https://apps.apple.com/us/app/scientific-calculator-fx-991/id1673640297

Website:

https://hiedu.vn/

User Reviews

The latest update is neither good nor convenient at all, especially when performing a calculation and displaying the result immediately; it overrides the calculation. The older version is much better. I hope the developer fixes this problem because it's annoying.