---
title: "Scientific Calculator fx-991 - Отзывы, Доход и Загрузки приложения in Египет | Apple App Store"
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 "
---

# Scientific Calculator fx-991 — Египет
> Step-by-step Math Solver

![Scientific Calculator fx-991 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/30/69/64/306964b9-0c46-8351-48a4-7fe9a077768f/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Dinh Phuc](https://apptail.io/ru/developer/dinh-phuc-gCU) (Вьетнам)
**Category:** Education
**Rating:** 4.6/5 (532 ratings)
**Price:** Free
**Bundle ID:** dinhphuc1993.ExemplePhucnd
**Store:** Apple App Store
**Country:** Египет
**Version:** 1.8.8 (released 2026-05-23)
**Original Release:** 2023-02-28
**Languages:** English, Afrikaans, Albanian, Arabic, Armenian, Azerbaijani, Basque, Belarusian, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, Galician, Georgian, German, Greek (modern), Gujarati, Hebrew (modern), Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Kannada, Kazakh, Korean, Kirghiz, Latvian, Lithuanian, Macedonian, Malay, Malayalam, Mongolian, Nepali, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Chinese, Sinhala, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian, Urdu, Vietnamese, Zulu

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/eg/app/app/id1673640297)
**AppTail Page:** [https://apptail.io/ru/app/scientific-calculator-fx-991-aDTk/egypt](https://apptail.io/ru/app/scientific-calculator-fx-991-aDTk/egypt)

## Scientific Calculator fx-991 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): 

## Scientific Calculator fx-991 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f6/a4/ae/f6a4ae48-2798-f2f7-0de7-6f077231bd52/anh1_ios.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/43/d9/41/43d94116-8af3-5d00-0106-f3d47379f8c5/anh2_IOS.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f1/57/16/f15716e7-16bc-50ed-3297-6b9490935db7/anh3_IOS.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/26/a3/05/26a30539-bf0e-22f4-b3ce-095cb2307cfd/3.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/46/f1/7e/46f17ec0-4de1-6a0e-175b-08846db9ccc7/4.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/bb/d6/a8/bbd6a8be-0f59-cd54-58db-d62299d0b88c/en5.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/09/d8/7c/09d87c89-d36e-7c59-86fb-ea869ffe98a1/en6.png/1284x2778.png)

## Scientific Calculator fx-991 Rating Breakdown in Египет
- 5 stars: 418 (79%)
- 4 stars: 57 (11%)
- 3 stars: 20 (4%)
- 2 stars: 9 (2%)
- 1 stars: 28 (5%)

## Scientific Calculator fx-991 Reviews in Египет

### ***** "حلو"
جميل
-- علي خليل ١١١١, 2025-04-16

[View all Scientific Calculator fx-991 reviews and detailed analytics on AppTail](https://apptail.io/ru/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Scientific Calculator fx-991 In-App Purchases
| Item | Price |
|------|-------|
| Yearly Premium Access | EGP 149.99 |
| Monthly Premium Access | EGP 19.99 |
| 6-Month Premium Membership | EGP 99.99 |

## Scientific Calculator fx-991 Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Топ бесплатных | Египет | Education | #4 |
| Топ бесплатных | Эквадор | Education | #10 |
| Топ бесплатных | Филиппины | Education | #15 |
| Топ бесплатных | Ливан | Education | #15 |
| Топ бесплатных | Малайзия | Education | #15 |
| Топ бесплатных | Перу | Education | #18 |
| Топ бесплатных | Пакистан | Education | #20 |
| Топ бесплатных | Алжир | Education | #20 |
| Топ бесплатных | Нигерия | Education | #21 |
| Топ бесплатных | Южно-Африканская Республика | Education | #25 |
| Топ бесплатных | Кувейт | Education | #26 |
| Топ бесплатных | Саудовская Аравия | Education | #31 |
| Топ бесплатных | Колумбия | Education | #34 |
| Топ бесплатных | Аргентина | Education | #39 |
| Топ бесплатных | Сингапур | Education | #40 |
| Топ бесплатных | ОАЭ | Education | #42 |
| Топ бесплатных | Вьетнам | Education | #47 |
| Топ бесплатных | Чили | Education | #57 |
| Топ бесплатных | Таиланд | Education | #65 |
| Топ по доходу | Нигерия | Education | #85 |
| Топ бесплатных | Израиль | Education | #116 |
| Топ бесплатных | Мексика | Education | #152 |
| Топ бесплатных | Португалия | Education | #154 |
| Топ бесплатных | Венгрия | Education | #166 |
| Топ бесплатных | Австралия | Education | #171 |
| Топ бесплатных | Индонезия | Education | #173 |
| Топ бесплатных | Республика Корея | Education | #186 |
| Топ бесплатных | Новая Зеландия | Education | #191 |
| Топ бесплатных | Индия | Education | #203 |
| Топ бесплатных | Франция | Education | #238 |
| Топ бесплатных | Великобритания | Education | #238 |
| Топ бесплатных | Канада | Education | #268 |
| Топ бесплатных | Италия | Education | #269 |
| Топ бесплатных | Доминиканская Республика | Education | #287 |
| Топ бесплатных | Египет | Overall | #306 |
| Топ бесплатных | Испания | Education | #315 |
| Топ бесплатных | Соединенные Штаты | Education | #355 |
| Топ бесплатных | Ливан | Overall | #359 |
| Топ бесплатных | Эквадор | Overall | #359 |
| Топ бесплатных | Тайвань | Education | #377 |
| Топ бесплатных | Чехия | Education | #399 |
| Топ бесплатных | Ирландия | Education | #450 |
| Топ бесплатных | Филиппины | Overall | #467 |
| Топ бесплатных | Бельгия | Education | #471 |
| Топ бесплатных | Перу | Overall | #477 |

## Scientific Calculator fx-991 Discovered Keywords
- calculator
- scientific calculator

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---

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