---
title: "Scientific Calculator fx-991 - Reviews, Revenue and Downloads in Pakistan | 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 — Pakistan
> 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/developer/dinh-phuc-gCU) (Vietnam)
**Category:** Education
**Rating:** 4.6/5 (135 ratings)
**Price:** Free
**Bundle ID:** dinhphuc1993.ExemplePhucnd
**Store:** Apple App Store
**Country:** Pakistan
**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/pk/app/app/id1673640297)
**AppTail Page:** [https://apptail.io/app/scientific-calculator-fx-991-aDTk/pakistan](https://apptail.io/app/scientific-calculator-fx-991-aDTk/pakistan)

## 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 Pakistan
- 5 stars: 109 (81%)
- 4 stars: 11 (8%)
- 3 stars: 7 (5%)
- 2 stars: 2 (1%)
- 1 stars: 6 (4%)

## Scientific Calculator fx-991 Reviews in Pakistan

### ****- "Features"
Please update matrices in next version its outstanding but lacks matrix functions
-- Raouf Bangash, 2025-01-14

### ***** "Extremely amazing experience-I’m love in it.❤️"
100 💯 recommended.
-- Muhammad@19, 2024-10-07

### ***-- "Split View"
I can’t use Split View with other apps otherwise I would buy this app
-- M. Asim Ali, 2024-05-26

### ***** "Best minimalist scientific calculator"
I love the minimalist design of apple’s own calculator app but it was lacking the feature i use most “natural textbook display “ this app does that and much more. It also has no in app purchases or any other bloatware and doesn’t even gather any data. Hats off to developers. It can be bit more minimalist like apples calc and a night mode would be awesome plus the landscape mode.
-- Abdulmoeed, 2024-02-01

### ***** "It would be awesome if you could a night mode"
Option to have another theme with black keys would be awesome
-- aeroengg, 2023-12-03

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

## Scientific Calculator fx-991 In-App Purchases
| Item | Price |
|------|-------|
| Yearly Premium Access | 1,200.00 Rs |
| Monthly Premium Access | 100.00 Rs |
| 6-Month Premium Membership | 700.00 Rs |

## Scientific Calculator fx-991 Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | Egypt | Education | #3 |
| Top Free | Lebanon | Education | #13 |
| Top Free | Ecuador | Education | #13 |
| Top Free | Malaysia | Education | #14 |
| Top Free | Philippines | Education | #17 |
| Top Free | Pakistan | Education | #18 |
| Top Free | Peru | Education | #18 |
| Top Free | Nigeria | Education | #20 |
| Top Free | Kuwait | Education | #22 |
| Top Free | Algeria | Education | #24 |
| Top Free | South Africa | Education | #27 |
| Top Free | Saudi Arabia | Education | #29 |
| Top Free | Argentina | Education | #31 |
| Top Free | Colombia | Education | #33 |
| Top Free | United Arab Emirates | Education | #37 |
| Top Free | Singapore | Education | #38 |
| Top Free | Vietnam | Education | #50 |
| Top Free | Chile | Education | #64 |
| Top Free | Thailand | Education | #67 |
| Top Free | United Kingdom | Education | #133 |
| Top Free | Mexico | Education | #136 |
| Top Free | New Zealand | Education | #136 |
| Top Free | Portugal | Education | #144 |
| Top Free | Israel | Education | #165 |
| Top Free | Dominican Republic | Education | #184 |
| Top Free | India | Education | #200 |
| Top Free | South Korea | Education | #207 |
| Top Free | Australia | Education | #207 |
| Top Free | Czechia | Education | #239 |
| Top Free | France | Education | #244 |
| Top Free | Indonesia | Education | #245 |
| Top Free | Italy | Education | #255 |
| Top Free | Egypt | Overall | #259 |
| Top Free | Canada | Education | #266 |
| Top Free | Ireland | Education | #266 |
| Top Free | Lebanon | Overall | #271 |
| Top Free | United States | Education | #315 |
| Top Free | Spain | Education | #358 |
| Top Free | Ecuador | Overall | #376 |
| Top Free | Poland | Education | #429 |
| Top Free | Taiwan | Education | #434 |
| Top Free | Belgium | Education | #473 |
| Top Free | Peru | Overall | #494 |
| Top Free | Hungary | Education | #497 |


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## Scientific Calculator fx-991 Available In
- [Vietnam](https://apptail.io/app/scientific-calculator-fx-991-aDTk/vietnam)
- [Egypt](https://apptail.io/app/scientific-calculator-fx-991-aDTk/egypt)
- [United States](https://apptail.io/app/scientific-calculator-fx-991-aDTk/united-states)
- [Mexico](https://apptail.io/app/scientific-calculator-fx-991-aDTk/mexico)
- [South Africa](https://apptail.io/app/scientific-calculator-fx-991-aDTk/south-africa)
- [Colombia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/colombia)
- [Peru](https://apptail.io/app/scientific-calculator-fx-991-aDTk/peru)
- [Algeria](https://apptail.io/app/scientific-calculator-fx-991-aDTk/algeria)
- [Philippines](https://apptail.io/app/scientific-calculator-fx-991-aDTk/philippines)
- [Nigeria](https://apptail.io/app/scientific-calculator-fx-991-aDTk/nigeria)
- [Ghana](https://apptail.io/app/scientific-calculator-fx-991-aDTk/ghana)
- [India](https://apptail.io/app/scientific-calculator-fx-991-aDTk/india)
- [Pakistan](https://apptail.io/app/scientific-calculator-fx-991-aDTk/pakistan)
- [Saudi Arabia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/saudi-arabia)
- [Argentina](https://apptail.io/app/scientific-calculator-fx-991-aDTk/argentina)
- [Malaysia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/malaysia)
- [Ecuador](https://apptail.io/app/scientific-calculator-fx-991-aDTk/ecuador)
- [Chile](https://apptail.io/app/scientific-calculator-fx-991-aDTk/chile)
- [Paraguay](https://apptail.io/app/scientific-calculator-fx-991-aDTk/paraguay)
- [France](https://apptail.io/app/scientific-calculator-fx-991-aDTk/france)
- [Brazil](https://apptail.io/app/scientific-calculator-fx-991-aDTk/brazil)
- [South Korea](https://apptail.io/app/scientific-calculator-fx-991-aDTk/south-korea)
- [United Arab Emirates](https://apptail.io/app/scientific-calculator-fx-991-aDTk/united-arab-emirates)
- [Thailand](https://apptail.io/app/scientific-calculator-fx-991-aDTk/thailand)
- [United Kingdom](https://apptail.io/app/scientific-calculator-fx-991-aDTk/united-kingdom)
- [China](https://apptail.io/app/scientific-calculator-fx-991-aDTk/china)
- [Spain](https://apptail.io/app/scientific-calculator-fx-991-aDTk/spain)
- [Canada](https://apptail.io/app/scientific-calculator-fx-991-aDTk/canada)
- [Singapore](https://apptail.io/app/scientific-calculator-fx-991-aDTk/singapore)
- [Nepal](https://apptail.io/app/scientific-calculator-fx-991-aDTk/nepal)
- [Senegal](https://apptail.io/app/scientific-calculator-fx-991-aDTk/senegal)
- [Kuwait](https://apptail.io/app/scientific-calculator-fx-991-aDTk/kuwait)
- [Germany](https://apptail.io/app/scientific-calculator-fx-991-aDTk/germany)
- [Australia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/australia)
- [Tunisia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/tunisia)
- [Israel](https://apptail.io/app/scientific-calculator-fx-991-aDTk/israel)
- [Sri Lanka](https://apptail.io/app/scientific-calculator-fx-991-aDTk/sri-lanka)
- [Italy](https://apptail.io/app/scientific-calculator-fx-991-aDTk/italy)
- [Indonesia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/indonesia)
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- [Russia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/russia)
- [Dominican Republic](https://apptail.io/app/scientific-calculator-fx-991-aDTk/dominican-republic)
- [Hong Kong SAR China](https://apptail.io/app/scientific-calculator-fx-991-aDTk/hong-kong)
- [Kenya](https://apptail.io/app/scientific-calculator-fx-991-aDTk/kenya)
- [Türkiye](https://apptail.io/app/scientific-calculator-fx-991-aDTk/turkey)
- [Hungary](https://apptail.io/app/scientific-calculator-fx-991-aDTk/hungary)
- [Taiwan](https://apptail.io/app/scientific-calculator-fx-991-aDTk/taiwan)
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- [Poland](https://apptail.io/app/scientific-calculator-fx-991-aDTk/poland)
- [Portugal](https://apptail.io/app/scientific-calculator-fx-991-aDTk/portugal)
- [Kazakhstan](https://apptail.io/app/scientific-calculator-fx-991-aDTk/kazakhstan)
- [Cyprus](https://apptail.io/app/scientific-calculator-fx-991-aDTk/cyprus)
- [Ukraine](https://apptail.io/app/scientific-calculator-fx-991-aDTk/ukraine)
- [New Zealand](https://apptail.io/app/scientific-calculator-fx-991-aDTk/new-zealand)
- [Ireland](https://apptail.io/app/scientific-calculator-fx-991-aDTk/ireland)
- [Jamaica](https://apptail.io/app/scientific-calculator-fx-991-aDTk/jamaica)
- [Belgium](https://apptail.io/app/scientific-calculator-fx-991-aDTk/belgium)
- [Iceland](https://apptail.io/app/scientific-calculator-fx-991-aDTk/iceland)
- [Sweden](https://apptail.io/app/scientific-calculator-fx-991-aDTk/sweden)
- [Bahrain](https://apptail.io/app/scientific-calculator-fx-991-aDTk/bahrain)
- [Finland](https://apptail.io/app/scientific-calculator-fx-991-aDTk/finland)
- [Madagascar](https://apptail.io/app/scientific-calculator-fx-991-aDTk/madagascar)
- [Macao SAR China](https://apptail.io/app/scientific-calculator-fx-991-aDTk/macau)
- [Angola](https://apptail.io/app/scientific-calculator-fx-991-aDTk/angola)
- [Armenia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/armenia)
- [Denmark](https://apptail.io/app/scientific-calculator-fx-991-aDTk/denmark)
- [Estonia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/estonia)
- [Czechia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/czechia)
- [Grenada](https://apptail.io/app/scientific-calculator-fx-991-aDTk/grenada)
- [Switzerland](https://apptail.io/app/scientific-calculator-fx-991-aDTk/switzerland)
- [Cayman Islands](https://apptail.io/app/scientific-calculator-fx-991-aDTk/cayman-islands)
- [Latvia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/latvia)
- [North Macedonia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/north-macedonia)
- [Mali](https://apptail.io/app/scientific-calculator-fx-991-aDTk/mali)
- [Malta](https://apptail.io/app/scientific-calculator-fx-991-aDTk/malta)
- [Mauritius](https://apptail.io/app/scientific-calculator-fx-991-aDTk/mauritius)
- [Belize](https://apptail.io/app/scientific-calculator-fx-991-aDTk/belize)
- [Belarus](https://apptail.io/app/scientific-calculator-fx-991-aDTk/belarus)
- [Brunei](https://apptail.io/app/scientific-calculator-fx-991-aDTk/brunei)
- [Netherlands](https://apptail.io/app/scientific-calculator-fx-991-aDTk/netherlands)
- [Norway](https://apptail.io/app/scientific-calculator-fx-991-aDTk/norway)
- [Bermuda](https://apptail.io/app/scientific-calculator-fx-991-aDTk/bermuda)
- [Azerbaijan](https://apptail.io/app/scientific-calculator-fx-991-aDTk/azerbaijan)
- [Romania](https://apptail.io/app/scientific-calculator-fx-991-aDTk/romania)
- [Slovenia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/slovenia)
- [Slovakia](https://apptail.io/app/scientific-calculator-fx-991-aDTk/slovakia)
- [Austria](https://apptail.io/app/scientific-calculator-fx-991-aDTk/austria)
- [Uzbekistan](https://apptail.io/app/scientific-calculator-fx-991-aDTk/uzbekistan)

---

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