Scientific calculator plus 991

Installs

45.8m

Rating

4.9

Rating count

506.8k

Category	Education
Developer	LE THI KIM CUC
Price	Free
First release	5/1/2020 (5 years ago)
Version	7.4.1.484
In-app purchases	No
Contains ads	No
Content rating	Rated for 3+
Package name	advanced.scientific.calculator.calc991.plus

View on Play Store

Core Metrics

Data Breakdown

Date	Rating Count	Average Rating	Installs	Version
9/4/2025	506,767	4.945	45,803,808	7.4.1.484
9/3/2025	506,563	4.945	45,753,794	7.4.1.484
9/2/2025	506,326	4.944	45,718,599	7.4.1.484
9/1/2025	506,128	4.945	45,678,293	7.4.1.484
8/31/2025	505,961	4.945	45,654,901	7.4.1.484
8/30/2025	505,795	4.945	45,630,281	7.4.1.484
8/29/2025	505,626	4.945	45,596,243	7.4.1.484
8/28/2025	505,450	4.944	45,545,528	7.4.1.484
8/27/2025	505,231	4.944	45,512,627	7.4.1.484
8/26/2025	505,054	4.944	45,512,627	7.4.1.484
8/25/2025	504,880	4.945	45,485,151	7.3.4.969
8/24/2025	504,722	4.944	45,461,433	7.3.4.969
8/23/2025	504,552	4.944	45,434,721	7.3.4.969
8/22/2025	504,386	4.944	45,418,870	7.3.4.969
8/21/2025	504,211	4.944	45,377,915	7.3.4.969
8/20/2025	504,049	4.944	45,350,522	7.3.4.969
8/19/2025	503,832	4.944	45,312,652	7.3.4.969
8/18/2025	503,659	4.944	45,285,781	7.3.4.969
8/17/2025	503,524	4.944	45,263,489	7.3.4.969
8/16/2025	503,408	4.944	45,242,408	7.3.4.969
8/15/2025	503,278	4.944	45,219,853	7.3.4.969
8/14/2025	503,120	4.944	45,189,061	7.3.4.969
8/13/2025	502,934	4.944	45,154,832	7.3.4.969
8/12/2025	502,778	4.944	45,130,808	7.3.4.969
8/11/2025	502,585	4.946	45,106,923	7.3.4.969
8/10/2025	502,440	4.946	45,082,861	7.3.4.969
8/9/2025	502,285	4.946	45,057,093	7.3.4.969
8/8/2025	502,159	4.946	45,030,802	7.3.4.969
8/7/2025	501,996	4.946	45,007,074	7.3.4.969
8/6/2025	501,863	4.946	44,984,338	7.3.4.969
8/5/2025	501,720	4.946	44,956,458	7.3.4.969
8/4/2025	501,553	4.944	44,930,444	7.3.4.969
8/3/2025	501,437	4.944	44,914,641	7.3.4.969
8/2/2025	501,314	4.944	44,898,664	7.3.4.969
8/1/2025	501,208	4.938	44,878,666	7.3.4.969
7/31/2025	501,093	4.938	44,855,504	7.3.4.969
7/30/2025	500,965	4.937	44,840,187	7.3.4.969
7/29/2025	500,844	4.937	44,817,579	7.3.4.969
7/28/2025	500,723	4.935	44,808,745	7.3.4.969
7/27/2025	500,632	4.935	44,788,379	7.3.4.969
7/26/2025	500,539	4.936	44,776,763	7.3.4.969
7/25/2025	500,443	4.935	44,758,435	7.3.4.969
7/24/2025	500,324	4.935	44,742,509	7.3.4.969
7/23/2025	500,180	4.935	44,726,264	7.3.4.969
7/22/2025	500,066	4.933	44,711,637	7.3.4.969
7/21/2025	499,951	4.933	44,694,444	7.3.4.969
7/20/2025	499,848	4.933	44,680,492	7.3.4.969
7/19/2025	499,771	4.935	44,674,553	7.3.4.969
7/18/2025	499,672	4.935	44,653,394	7.3.4.969
7/17/2025	499,554	4.935	44,636,564	7.3.4.969
7/16/2025	499,431	4.935	44,619,908	7.3.4.969
7/15/2025	499,309	4.935	44,599,579	7.3.4.969
7/14/2025	499,212	4.935	44,582,160	7.3.4.969
7/13/2025	499,123	4.935	44,571,410	7.3.4.969
7/12/2025	499,001	4.935	44,557,522	7.3.4.969
7/11/2025	498,886	4.935	44,544,925	7.3.4.969
7/10/2025	498,758	4.935	44,525,431	7.3.4.969
7/9/2025	498,610	4.935	44,511,891	7.3.4.969
7/8/2025	498,447	4.932	44,491,343	7.3.4.969
7/7/2025	498,285	4.931	44,464,217	7.3.4.969
7/6/2025	498,220	4.931	44,464,217	7.3.4.969
7/5/2025	498,113	4.931	44,448,996	7.3.4.969
7/4/2025	498,000	4.930	44,433,192	7.3.4.969
7/3/2025	497,891	4.930	44,413,502	7.3.4.969
7/2/2025	497,776	4.930	44,398,942	7.3.4.969
7/1/2025	497,657	4.930	44,383,488	7.3.4.969
6/30/2025	497,559	4.930	44,369,255	7.3.4.969
6/29/2025	497,480	4.939	44,353,844	7.3.4.969
6/28/2025	497,385	4.938	44,335,795	7.3.4.969
6/27/2025	497,272	4.941	44,323,429	7.3.4.969
6/26/2025	497,146	4.936	44,312,355	7.3.4.969
6/25/2025	497,013	4.936	44,284,029	7.3.4.969
6/24/2025	496,902	4.936	44,246,599	7.3.4.969
6/23/2025	496,782	4.936	44,246,599	7.3.4.969
6/22/2025	496,669	4.936	44,235,517	7.3.4.969
6/21/2025	496,567	4.936	44,221,110	7.3.4.969
6/20/2025	496,462	4.936	44,204,389	7.3.4.969
6/19/2025	496,314	4.936	44,186,890	7.3.4.969
6/18/2025	496,188	4.936	44,159,307	7.3.4.969
6/17/2025	496,054	4.936	44,145,742	7.3.4.969
6/16/2025	495,912	4.936	44,126,794	7.3.4.969
6/15/2025	495,793	4.938	44,113,050	7.3.4.969
6/14/2025	495,709	4.938	44,099,514	7.3.4.969
6/13/2025	495,601	4.938	44,084,145	7.3.4.969
6/12/2025	495,426	4.861	44,063,578	7.3.4.969
6/9/2025	495,418	4.855	44,063,578	7.3.4.969
6/8/2025	495,000	4.853	43,996,549	7.3.4.969
5/29/2025	494,869	4.938	43,983,895	N/A
5/28/2025	493,437	4.942	43,808,980	N/A
5/27/2025	493,302	4.942	43,788,612	N/A
5/24/2025	493,107	4.942	43,764,730	N/A
5/22/2025	492,602	4.942	43,700,248	N/A
5/21/2025	492,247	4.940	43,652,538	N/A
5/20/2025	492,040	4.942	43,624,440	N/A
5/19/2025	491,795	4.942	43,596,722	N/A
4/28/2025	487,883	4.805	43,104,318	N/A
4/24/2025	487,742	4.939	43,092,077	N/A
4/23/2025	486,883	4.942	42,978,866	N/A
4/22/2025	486,650	4.854	42,880,583	N/A
4/15/2025	486,516	4.939	42,880,583	N/A

Details

Scientific calculator 300 plus, 991 is the calculator for students and engineering student. Calculator 991 plus provides powerful functions in a real calculator 991 300 . It makes advanced calculator 991 become the most useful calculator for university and school.

Application includes some calculators inside:
- Basic calculator 300 plus
- Advanced calculator 115 plus
- Scientific calculator 991 
- Scientific calculator 991 plus
- Graphing calculator 84 plus

Let's see some special features:

◉ Basic calculator 300 plus and 115 plus: supports from basic mathematics to advanced math functions: percentage, powers, roots, trigonometric, logarithms calculator. Fraction calculation 991 supports convert fraction to decimal, mixed fraction and solve fractions problems.

◉ Advanced calculator 115 plus: combines of hyper calculator and simple scientific calc. This calculator is a multi-functional advanced calculator 991 with all features in one app. Such as linear algebra, calculus, complex numbers, display result in rectangular and polar coordinates, matrix and vector.

◉ Scientific calculator 991 plus: includes smart equation solver. Equation solver can solve quadratic, cubic equations, systems of equations. Caluculator solves any polynomial. Smart scientific calculator 991 has exponent calculator contains scientific calculations such as derivative, integral, square root calculation, factorial calculation, pi calculation, equation solver.

◉ Scientific calculator 991: supports calculate with infinity number of digits, prime factors, random numbers, combinations, permutations, GCD and LCM. This calculator 991ex is a real engineering simulator. Scientific calculator has features of 500 es, 500 ms, 300 es plus, 991 es plus. Calculator keyboard layout same as calculator 300 es plus, 991 ex and es plus.

◉ Graphing calculator 84 plus supports function graph, polar, parametric and implicit function. Graphing calculator 84 can draw tangent, tracing, derivative, root, min and max. It simulates for graphing caluculator 83 and t1 84, 84 plus.

◉ Integral calculator 991 plus provide powerful calculator to calculate integrate, derivative, differentiation and integration.

◉ This scientific calculator 991 includes CAS (computer algebra system), which can perform symbolic calculation.

◉ Some other features: math formula, physics formula, unit conversion, theme, font and programming.

More Apps inEducation

회독토익

Installs: 1,081Score: 4.66Ratings: 60

Price: N/A

Version: N/AReleased: 10/28/2019Last change: N/A

Wordbee

Installs: 824Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 4/18/2025Last change: N/A

Deepstash: Smarter Every Day!

Installs: 3,828,296Score: 4.70Ratings: 104,298

Price: N/A

Version: N/AReleased: 4/16/2019Last change: N/A

Baby Shark English: ABC Games

Installs: 164,496Score: 4.09Ratings: 142

Price: N/A

Version: N/AReleased: 6/27/2024Last change: N/A

Mazii: Dict. to learn Japanese

Installs: 3,725,688Score: 4.70Ratings: 90,727

Price: N/A

Version: N/AReleased: 11/5/2014Last change: N/A

말킴의 영어가 생긴 모습 클래쓰

Installs: 130Score: 5.00Ratings: 12

Price: N/A

Version: N/AReleased: 2/19/2025Last change: N/A

Ling: Learn Thai Language

Installs: 671,056Score: 4.67Ratings: 17,142

Price: N/A

Version: N/AReleased: 11/27/2017Last change: N/A

Baby Shark Jigsaw Puzzle Fun

Installs: 3,364,757Score: 3.30Ratings: 3,918

Price: N/A

Version: N/AReleased: 3/26/2014Last change: N/A

Chitchat AI: English Speaking

Installs: 48,648Score: 4.59Ratings: 1,496

Price: N/A

Version: N/AReleased: 7/7/2023Last change: N/A

9급 공무원 시험 기출문제

Installs: 316,694Score: 3.99Ratings: 820

Price: N/A

Version: N/AReleased: 1/20/2012Last change: N/A

Ameego: Your AI English Friend

Installs: 3,548Score: 5.00Ratings: 17

Price: N/A

Version: N/AReleased: 2/16/2025Last change: N/A

Blinkist: Book Summaries Daily

Installs: 19,268,489Score: 4.57Ratings: 160,239

Price: N/A

Version: N/AReleased: 8/29/2014Last change: N/A

한방에 컴활 1급 끝내기-컴퓨터활용능력 CBT 문제해설

Installs: 69,569Score: 4.76Ratings: 1,360

Price: N/A

Version: N/AReleased: 1/31/2022Last change: N/A

Santa - AI TOEIC

Installs: 2,600,303Score: 4.69Ratings: 30,378

Price: N/A

Version: N/AReleased: 6/30/2017Last change: N/A

Drops: Learn Tagalog

Installs: 331,058Score: 4.74Ratings: 12,465

Price: N/A

Version: N/AReleased: 3/1/2018Last change: N/A

Learn Korean, Hangul: HeyKorea

Installs: 2,759,778Score: 4.71Ratings: 24,700

Price: N/A

Version: N/AReleased: 12/12/2021Last change: N/A

Turbolearn - AI Note Taker

Installs: 963,650Score: 4.79Ratings: 119,615

Price: N/A

Version: N/AReleased: 8/5/2024Last change: N/A

다산E북(ebook) - 전공 기술 전자책 도서

Installs: 4,878Score: 3.14Ratings: 14

Price: N/A

Version: N/AReleased: 12/9/2024Last change: N/A

Ling – Language Learning App

Installs: 1,005,943Score: 4.63Ratings: 18,763

Price: N/A

Version: N/AReleased: 11/25/2018Last change: N/A

Pinkfong 123 Numbers: Kid Math

Installs: 3,917,260Score: 4.39Ratings: 3,516

Price: N/A

Version: N/AReleased: 3/30/2016Last change: N/A

핑크퐁 TV : 아기상어 동요동화, 단독 애니메이션

Installs: 3,214,521Score: 3.66Ratings: 4,011

Price: N/A

Version: N/AReleased: 5/22/2014Last change: N/A

형사소송법 OX -기출문제를 통한 조문,판례,이론 학습

Installs: 24,483Score: 4.82Ratings: 216

Price: N/A

Version: N/AReleased: 10/12/2018Last change: N/A

전기기능사 합격앱

Installs: 20,331Score: 4.57Ratings: 65

Price: N/A

Version: N/AReleased: 2/17/2022Last change: N/A

한본냥의 일본어 세카이 - JLPT, 제이팝, 상용한자

Installs: 103,782Score: 4.53Ratings: 438

Price: N/A

Version: N/AReleased: 11/4/2020Last change: N/A

형법 OX - 기출문제를 통한 조문, 판례, 이론 학습

Installs: 29,525Score: 4.83Ratings: 360

Price: N/A

Version: N/AReleased: 8/22/2018Last change: N/A

Saxophone Song Master

Installs: 70,105Score: 4.25Ratings: 234

Price: N/A

Version: N/AReleased: 10/21/2015Last change: N/A

한방에 조리기능사 끝내기(한식,양식,중식,일식,복어)

Installs: 38,228Score: 4.82Ratings: 764

Price: N/A

Version: N/AReleased: 8/18/2022Last change: N/A

한방에 컴활 2급 끝내기-컴퓨터활용능력 CBT 문제해설

Installs: 68,626Score: 4.76Ratings: 1,600

Price: N/A

Version: N/AReleased: 4/8/2022Last change: N/A

Wagotabi: Learn Japanese

Installs: 19,108Score: 5.00Ratings: 2,458

Price: N/A

Version: N/AReleased: 10/1/2024Last change: N/A

My First English

Installs: 188,460Score: 4.46Ratings: 317

Price: N/A

Version: N/AReleased: 9/3/2021Last change: N/A

Kahoot! Play & Create Quizzes

Installs: 87,423,385Score: 4.68Ratings: 805,022

Price: N/A

Version: N/AReleased: 11/1/2012Last change: N/A

Learn French | LingQ

Installs: 49,732Score: 0.00Ratings: 0

Price: N/A

Version: N/AReleased: 4/5/2018Last change: N/A

RealLife: Speak, Learn English

Installs: 1,441,340Score: 4.86Ratings: 21,843

Price: N/A

Version: N/AReleased: 5/14/2021Last change: N/A

Beelinguapp Language Audiobook

Installs: 6,921,127Score: 4.33Ratings: 78,746

Price: N/A

Version: N/AReleased: 9/2/2016Last change: N/A

Language Learning | Jumpspeak

Installs: 350,601Score: 3.80Ratings: 5,093

Price: N/A

Version: N/AReleased: 12/17/2020Last change: N/A

English listening daily

Installs: 4,954,369Score: 4.57Ratings: 15,063

Price: N/A

Version: N/AReleased: 10/13/2016Last change: N/A

Go back to the Home page