Scientific calculator plus 991

Installs

47.2m

Rating

4.7

Rating count

515.2k

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
10/15/2025	515,179	4.732	47,223,920	7.4.1.484
10/14/2025	514,969	4.732	47,187,269	7.4.1.484
10/13/2025	514,843	4.912	47,152,330	7.4.1.484
10/12/2025	514,685	4.952	47,121,259	7.4.1.484
10/11/2025	514,492	4.952	47,092,415	7.4.1.484
10/10/2025	514,284	4.951	47,060,107	7.4.1.484
10/9/2025	514,063	4.951	47,024,339	7.4.1.484
10/8/2025	513,833	4.951	46,987,491	7.4.1.484
10/7/2025	513,494	4.733	46,950,166	7.4.1.484
10/6/2025	513,297	4.733	46,907,487	7.4.1.484
10/5/2025	513,100	4.732	46,880,247	7.4.1.484
10/4/2025	512,875	4.832	46,851,681	7.4.1.484
10/3/2025	512,727	4.731	46,821,485	7.4.1.484
10/2/2025	512,525	4.731	46,788,308	7.4.1.484
10/1/2025	512,312	4.731	46,750,922	7.4.1.484
9/30/2025	512,056	4.832	46,711,566	7.4.1.484
9/29/2025	511,888	4.731	46,678,940	7.4.1.484
9/28/2025	511,803	4.951	46,649,383	7.4.1.484
9/27/2025	511,594	4.951	46,620,929	7.4.1.484
9/26/2025	511,314	4.734	46,590,346	7.4.1.484
9/25/2025	511,094	4.735	46,552,618	7.4.1.484
9/24/2025	510,861	4.734	46,513,123	7.4.1.484
9/23/2025	510,637	4.733	46,474,525	7.4.1.484
9/22/2025	510,466	4.733	46,435,382	7.4.1.484
9/21/2025	510,277	4.733	46,409,053	7.4.1.484
9/20/2025	510,075	4.733	46,380,935	7.4.1.484
9/19/2025	509,858	4.732	46,349,578	7.4.1.484
9/18/2025	509,739	4.953	46,310,497	7.4.1.484
9/17/2025	509,496	4.951	46,284,422	7.4.1.484
9/16/2025	509,264	4.951	46,226,544	7.4.1.484
9/15/2025	509,064	4.951	46,184,677	7.4.1.484
9/14/2025	508,850	4.955	46,157,542	7.4.1.484
9/13/2025	508,672	4.955	46,131,422	7.4.1.484
9/12/2025	508,460	4.955	46,096,108	7.4.1.484
9/11/2025	508,098	4.733	46,058,383	7.4.1.484
9/10/2025	507,845	4.827	46,011,652	7.4.1.484
9/9/2025	507,594	4.840	45,967,417	7.4.1.484
9/8/2025	507,444	4.731	45,925,024	7.4.1.484
9/7/2025	507,361	4.945	45,894,513	7.4.1.484
9/6/2025	507,161	4.945	45,869,128	7.4.1.484
9/5/2025	506,969	4.944	45,837,325	7.4.1.484
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

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.

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