Scientific calculator plus 991

Installs

44.7m

Rating

4.9

Rating count

500k

Category	Education
Developer	LE THI KIM CUC
Price	Free
First release	5/1/2020 (5 years ago)
Version	7.3.4.969
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
7/22/2025	499,995	4.870	44,694,444	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
4/10/2025	485,242	4.934	42,771,760	N/A
4/6/2025	484,341	4.934	42,656,964	N/A
4/5/2025	483,766	4.859	42,564,999	N/A
3/10/2025	483,447	4.859	42,521,501	N/A
2/27/2025	479,109	4.867	41,837,278	N/A
2/25/2025	477,815	4.868	41,558,722	N/A
2/24/2025	477,813	4.868	41,475,731	N/A
2/20/2025	477,646	4.868	41,431,508	N/A
2/17/2025	476,415	4.871	41,233,370	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.

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