Scientific calculator plus advanced 991 calc app icon

Scientific calculator plus advanced 991 calc

Advanced scientific calculator 991 plus. Includes simulator 115 and 300 plus.

Tools for student · advanced.scientific.calculator.calc991.plus

5.0 (13 ratings) 50M+ downloads v5.4.4.229 25.1 MB Android 4.2+ PEGI 3 · Everyone

Download APK 25.1 MB All versions
  • Signature matches the Google Play version Details

At a glance

Latest version
v5.4.4.229 (20210902)
Updated
Jun 18, 2026 (4 months ago)
APK size
25.1 MB
Requires
Android 4.2+ (API 17)
CPU support
Any (no native code)
Category
Education (app)
Listed since
May 24, 2020
Permissions
8
Website
t3034-3dec2.web.app
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Scientific calculator plus advanced 991 calc is an app by Tools for student in the Education category, listed since May 2020. It has no native code, so it runs on any Android processor.

Since version 5.0.5.964, the minimum Android version rose from 4.1 to 4.2. It asks for 8 permissions, none of them sensitive. Compared with version 5.0.5.964, it adds 1 new permission (“Run at startup”) and drops 3 (“Read shared storage”, “Modify shared storage” and “Receive push notifications”). The app offers in-app purchases through Google Play.

Ratings

5.0out of 513 ratings
  • 5 ★100%
  • 4 ★0%
  • 3 ★0%
  • 2 ★0%
  • 1 ★0%

Ratings from users of the source store — not collected or verified by AAPKs.

What's new in v5.4.4.229

Improved graphing quality and performance. Solve equation up to power of 5. Improved matrix and vector UI. Fixed some problems.

Description

From the listing uploaded by “appupdater”.

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.

Version history

2 versions are listed, going back to v5.0.5.964. Since v5.4.4.229 it requires Android 4.2+.

v5.4.4.229 LATEST Jun 18, 2026 25.1 MB TRUSTED v5.0.5.964 Jun 28, 2026 23.8 MB TRUSTED

All 2 versions

Scientific calculator plus advanced 991 calc among popular Education apps

Scientific calculator plus advanced 991 calc is one of the 36 most downloaded apps in our Education category.

AppRatingDownloadsDownload size
Lingokids - English Learning for Kids 4.2 (25) 50M+ 68.1 MB + 89.7 MB data
Minecraft: Education Edition 4.2 (335) 50M+ –
Scientific calculator plus advanced 991 calc (this app) 5.0 (13) 50M+ 25.1 MB
Miga Town: My World 3.6 (246) 50M+ 50.8 MB + 2 MB data
Toca Hair Salon 4 3.4 (49) 50M+ –

Apps listed next to it in our Education ranking by downloads. Ratings and download counts come from the source store; ratings with fewer than five votes and sizes of outdated listings aren't shown.

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Jun 18, 2026.
  • Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
  • Same certificate as the other version checked

Store checks and file details

  • Developer signature not checked yet Jun 18, 2026
  • Validated against Google Play Jun 18, 2026
  • Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
  • Signing certificate (SHA-1)84:D7:1A:38:34:4E:15:F1:BD:49:B0:C5:94:45:43:2D:0D:56:5E:6A
  • File MD5c2aad804338bb54a34b64bd1297ba93c
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (8)

Scientific calculator plus advanced 991 calc requests 8 permissions, none of them sensitive.

Required hardware & features

Scientific calculator plus advanced 991 calc APK: questions and answers

Is there a version of Scientific calculator plus advanced 991 calc for older Android phones?

The current version needs Android 4.2 or later. Version 5.0.5.964 is the newest listed build that installs on Android 4.1 and later. Get version 5.0.5.964 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is Scientific calculator plus advanced 991 calc free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Scientific calculator plus advanced 991 calc APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is c2aad804338bb54a34b64bd1297ba93c.

Tags

advanced scientific calculator calc991 plus education calces

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