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Android Apps > Education > Lisa's equation solver
Lisa's equation solver icon

Lisa's equation solver

0.9.7t
Harnisch Gesellschaft m.b.H.
0.00
0 reviews
100,000+
Downloads
Free

Solve quadratic / cubic / quartic equations and systems of linear equations

Lisa's equation solver Screenshot 1 of 5
Lisa's equation solver Screenshot 2 of 5
Lisa's equation solver Screenshot 3 of 5
Lisa's equation solver Screenshot 4 of 5
Lisa's equation solver Screenshot 5 of 5
Screenshots by Harnisch Gesellschaft m.b.H., from the Google Play listing
View on Google Play

AppBrain's verdict

Established
Installs
130 thousand
Last updated
August 8, 2026
Ads
Contains ads
Size
13.4 MB

Lisa's equation solver has 130 thousand installs. It doesn't have enough ratings yet to judge what users think.

Download on Google Play

User feedback

Ratings and reviews on Google Play

Comments on Lisa's equation solver for Android

★★★★☆ wasi shaikh · May 1, 2015
Nice app Please add option to show answers in fraction
★☆☆☆☆ Graeme Vetterlein · Sep 21, 2021
Sadly fails to open.... I guess it's crashing on startup

Store listing

By Harnisch Gesellschaft m.b.H., from Google Play
Description by Harnisch Gesellschaft m.b.H. Written by the developer, not by AppBrain. Click to read.
Small tool to solve:
- Quadratic equations
- Cubic equations
- Biquadratic equations
- Quartic equations
- Systems of 2 to 5 linear equations

Recent changes:
★ Basic support for Android 16

Safety and technology

Found in the app by AppBrain
Ads
Contains ads
Price
Free
Libraries
14
App size
13.4 MB
Needs Android
7.0+
Content rating
Everyone

Technologies used by Lisa's equation solver

14 permissions · 14 libraries
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
0.9.7t
Launched
January 2015
  • Aug 8, 2026UpdateVersion 0.9.7t
  • Sep 7, 2025UpdateVersion 0.9.7q
  • Jul 9, 2025UpdateVersion 0.9.7p
  • Mar 1, 2025UpdateVersion 0.9.7o
  • Oct 5, 2024UpdateVersion 0.9.7n
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
13
Play install range
100+ thousand
Launched
January 2015

Installs over time

Lisa's equation solver has been installed 130 thousand times. Over the past 30 days, it has been installed 13 times.

Rankings

Google Play top charts

Google Play Rankings for Lisa's equation solver

This app is not ranked

About the app and developer

About Lisa's equation solver

Lisa's equation solver is an education app developed by Harnisch Gesellschaft m.b.H.

Download Statistics

Lisa's equation solver has been downloaded 130 thousand times. In the last 30 days, the app was downloaded 13 times.

User Ratings

The app has no ratings yet.

App Information

Lisa's equation solver is freely available from Google Play. The APK size is 13.38 MB. The latest APK version available is 0.9.7t. The last update was on August 8, 2026.

Technical Requirements

Lisa's equation solver requires Android 7.0+ or higher. The app has a content rating of Everyone. The APK has been available on Google Play since January 2015.

Lisa's equation solver is made and published by Harnisch Gesellschaft m.b.H. AppBrain is an independent app data site and isn't affiliated with Harnisch Gesellschaft m.b.H. The app name, icon, screenshots and description belong to Harnisch Gesellschaft m.b.H. and are shown as published on Google Play.

App Performance Report

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Developer information for Harnisch Gesellschaft m.b.H.

Harnisch Gesellschaft m.b.H.

android@harnisch.at

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