Common questions about GeoGebra Apps

Why are there so many different apps?

[size=100]In order to satisfy our user community while simultaneously being compliant with regulations for high-stakes testing, we have different [i]GeoGebra[/i] apps from which you can choose. This allows students to use the power of our apps for high-stakes tests and paper exams while restricting their access to the internet or other software that are not allowed during these tests. At any time, you can also use the [i]Calculator Suite[/i] or [i]Classic[/i] app to access the fullest power of [i]GeoGebra. [br][/i][br]Have a look at the [url=https://www.geogebra.org/m/shfwqcpr]Comparison of GeoGebra Math Apps[/url] to find the right app that meets the testing requirements of your school district, state, or ministry of education. [/size]

How can I send a message to an author?

Go to the details page of the resource. There you will find the option "[i]Contact author of resource[/i]".

Why are the CAS commands not working in Graphing Calculator?

We have removed all CAS commands and geometric construction features from our [i]Graphing Calculator[/i], as many states and countries do not allow students to access these features on high-stakes exams. You can still use numeric versions of these commands. [br][br]Symbolic computations like the integral are now gathered in our [i]CAS Calculator[/i] app which is available for Android on the [url=https://play.google.com/store/apps/details?id=org.geogebra.android.cascalc]Google Play Store[/url] and for iOS on the [url=https://itunes.apple.com/us/app/geogebra-cas-calculator/id1436278267?mt=8]App Store[/url]. You can also use our [i]Calculator Suite [/i]app for symbolic computations. The [i]Suite Calculator[/i] is also available for Android on [url=https://play.google.com/store/apps/details?id=org.geogebra.android.calculator.suite]Google Play Store[/url] and for iOS on the [url=https://apps.apple.com/us/app/geogebra-calculator-suite/id1504416652]App Store[/url].

Which commands can I use in the CAS app?

You can find a list of all CAS specific commands in the [url=https://wiki.geogebra.org/en/CAS_Specific_Commands]GeoGebra Manual[/url].

Why are numbers not exact in Graphing Calculator?

The [i]Graphing Calculator[/i] outputs decimal approximations. Our [i]CAS Calculator[/i] provides exact values.

How do I know if my Android phone supports AR?

You can check here if your Android phone or tablet supports AR: [url=https://developers.google.com/ar/discover/supported-devices]https://developers.google.com/ar/discover/supported-devices[/url][br]For Android devices, you will also need to install Google Play Services for AR: [url=https://play.google.com/store/apps/details?id=com.google.ar.core&hl=en]https://play.google.com/store/apps/details?id=com.google.ar.core&hl=en[/url][br]

Why are undefined points not shown when plotting a graph?

Invalid values are not excluded, because [i]GeoGebra[/i] uses the [url=https://en.m.wikipedia.org/wiki/Extended_real_number_line]extended real number line[/url]. So this is the expected behavior. [br]

Why is the input cursor displayed as a "j" instead of a "|"?

This is a phone-specific issue with Huawei phones. Please try to set the theme or font of your phone to standard setting and give [i]GeoGebra[/i] another try.

How can I disable automatic updates for my apps?

On mobile devices you can disable automatic updates in the App Store / Play Store.[br]To avoid automatic updates for installed desktop apps, please use a portable version. You can find an overview of the different versions in the [url=https://wiki.geogebra.org/en/Reference%3AGeoGebra_Installation]GeoGebra Manual[/url][br][b]Note:[/b] We recommend to enable automatic updates as they give you access to new features and bug fixes.

Can I save and load files on my phone?

Yes, you can save files offline on your phone by using "[i]Save[/i]" in the menu. When asked to Sign in, scroll to the bottom and select “[i]Continue without signing in now[/i]”. Your files will be collected in a [i]GeoGebra[/i] folder on your internal memory. Tapping on any .ggb files in other apps, e.g. your file manager or an email app, will open this file in the right [i]GeoGebra[/i] app. [br]If you are using our iOS apps, you can use "[i]Share[/i]" in the menu and then save it to your files on your device.[br]

My computer crashed, is my work saved?

Have a look in the computer's temporary folder an look for the [b]most recent[/b] file like GeogebraUndoInfo6533063557894725659.ggb or just type "%temp%" in Windows Explorer and press "[i]Enter[/i]".

I can't open my .ggb file, is there a way to fix it?

Often a broken file can be fixed following these steps:[br]1. Install a free trial version of [url=https://www.win-rar.com]WinRAR [/url]on your computer[br]2. Open WinRAR and find your broken file[br]3. Select your broken file and click "Repair" in the toolbar[br]4. Select a location to save the new file and "treat as ZIP"[br]5. The new file created by WinRAR should work now[br][br]If the file is still broken, go to the [url=https://help.geogebra.org/hc/en-us]GeoGebra Forum[/url], maybe we can help. To find out more about [i]GeoGebra's[/i] file format, read about it in the [url=https://wiki.geogebra.org/en/Reference:File_Format]GeoGebra Manual[/url].[br]

Where can I find more information about the Moodle Plugin?

Currently, the Moodle plugins are not maintained officially by the GeoGebra team.[br]The Moodle plugin has a new maintainer as you can see [url=https://github.com/mebis-lp/moodle-qtype_geogebra/issues]here[/url].

Where can I find the latest version of the GeoGebra manual?

You can find the GeoGebra manual on the following two links:[br][list][br][*][url=https://wiki.geogebra.org/en/Manual]https://wiki.geogebra.org/en/Manual[/url][/*][*][url=https://wiki.geogebra.org/GeoGebra-en-Manual.pdf]https://wiki.geogebra.org/GeoGebra-en-Manual.pdf[/url][/*][br][/list]