eSquirrel’s privacy policy

In summary, this means …


Data transmission on the Internet, especially e-mails, is not 100% secure. Keep this in mind when sending something to us over the Internet.

Like any app and web platform, we process user data to provide our service. Doing that we implement? the GDPR (EU) in a strict setting. We guarantee 100% GDPR compliance.

The Privacy Policy is a formal document in which we explain what data we store about you and how we handle it. These are rules for using the eSquirrel platform, to which we are 100% committed .

Consent to the privacy policy is required as soon as personal data is involved. This is not the case if you are using the eSquirrel app merely with a nickname. This means that the app can be installed and set up directly in class without additional consent. 

If personal data is involved, according to the GDPR (EU), users over  the age of 16 are allowed to agree to the privacy policy themselves. In some countries, such as  Austria, this limit has been lowered to 14 years. eSquirrel requests consent from parents or legal guardians for users who have not reached this age, depending on the country, and logs this consent with name and data. In this case, it is therefore recommended to install eSquirrel at home with the parents. 

Optionally, this helpful printable form, which summarizes the points for students and course participants , serves as an aid to teachers and students. The legal effective consent to the privacy policy is given by each eSquirrel user (or the parents or legal guardian) via  the platform (whether Android, iOS or Web) itself. This form is also displayed when creating a class in the teachers’ portal.

1. General

hereinafter referred to as „eSquirrel“), located  at  Guglgasse 6/2/608, 1110 Vienna, tries to do everything in its power to prevent unauthorized access to data of its users. Technical protection measures from the beginning („privacy by design“) such as SSL encryption, trusted cloud solutions such as Heroku and AWS in the EU should guarantee the highest possible data security.

By registering (except if this takes place exclusively via nicknames), the user allows the collection, processing and use of personal data by eSquirrel or by third-party service providers in the name and on behalf of eSquirrel based on the following privacy policy. The consent of the user will be  recorded  by eSquirrel.

The user has the right at any time to revoke the consent to the use of his data described in detail below within the framework of the legal requirements . For the revocation, it is sufficient to send an email to [email protected],

in which the user states  the email address, telephone number or Facebook/Google/Untis ID used in the course of the registration. After the revocation, the user can not use eSquirrel any more or only to a limited extent.

In summary, this means …


eSquirrel cares about how your data is handled. To use eSquirrel as a student, you can simply use the app with a nickname without having to agree to the privacy policy. If you provide personal data in the app or use the web portal for teachers (e.g. author tool, teacher portal), you have to provide some personal data and agree to their processing. You can revoke this consent at any time.

2. Collection, processing and use of personal data

In order to provide eSquirrel with the services described in the General Terms and Conditions (GTC), it is necessary to collect, process and use personal data provided by the user , especially during the registration process or when completing his profile.

Personal data are individual details about personal or factual circumstances of a specific or identifiable natural person.

In the course of the free registration in the eSquirrel app, the user can register with nicknames. It is not possible for the user to enter personal data. If the user wishes to provide personal data at a later date, he must first agree to the privacy policy. In all other cases, the user will be asked to provide certain information, without which registration cannot be completed.

The following data is provided by the user during registration:

  • First name (taken over from Facebook/Google/Apple/Untis login)
  • Last name (taken over from Facebook/Google/Apple/Untis login)
  • Parent’s name, if required by age for consent to the privacy policy
  • E-mail address or phone number or Facebook/Google/Apple/Untis ID 
  • Password (selected by the user, if not via Facebook/Google/Apple/Untis  login)
  • Primary role in the eSquirrel platform (student, teacher, course instructor, other )
  • Age at the time of registration
  • Country of residence
  • Device language

Access to eSquirrel is via the login data, which consists of the email address or phone number provided by the user and the password defined by the user or the Facebook/Google/Apple/Untis login.

When users sign up  via e-mail address or phone number, they must verify the e-mail address or phone number by confirming an e-mail or text message. eSquirrel saves the date of the confirmation.

In summary, this means …


When you create an eSquirrel account, you provide various data, such as your name, email address or phone number.


2.1 Who sees my learning progress?

Roles at eSquirrel

eSquirrel has several roles that you can use with the same account. In each role, you can do different things.

Author. As a author, you create new courses. These contain chapters, quests and questions.

Teacher. As

a teacher, you create new classes based on courses. These courses you have either created yourself as an author or you use courses that eSquirrel has created for you with great care.

Student. As

a student, you practice the questions of the course  that you either purchased yourself  in the app (we call these classes „Store Class“) or that were provided by your teacher (we call these courses „normal class“).

Publishing company. As

a publisher, you can see the revenue generated by your eSquirrel courses and how many times your course has been loaded.

Types of classes

The visibility of the data submitted  to other members within  the eSquirrel profile and learning progress and quiz results depend on the type of classes you are in. We distinguish three types: Normal, Store and Preview.
Normal. In a normal class, the student is connected to a teacher. The classmates are in the same class.
Preview. A preview class is only available to authors who create an eSquirrel course themselves. In this class, only the authors are students. The authors are also the teachers of the preview class.

Store. This type of class can be purchased  in the app. There is no teacher attached to  it. All students who have not connected to  a teacher for this course are in this class.

Data we share

Points. All the nuts you have  collected in one  class, added up.

Nuts from quests that you have repeated several times – that is, that you have reached a higher level – are worth more.

Classmates in your normal class will see your points with your name given during registration if you are among the TOP 33% of your class. Only you will see your own position if you are not in the TOP 33%. 

Classmates in your store class will see your points with your first name and the first letter of your last name you provided during  registration if you are in the TOP 33% of your class. Only you will see your own position if you are not in the TOP 33%.


Learning progress and learning analytics. Your learning progress, quiz results and analytics  (e.g. what you´re already good at and what  questions you´re struggling with) are visible to your teachers when you are in a normal class. In the Store class, only the operators of the eSquirrel platform see this. We do not share this data  with third parties.

In learning progress, your teachers will only see that you completed quests on time, but not exactly when.

All this information we have tried to present to you clearly in the following table.
PointsVisibleVisible if in TOP 33% of classVisible
Learning progressVisibleNot visibleNot visible
PointsVisiblePartially visible (first name and first letter of surname specified at registration) if in TOP 33% of classDoes not exist in a store class.
Learning progressVisibleNot visibleDoes not exist in a store class.

In summary, this means …

Your learning progress will be saved to your account. If you are connected to your teacher in a course, he will see your learning progress. He sees if you have completed quests, but not exactly when.

Your classmates only see your score if you are in the TOP 33% of your class. If you are connected to a teacher, your classmates will see your full name. If not, they will only see your first name and the first letter of your last name.

2.2 Additional technical information

Each time you access eSquirrel, usage data is transmitted and may be stored in log files. These data are:

  • IP address of the accessing computer
  • Browser type and version
  • Device model, device name, device unique token, and operating system
  • eSquirrel user ID and authentication token
  • Name of the retrieved page
  • Date and time of retrieval
  • Referrer URL
  • Transferred amount of data
  • Status message as to whether the retrieval was successful
  • Log data about the execution of the call

In the so-called login records, the following usage data is stored each time the user logs into the platform: 

  • Date and time of login
  • User ID on eSquirrel
  • authentication token
  • Browser type and version
  • Device model, device name, device unique token, and operating system

To enable push notifications, we periodically transmit  an identifier that  uniquely identifies the instance of the application to our servers and to Firebase.

This data is collected automatically for the provision of the service by eSquirrel to the user.

In summary, this means …

When you log in to eSquirrel, additional data will automatically be collected . For example, when and from which device you have logged in, in order to offer  you the best mobile optimized service.

3. Purpose binding

Personal data is collected primarily to enable users to use eSquirrel in a safe, smooth, efficient and personalized manner. Primarily, this data is used for the following:

  • Provision of the services requested by the user
  • Adapt, measure and improve the performance of eSquirrel and its content.
  • Notification of eSquirrel’s services, news and promotional offers, as permitted under this Privacy Agreement.
  • Prevent, detect, and remedy potentially prohibited or illegal activities and enforce eSquirrel’s Terms and Conditions, resolve disputes, and troubleshoot problems.


3.1 Marketing of publishers

For courses created by publishers and offered in the in-app store, you can decide whether your email address may be shared with the publisher for marketing purposes. If you agree , it will be made available to the publisher. The permission to be contacted by the publisher can be cancelled after receiving the first newsletter via the newsletter itself. The dispatch of the newsletter and the compliance with the corresponding legal regulations are the sole responsibility of the publisher 

In summary, this means …


eSquirrel uses your data only to be able to perform the services described in the terms and conditions.

If you want a publisher to contact you for news, you can explicitly agree to this when you purchase a course in the app. You can revoke the consent directly from the publisher (eg in the newsletter).

4. Disclosure of personal data to third parties

eSquirrel does not sell, exchange  or otherwise disclose personal data and  information to third parties for commercial purposes without authorization. eSquirrel will only disclose personal data of users  to third parties if the user has given his consent to this, or if  eSquirrel is obliged to do so as a result of legal regulations or official orders.

eSquirrel is expressly authorized by the users upon registration by accepting the general terms and conditions (GTC), to provide access to participant data to  school administration and  school authorities on their request. The users will be informed about this.

Third parties do not include external service providers of eSquirrel that  provide services on behalf of eSquirrel. These include, for example, host providers, payment providers, collection agencies or email or newsletter senders contracted  by eSquirrel to send  emails/newsletters from eSquirrel. UndereSquirrel sub-processorsyou will find a list of all service providers that perform  services on behalf of  eSquirrel under regulated conditions.


Use of Google Analytics with anonymization function

We use Google Analytics, a web analysis service of Google Inc., 1600 Amphitheater Parkway, Mountain View, CA 94043 USA, hereafter „Google“ on our website. Google Analytics uses cookies.
The information generated by these cookies, for example time, location and frequency of your website visit, including your IP address, is transmitted to Google in the United States and stored there.
We use Google Analytics with the addition „_gat._anonymizeIp“ on our website. In this case, your IP address will already be shortened by Google within member states of the European Union or in other contracting states of the Agreement on the European Economic Area and thereby  anonymised.
Google will use this information to evaluate your use of our website, compiling reports on website activities and  providing other services related to website activity and internet usage. Google may also transfer this information to third parties if required by law or as far as third parties process this data on behalf of Google.
Google will, according to its own information, in no case associate your IP address with other Google data. You may refuse the use of cookies by selecting the appropriate settings on your browser, however please note that if you do this you may not be able to use the full functionality of this website.

Use of Fabric (including Crashlytics) in apps

We use Fabric in our app, a web analytics service provided by Google, to improve the app and fix bugs, such as crashes. The data collected for this purpose is provided to us anonymously and becomes the property of Google. We are notified of crashes and see the line of code that caused the crash, the type of device and operating system installed, the amount of free RAMand flash memory, and whether the operating system is jailbroken. We use this data to reproduce the error as well as possible and then fix it in one of the next versions.

The data stored by Fabric itself is described in Fabric´s T&Cs (

In summary, this means …


Of course, eSquirrel will treat your personal data confidentiality and only disclose it, if at all, with explicit consent. Certain service providers (eSquirrel sub-processors) further process the data on behalf of eSquirrel under regulated conditions.

In addition, we use services such as Google Analytics that use anonymized data to improve our services.

5. Creation of anonymous and pseudonymous usage profiles for the optimization of services

eSquirrel will perform or cause to be performed analyses of the behavior of its users in the context of the use of its service and will anonymize and aggregate user data for this purpose. This data will be stored within the scope of the EU Data Protection Regulation. The user profiles are created for the sole purpose of making eSquirrel’s service more efficient, secure and user-friendly.

In summary, this means …

eSquirrel reserves the right to aggregate anonymized data for  analysis  or to share  the anonymized data to trusted parties  for analysis as well.

6. Use of cookies

eSquirrel uses so-called „cookies“ for the purpose of performing its services. A cookie is a text file that is either temporarily stored in the computer’s memory („session cookie“) or saved  on the hard disk („permanent“ cookie). Cookies contain e.g. Information about the user’s previous access to the corresponding server or information about which offers have been called up so far . Cookies are not used to run programs or download viruses onto your computer. The  main purpose of cookies is rather to provide an offer tailored specifically to the user and to make the use of the service as convenient  as possible.

eSquirrel also uses cookies as part of Google Analytics, see section 4.

The user has the option to reject the setting of cookies at any time. This is usually done by selecting  the appropriate option in the browser settings or through additional programs. More details can be found in the help function of the browser used by the user. If the user decides to disable cookies, he or she will not be able to use eSquirrel to its full extent on the web.

In summary, this means …

eSquirrel uses cookies for its services – eg to keep a user logged in to the browser.

7. Information about stored data

The user has the right to request information at any time about the personal data stored by eSquirrel, as well as their origin, the purpose of storage and the recipient to whom the data will be disclosed. This information is free of charge and will be provided in writing. The request for information, together with a copy of the identity card, must be sent in writing and signed by the person concerned to the following address: [email protected]


In summary, this means …


You have the right to request information about your data stored by us.

8. Deletion and correction of data

When the account is closed, the associated personal data is generally deleted. eSquirrel stores the described data for as long as required by law. Therefore, eSquirrel may keep certain data even after closing the account. However, this does not lead to any restrictions on the right to close an account.


In summary, this means …


You have the right to close your account and request deletion of your data.

9. Verification of personal data

To protect against people abusing eSquirrel’s Internet services, eSquirrel uses various  automated monitoring tools to randomly analyze activities on the platform and check the plausibility of user input, without any legal obligation on eSquirrel. Certain character strings  or logins from different users that appear to originate from one computer, for example, can lead to the blocking of suspicious activities.


In summary, this means …


eSquirrel randomly checks the accuracy  and plausibility of personal data.

10. Current state of the art

The user is aware that data protection for  data transmissions on the Internet is not yet comprehensively guaranteed according to the current state of the art. In particular, e-mails do not represent secure communication, as the „reading“ of content can not be technically excluded. eSquirrel is not responsible for this, the user is therefore responsible for the security of the data he or she transmits to the Internet.

In summary, this means …


Data transmission on the Internet, especially e-mails, is not 100% secure. Keep this in mind when sending something to us over the Internet.

11. Disclaimer

eSquirrel has no influence on the compliance with the data protection regulations by the operators of external websites and services of third parties and cannot assume any liability for the compliance  with data protection regulations by the operators of linked sites. eSquirrel does not adopt  the content of external websites or files linked by eSquirrel or by users as its own under any  circumstances.

In summary, this means …


eSquirrel is not responsible for the privacy practices of, or the content of, any external service to which it links.

As of May 15, 2023

Any questions?

Contact us at any time, even if you wish to delete your account, at [email protected]!