primopyterms of use

1Who we are#

Dr. Helmut Sedding, a sole proprietorship in Winterthur, Switzerland. You reach us at hello@quisim.com for Quisim, hello@primopy.com for Primopy and hello@rprimo.com for Rprimo; any of these addresses will do.

2Free use#

The Quisim demo editor is free of charge to anyone who signs in with a SWITCH edu-ID.

You may use the Primopy and Rprimo editors free of charge, without an account:

• for education: as a student, teacher or lecturer, and at schools, universities and other educational institutions, for teaching, learning and academic research;
• for private use: on your own, for learning or for your own projects, as long as it is not part of paid work.

3What needs a license#

• The Quisim full version. Building your own models beyond the demo editor needs a license.
• Commercial use of Primopy or Rprimo. An organization that uses them in the course of its business needs a license. This includes in particular using the editors in your job or for work you are paid for, training or onboarding staff, and running paid courses, workshops or bootcamps with them.
• The AI support and the AI tutor always need a license and a sign-in, whatever the use. Schools, universities and companies license them per class, per cohort or per term.

Write to us at any address in Section 1, and we will make you an offer. If you are unsure whether your use needs a license, ask us; we are happy to clarify.

4Licensed use#

Where you use our software under a license, held by your university, school or employer or obtained by yourself, the license agreement under which it was granted governs the license: what it includes, for how long, at what price, and the warranty and liability that apply. That includes the general terms that form part of it. These terms add the rules for everyone who uses the software under that license. Where the two differ, the license agreement prevails.

5Your account#

Where you sign in, your account is personal. Do not share your sign-in, let others use your session, or sign in on someone else's behalf. A license covers the people it names or the group it describes, such as the students of a course; access does not extend to anyone else.

Do not get round the limits of your license or of free use, nor the restrictions your institution sets, such as a class time window that switches a feature off during an examination.

6Fair use of the service#

Do not use the service in a way that harms it or other people's use of it. In particular, do not:

• attack our servers, probe them for vulnerabilities or overload them with automated requests;
• get round a license check;
• resell, sublicense, rent out or otherwise make the licensed parts of our software available to others;
• decompile or reverse engineer our software, except where the license of an open source component (Section 11) allows it.

We may suspend access that breaches these rules. Where a license is affected, we tell the license holder.

7Your work#

What you write and build is yours. It is kept in your browser, and a share link carries your project in the link itself; we receive neither. Our software claims no rights in your code, your models or your documents. We hold no copy and cannot restore them, so keep copies of anything you want to keep.

8The AI support and AI tutor#

Where your license includes them, the AI support in Quisim and the AI tutor in Primopy and Rprimo generate their answers with a language model. Answers can be incomplete or incorrect; check them before relying on them.

Examinations. Our software is intended for teaching and learning. It may be used in examinations or other assessed work only where your institution has expressly permitted it.

AI assistants you connect yourself. Where your Quisim license includes the AI builder, you may connect an AI assistant of your choice, such as Claude or ChatGPT, through our connector. The assistant acts in the Quisim window you have open, signed in with your account, and you are responsible for what you ask it to do there. What the assistant receives, including your models, results and images, is governed by your agreement with its provider. We are not party to that agreement and have no influence on it.

9Results and availability#

Our software is made for teaching, learning and analysis. Results, such as those of a simulation, depend on the code or model you write and the inputs you choose: decisions you base on them are your own, and results should be checked before anyone relies on them.

We develop the software continuously, so features may change. We aim for reliable operation but cannot guarantee that the service is always available or free of errors.

10No warranty#

Free use is provided as it is, without any warranty that the software is free of errors or always available. Do not rely on it for work where a fault could cause harm. To the extent permitted by law, we accept no liability for damage arising from its use; liability for intent and gross negligence remains unaffected.

For licensed use, warranty and liability are governed by the license agreement (Section 4).

11Third-party software#

Our software uses open source components under their own licenses, which are listed in Section 12 of the privacy notice. Nothing in these terms limits your rights under those licenses.

12Changes and applicable law#

We may update these terms; the current version is always published here with its version number and date. Where a change materially affects how you may use the software, we make it prominent rather than relying on this page alone.

These terms are governed by Swiss law. The place of jurisdiction is Winterthur, Switzerland, unless mandatory law provides otherwise, in particular for consumers. If a provision of these terms is invalid, the remaining provisions remain in force.