Trademark policy

Product quality

It is fundamentally important to us that any permitted use of the Planet Crust Marks is of the highest quality and integrity and meets the highest standards. To ensure this is the case, we reserve the right to revoke your permission at any time.

Fair use

We acknowledge and support your right to make "fair use" of the Planet Crust Marks, and do not mean to suggest with these guidelines that our permission is required in such cases. We cannot, however, tell you categorically what will and will not qualify as a "fair use".

Our logos

For copies of the Planet Crust logo and the Aire AI logo, please contact us and we will send you the files.

Linking to our websites

We are pleased to permit you to link to planetcrust.com and aireapps.com from your website, using the logo graphics we provide. To use these logos you must agree that:

• the logos will be used only on the internet, only as a link to planetcrust.com, and not as a favicon;
• you will not imply or state an endorsement by Planet Crust or otherwise misrepresent your relationship with Planet Crust;
• you will not disparage Planet Crust using the logos;
• your use of the logos will not be deceptive or false in any regard;
• you will not create a browser or border environment around Planet Crust content;
• you may link to Planet Crust content;
• your website will not contain content that could be construed as distasteful, offensive or controversial, and will contain only content that is appropriate for all age groups; and
• this permission may be rescinded at any time, in which case you will immediately remove the logos from your website.

Merchandise

You are welcome to use the Planet Crust Marks to produce merchandise such as t-shirts, hats, bags, jackets, sweatshirts, mugs and desktop wallpapers, and give them to your friends, family and community members, provided there is no commercial interest behind it. You must request permission if you want to distribute articles using the Planet Crust Marks commercially (see Contact).

Domain names

If you want to include all or part of a Planet Crust Mark in a domain name, you should seek our permission (see Contact). People naturally associate domain names with organisations whose names sound similar. Almost any use of a Planet Crust Mark in a domain name is likely to confuse someone, which runs against the overarching requirement that any use of a Planet Crust Mark is not confusing.

Publications

If you want to include all or part of a Planet Crust Mark in the name of a publication such as a book or magazine, you need our permission (see Contact). You can, however, use a Planet Crust Mark in, for example, the title of a review inside a magazine.

Product and service names

You should not include a Planet Crust Mark in the name of your product or service, whether it is commercial or non-commercial. This includes online services such as e-commerce, community, blog, informational, promotional and personal home page sites. We do consider it permissible to use a Planet Crust Mark in a file, folder, directory or path name.

Compatibility references

We recognise that the community needs a way to identify projects, products and services that are compatible with Planet Crust. Our concern is that users are not confused about whether a compatible project, product or service is official. Please indicate compatibility using one of the following tag-lines, or an equivalent:

Business names

You should not include a Planet Crust Mark in the name of your company or business.

Commentary

We welcome comment and constructive criticism, and we try to have a good sense of humour. It is fine to use the Planet Crust Marks in discussion, commentary, criticism or parody, in ways that unequivocally do not imply endorsement. Please do not create mock or parody products with names based on the Planet Crust Marks. In our opinion, it is not "fair use" to use the Planet Crust Marks in a manner that disparages Planet Crust or the Planet Crust project.

All other uses

All other uses of the Planet Crust Marks are reserved by us, but we are happy to discuss terms for use.

Contact

If you need help with these guidelines, for example to discuss your case or request permission, please use our contact page or email info@planetcrust.com.

Licence for these guidelines

These guidelines are published under version 3 of the Creative Commons Attribution Share-Alike Licence, and are derived in part from the openSUSE Trademark Guidelines (13 February 2017), which in turn derive in part from the OpenSolaris Trademark Policy 1.0 (5 May 2008) and the Ubuntu and Mozilla trademark guidelines.

We reserve the right to change these guidelines at any time without notice. We last updated them on 2 April 2025.