Signale Font is a somewhat modern/retro font based purely in straight lines and circles of two different diameters.
Thanks to: Javier Rivero
More link: https://www.behance.net/momillo
This fonts are authors' property, and are either shareware, demo versions or public domain. The licence mentioned above the download button is just an indication. Please look at the readme-files in the archives or check the indicated author's website for details, and contact him if in doubt. If no author/licence is indicated that's because we don't have information, that doesn't mean it's free.