Support

Need help with Markio, found a bug, or have an idea? Here is how to reach us.

Report a problem or request a feature

The best way is to open an issue on GitHub — it keeps the whole conversation and any fix in one place:

You will need a free GitHub account to post. Please include your macOS version, the Markio version (Markio → About), and steps to reproduce.

Markio is a read-only viewer: it works fully offline, has no accounts and no in-app purchases.
Open a file via Cmd+O, drag-and-drop, or Finder's Open With → Markio.
See the Privacy Policy for how your data is handled (short version: it is not collected).