Apps similar to PubKeep include PubHarbor, which has a free version. Other options are Korva - Desktop Publisher. Between them they cover Mac, Windows, Linux, iPhone and iPad.
PubHarbor opens Microsoft Publisher .pub files on Mac, iPhone and iPad, without Publisher or Windows. It is useful now that Publisher leaves Microsoft 365 on 1 October 2026: read old newsletters, flyers and programmes, and export them to PDF.
Poland
EU
Enables editing and PDF export of legacy Microsoft Publisher .pub files on macOS, Windows, and Linux with templates, object-based layout tools, master pages, local offline processing, and CSV mail merge. No account needed; complex imports may require cleanup.
Thailand
