OpenProject is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is Notion, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to OpenProject and loads of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to OpenProject are Trello (Freemium), Basecamp (Freemium), ClickUp (Freemium) and Amazing Marvin (Paid).
TaskFalcon is a free project planning and tracking software, which keeps track of your tasks, resources, dependencies and supports features like resource collaboration, partial utilisation. It is free to use and can output GANTT- and resource charts in no time.
Codegiant includes pretty yet powerful tools for agile project management. It is meant to be a single platform for project management. People are loving it as a great alternative to Jira as it is faster with better UI/UX and is free to use for upto 5 users.
ONLYOFFICE Projects, part of the ONLYOFFICE suite, is an app created for everyone who wants to bring ease to project communication, keep up team productivity, get quick access to the assignments, and control progress.
Ora is an all-in-one realtime workspace for teams. It has everything your team might need to be productive. Task management, kanban, time tracking, chat, reports on projects and team productivity. It is powerful, yet simple and easy to use.