Apps similar to One Horizon include Redmine, which is free and open source. Other options are OpenProject, JIRA, Radicle and Plane. There's no shortage of Project Management Tools like One Horizon, with more than 50 alternatives for the web, self-hosting, Linux, Windows and Mac.
Secure, Simple, Affordable Source Hosting
We are a repository hosting company run by and for developers. Our easy to use control panel will get you up and running with Git, Subversion, and Mercurial quickly and provide you with a free project management tools, Trac and Redmine. .
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.
United States
Standing on the shoulders of Trac, Apache Bloodhound is a project hosted by the Apache Software Foundation. Currently, it has three key aims :
United States
Project management system for handling multiple projects, with granular per-project permissions, milestones, custom fields, integrated wiki, project timeline, email notifications, extensible plugins, robust API integration, and PHP-based web simplicity.
Australia
Create & annotate visual bug report tickets in your project management tool in seconds. Marker.io adds technical metadata & console logs for you, so developers can recreate & resolve faster. Developer-ready issues, even from non-technical reporters.
Belgium
EU
Enhance web development and e-learning projects by annotating and assigning bugs with zipBoard. It combines real-time visual feedback, task management, and collaboration tools to improve productivity. Suitable for QA teams, managers, developers, and designers with a focus on client integration.
India
Project cost management platform that calculates costs for your software projects automatically while you plan tasks in sprints using Agile Methodologies
Incredibly easy to use, feature rich, and lightning fast, Scrumwise is one of the leading tools for agile project management using Scrum and Kanban. It has support for backlog management, release planning, sprint planning, task boards, burndown charts, Kanban boards, and time...
FinlandEU
The new standard for product discovery. A feedback portal, research repository, and meeting recorder that's built around Linear to help you prioritize better.
Enpointer is a modern issue tracker for agile software teams. It lets teams follow scrum methodology by planning and creating sprints and boards to track the status of issues. It can be used to track bugs, user stories, epics, versions etc organised in various projects.
Serbia
