YouTrack - Free, online, easy-to-use, fully customizable issue tracking and agile project management tool your development team will love, by JetBrains. Our cloud or your server.
Linear - Streamlined issue tracking for software teams
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
Distiller - Distiller's hosted continuous integration platform takes the pain out of mobile development through automated build, test, and deployment of your iOS apps.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
BugHerd - BugHerd: The Website Feedback Tool for Agencies