Our main tool for tracking tasks and maintaining bugs on them is YouTrack. We also often deal with Jira, Trello, Asana. All services have the same working principle, and the team can easily adapt to any tool.
We use Qase.io to store and maintain test cases for projects, we also have a lot of experience with TestRail. Additionally, we use Notion to store important project information that will be useful for the whole development team.
The testing team uses Charles and Insomnia on a daily basis. We can't imagine our activity without full immersion in the service.
Maintaining test documentation
Traffic monitoring, working with APIs
We use Figma to work with layouts. And testers use the service no less actively than developers.
To test analytics events, we connect to any service and understand them if we have not worked with them before. But at the moment we already have the most popular ones on our account - Amplitude, Google Analytics, AppMetrica, AppsFlyer, Pendo, Matomo.
In addition to an extensive number of physical test devices in the office, which we regularly replenish, we use a remote farm of the BrowserStack service. This gives us the opportunity to test applications on the most popular devices and axes, as well as on most of the devices available for full test coverage.