I'm on the free plan, all the basic options to run a project are there and the mail notification/comment system works very well. The user interface is good. My only complaint is that you cannot have more than one person assigned to a task. It's their philosophy and they say that if you want to have more assignees you should either duplicate the task or create subtask (only for paid plans).
Hygger might be a bit more popular than Backlog. We know about 2 links to it since March 2021 and only 2 links to Backlog. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Backlog — Everything your team needs to release great projects in one platform. Free plan offers 1 Project with 10 users & 100MB storage. - Source: dev.to / almost 3 years ago
Backlog (Project Management Tool) In my work, every day I have to use this software which is intended for team project management. If you have a team, try it once. It has a lot of features. Https://backlog.com/. - Source: dev.to / about 3 years ago
Hygger — Project management platform. Free plan offers unlimited users,projects & boards with 100 MB Storage. - Source: dev.to / over 1 year ago
Loads! https://trello.com is the most popular, we use https://clickup.com because it’s more customisable but there’s https://monday.com, https://www.ntaskmanager.com, https://hygger.io, https://jira.com and loads more…. Source: almost 3 years ago
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