Glip is an [almost] all-in-one, [almost] unified productivity tool takes a bunch of what I liked about Asana's task-management, and combines it with the instant messaging functionality of Slack.
Glip makes team communication, collaboration, and task/project management as simple as instant messaging. Whereas Asana begins and revolves around task-management, Glip begins with conversation, which is a much more organic way to collaborate, I think.
Glip excels in its instant messaging, which does more than just the usual chat. In addition to allowing users to easily communicate with their teams and co-workers, Glip's desktop app allows you to create and assign tasks, create and share (and annotate) notes and documents, schedule events, and attach files from your preferred cloud service...all through its instant messenger. Pretty snazzy.
The mobile app is a significantly paired-down version of the desktop app, but again, it excels at instant messaging - very response, keeps you connected to your teams...just with less functionality.
Overall, I definitely recommend Glip.
While there are a few things here and there that need to be addressed, it's Glip's calendar that hurts the experience for me. To put it simply - Glip's calendar is inadequate. More specifically, the calendar fails in its ability to effectively schedule recurring tasks and events. While it does allow for daily, weekly, monthly and yearly scheduling, it does not allow for more specific intervals. For example, our organization has an evening staff meeting on the 2nd Tuesday of every month - we can't schedule it Glip. As much as I want to use the Glip calendar personally, it's shortcomings force me to use the ever-faithful Google Calendar...which means, it's not really an all-in-one solution (which is supposed to be Glip's hook!). My suggestion to the Glip team is to look at what Google Calendar does as far as scheduling is concerned and copy it!
As far as the mobile experience is concerned, my two biggest gripes are 1) the 7-day calendar (seriously, why?); and 2) the inability to sort/filter tasks. Aside from the above, it's just ok. As mentioned previously, it's definitely not as full-featured as the desktop app...but, since instant messaging is Glip's primary function, it does that trick just fine.