When comparing GTasks vs Quire, the Slant community recommends Quire for most people. In the question“What are the best to-do list apps for Android?” Quire is ranked 27th while GTasks is ranked 36th.
Ranked in these QuestionsQuestion Ranking
Pro Unlimited subtasks
Unlimited subtasks or sub sub tasks, as deep as you need, excellent for project work.
Pro Closing parent task closes sub tasks
Pro Synchronizes with Google tasks available natively in GMail
Seamlessly syncs tasks.
Pro Available on iOS
Pro Works with Chrome's 'Google Tasks Panel' extension
Pro Cross platform, sync and offline usage
Pro Organizations, projects, task, hierarchical subtask and smart folders
Unlimited tasks/todo structures
Pro Integration with calendar and github
I haven't dabbled with that though
Pro Multiuser handling
Handle multiple users and assignments
Pro It is free
As of now, at least.
Con No recurring tasks fom completion
Con Pop up ads get in the way
The app frequently displays popup ads when you navigate the app, forcing you to pause to close them.
Con Does not support attachments
You cannot add attachments to tasks.