When comparing GTasks vs WeekPlan, the Slant community recommends WeekPlan for most people. In the question“What are the best offline to-do list apps for Windows?” WeekPlan is ranked 19th while GTasks is ranked 26th. The most important reason people chose WeekPlan is:
Gives you a better perspective by keeping it at the week level.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Unlimited subtasks
Unlimited subtasks or sub sub tasks, as deep as you need, excellent for project work.

Pro Synchronizes with Google tasks available natively in GMail
Seamlessly syncs tasks.
Pro dark theme available
Pro time reminder is supported

Pro Closing parent task closes sub tasks

Pro Available on iOS

Pro Works with Chrome's 'Google Tasks Panel' extension
Pro Week view
Gives you a better perspective by keeping it at the week level.
Pro Intuitive
Very clean and modern user interface.
Pro Goals of the week
Allows you to set goals for the week.
Cons
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 No recurring tasks fom completion
Con Does not support attachments
You cannot add attachments to tasks.
Con Very buggy
The app has issues with various bugs including logging you out unexpectedly, your info being wiped, and being very slow to load.
