When comparing 24me vs WeDo, the Slant community recommends WeDo for most people. In the question“What are the best cross-platform task apps?” WeDo is ranked 41st while 24me is ranked 48th. The most important reason people chose WeDo is:
Has versions for Android, Web, and iOS.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Integrates with Android and iOS
The app has an Android version and an iOS version that syncs with the native reminders app.
Pro Combines 4 apps into 1
The app lets you manage your notes, calendar, personal accounts, and to-do list from one place.

Pro Cuts down on procrastination
The self-proclaimed "assistant for everyone," 24me helps people break the cycle of procrastination and willpower exhaustion by automating things they may have otherwise put off until later.
Pro Cross-platform
Has versions for Android, Web, and iOS.
Pro Supports file attachments
You can attach files to each task.
Pro Great user support
It is a new app, but they have a very good interface so the users can send their suggestions to improve the app.
Pro Users can add recurrent tasks
It allows users to set recurrent tasks.
Pro Supports subtasks
You can add subtasks to any task.
Pro Allows users to assign tasks to other users
It allows you to assign tasks to other person. If he/she does not use WeDo, it sends an invitation.
Pro Clean interface
Pro Free
At least for a while.
Pro Supports groups
You can add groups, and for each group, yuou can add members. It is something like Trello Boards, but I think its better.
Cons
Con No desktop or browser client
Con No calendar integration
Does not have calendar integration
Con Doesn't support multiple reminders
