When comparing Things 2 vs Any.do, the Slant community recommends Any.do for most people. In the question“What are the best cross-platform task apps?” Any.do is ranked 14th while Things 2 is ranked 24th. The most important reason people chose Any.do is:
Any.do splits all tasks up into groups. Tasks can be grouped either by date (today, tomorrow, upcoming, and someday) or in custom folders. Each group has a plus button next to it that allows adding new tasks to the group.
Specs
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Pros
Pro Cloud sync
Users need to create an account for Things Cloud (the account can be created from any device). Once signed up, cloud sync will be active, and you’ll have to login on all of your devices to complete setup. From that point on, syncing happens in the background. It is invisible and always reliable.
Pro Daily review
At the beginning of every day, a yellow box appears at the top of the Today section, displaying all tasks scheduled for this day. You can investigate them, and then decide which ones you’ll have for that day and which one you’d rather want to delay.
Pro Easy to set up and use
Things 2 works from the moment you start it up. Simply add a task and when you want it done by. You can also add notes to tasks or tag when you need them. Things allows you to quickly and easily start keeping track of your tasks.
Pro Project support
Things 2 has a projects feature that allows you to organize your tasks together. You can select a project you need to get done and Things helps you focus on each task to get it done. You can even group projects together to focus on the most important aspect of your life at the time.

Pro Great for GTD
Things is one of the best apps of doing Getting Things Done.
Pro Nested tags
It's very easy filtering tasks that belong to various areas (etc private vs work)
Pro Responsive and easy naviagation
Logical and responsive navigation and editing. Easy to operate.
Pro Customized calendar
The calendar view (when selecting a due date for a task) is a customized, scrollable version of the default iOS calendar view. This makes it look familiar, but also functional for Things 2's requirements.
Pro Clean, intuitive design
Any.do splits all tasks up into groups. Tasks can be grouped either by date (today, tomorrow, upcoming, and someday) or in custom folders. Each group has a plus button next to it that allows adding new tasks to the group.
Pro "Any.do Moment" makes to-dos manageable
"Moment" is a reminder to check all tasks that are planned for the day. It simplifies scheduling your day and let’s you quickly check off items as they're completed. It can be set it to prompt you in the morning or afternoon to review your day’s tasks and update whether or not you’ve accomplished them. This is really useful for managing a long to-do list without feeling overwhelmed.
Pro Web interface for desktop access
The web interface can be used to add items.
Pro Clever auto-complete
As tasks are added, Any.do attempts to guess what is going to be written and offers suggestions. It will search through contacts for names and information, allowing you to add people to tasks and offering suggestions for meeting spots that are convenient for everyone.
Pro Missed call reminder on Android
The mobile app reminds you of missed calls and helps manage them in the future.
Pro Folders for tasks
Users can create and edit folders for certain tasks, like “personal” and “work.”
Pro Has a system that allows collaborating on tasks
Any.do allows creating "hubs" for groups of people, like colleagues, family, and friends, where tasks can be shared or assigned to each other.
Pro Simple
Any.do includes the features that are needed and nothing more.
Pro Free version
Any.do has a free version and also offers a Premium plan that costs $3 a month.
Pro Cross-platform support and sync
The app runs on iOS, Android, as a Chrome extension and in browsers.
Pro Rewards for completing tasks
The app integrates with Kiip, a reward platform that gives free, real-life rewards when a to-do list is completed.
Pro Five simple widgets for Android
There are five widgets to choose from, all of which are simple and useful.
Cons
Con Expensive if you buy apps for Mac, iPhone and iPad (all sold separately)
As at May 2016 if buying all three apps it cost $80! That said there is no annual subscription and I've been using Things for years and have only paid once so far.
Con Poor calendar view
Could be more convenient with calendar interaction. Not an ordinary approach for visual people, if you want to see all the calendar events in the familiar format.
Con No file attachment available
Con No supported time based/location based alarms
Other apps have these abilities, and they are very useful. Especially for a $10 app, it would be great to include these premium features.
Con No Windows app or client
Unlike rival to-do list apps such as Todoist or Wunderlist, Any.do does not have an official app for Windows. There’s also no indication that the company plans to build this app in the near future.
Con Lack of power features like priority and labels
Any.do has only two levels of priority that can be assigned to tasks, namely Normal and High. There is no way to assign any sort of weights to tasks either. There is no feature to assign any sort of labels on them to be able to filter particular type of tasks. These features are very valuable to a power user.
Con If you pay once it charges recurring even after unsubscribe and notified to the team as well.
Only solution is downgrade to free plan and remove credit card details.
Con Limited Any.do moments in free version
The free version gives only five Any.do moments per month, limiting productivity.
Con Cannot see task details easily
To view subtasks, notes or other data you have to click or tap multiple times. There is no task view that shows everything you should know about the task.
Con Invasive App Permissions
In order to be a complete solution, Any.Do can seem to take over your phone. For example, it monitors missed calls so you can schedule a call back.
Con Offline access not available in free version
Since the addition of the Premium plan, offline access to lists is not available for free Any.do users.
Con Spotty auto-complete and voice recognition
Though the auto-complete feature is very smart in that it can access contacts and create a variety of tasks, it also might auto-complete with something entirely wrong. The voice recognition also has some issues with correctly understanding what is being said.
Con Slow animations and features
The app goes for a smooth feel with lots of things being automated and animated. This slows down it's use, especially on older phones.
Con Awkward data entry
You cannot simply start entering tasks, one after another. You must click or tap the add icon to get a text entry field.
Con All tasks default to "today"
While there is a 'someday' category, by default every task as an end date of today. This means you get constant notifications for quickly added tasks.
Con Incomplete keyboard control
There’s no clear way to select and mark tasks using keyboard.
Con No Android Wear and Apple Watch support
The Any.do app currently does not support Android Wear or Apple Watch, in contrast to rival to-do list apps such as Todoist or Wunderlist. Currently Any.do does not have plans to support these devices.
