When comparing Things 2 vs To Round, the Slant community recommends Things 2 for most people. In the question“What are the best cross-platform task apps?” Things 2 is ranked 24th while To Round is ranked 57th. The most important reason people chose Things 2 is:
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.
Specs
Ranked in these QuestionsQuestion Ranking
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 Easy to use
The interface is clear and smooth.
Pro Unique and interesting design
The bubble design format is simple to understand visually and is effective in keeping track of ones to-do list.
Pro Gamification of tasks
To Round turns task-completion into a game-like experience, which is good for those who are motivated by this type of positive feedback. It can be a little distracting or annoying for users who want an even simpler process.
Pro Convenient widget
The app features an Android widget that you can place on your homescreen to view your current tasks even more quickly.
Pro Good reminder feature
You can enable push notifications that make sure you never forget a single task.
Pro Visualisation of tasks
The app uses bubbles to represent tasks. The bigger the bubble, the more important the task is.
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 web-based access
The website demonstrates how the app works, but doesn't allow you to access any of your own to-dos.
Con No desktop app
So far no apps for desktops have been launched.
