When comparing Things 2 vs Pocket Informant, the Slant community recommends Things 2 for most people. In the question“What are the best GTD apps?” Things 2 is ranked 15th while Pocket Informant is ranked 27th. 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 Manages much more than events
Pocket informant manages notes, tasks, and calendar info.
Pro Integrates with Apple calendar & iCloud
Pro Great organizer
Almost everything is provided, from calendar to todo,'s as well as managing lists, all of which is organized via Pocket and syncs perfectly thru all devices.
Pro Getting Things Done (GTD) integration
Pro Projects & checklists
Pro Syncs across all devices
InformantSync ensures that your calendar / tasks / notes / etc. are all synced.
Pro Displays weather
Temperature and other weather conditions are displayed each day.
Pro Easy and great looking Calendar to work with
Adding events and making them visible between other events is easy. Streamlining your multiple events is implemented very well in this app.
Pro Configurable views
Pro Advanced filtering system
Events can be tagged, sorted by location, priority, or context.
Pro Scalable
You can use it as a basic organizer or a complex project tool.
Pro Seven Day side-by-side view puts the next 7 days in an easy to use format
It makes is extremely easy to view and provides great functionality for updates or creating new events.
Pro Time zones and trips
Handles time zones automatically considering declared trips.
Pro Calendar printing
Pocket Informant supports printing, meaning that a calendar can be printed after being loaded with information.
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 Bit complicated for everyone
It is a feature oriented app for the people who love its multiple functions, but those that don't may find it complicated to use.
Con Restricted free version
The free version has many restrictions. The full version costs $14.99.
Con Lack of integration
Lack of integration. For those using several apps, integration is essential.
