Checkvist.com

Name	Checkvist.com
Website	checkvist.com
Pricing
Free plan	Yes
Basic plan
Pro plan
Team plan
Business plan
Enterprise plan
Features
Tags	Yes You can add, search and filter with tags
Projects	Yes
Subtasks	Yes really easy just by pressing Shift+Enter when typing a new one or tab/shift+tab on the existing ones to nest un-nest them
Task hierarchy	Yes
Email notifications	Yes PRO
Email integration	Yes definitely yes https://checkvist.com/auth/help#listItems
Filters	Yes
Location awareness
Reports	Yes Available in Pro version
IM integration
Calendar	Yes
Contacts	Yes
Data import	OPML, text
Print	Yes
Multiple users/team
Tasks delegation	Yes PRO
Multiple Team Support	Yes Individual list sharing options
Collaboration	Yes
Advanced features
Offline Editing
Estimate task time
Next actions list	Yes due items list
Repeating tasks	Yes Pro version
Overdue Repeating Task Handling	Both (Configurable)
Reminders	By mail
Advance item manipulation(copy, dupl etc.)	Yes
Drag & Drop	Yes
Evernote Integration	Yes and 350 other online tools http://goo.gl/cs5Ud1
dropbox integration	Yes and 350 other online tools http://goo.gl/cs5Ud1
Shortcuts	Yes Full keyboard support. The most intuitive and comprehensive among every other tools.
Goal
Platform syncronizing	Automatic
Developer API	Yes
Smart Tags
Custom Fields
Advanced Filtering
Self-Hosted or Standalone versions available
Platforms
Web-version	Yes
Android Support	Yes Third-party app
macOS
Windows
iPhone Support	Yes Web-version
iPad Support	Yes Web-version
BlackBerry Support
Interface Speed	no rating