Any Do

Compatibility: iOS, Mac; Android;        
Chrome Extension; Windows

• Manage life in simple way using this to-do list app
• Sync your tasks across devices
• Reminders

Cost: Free and Premium Versions

Workflowy

Compatibility: Windows; Mac; iOS; Android

• Manage to-do lists, take notes, write papers, journal, plan
• 500 items per month w/ free version
• Lists, bullets, ability to add dates, formats, layout
• Sync across devices

Cost: Free and Pro Versions

Notion

Compatibility: Web application; Windows; Mac; iOS; Android

• Keep track of daily tasks and schedules
• Customizable organizing templates
• Share with others for collaboration
• Sync across devices

Cost: Free and Pro Versions