Platforms
All major platforms (Web/Windows/Mac/Linux/iOS/Android)Collaborative
YesSubtasks
YesDark Theme
YesOffline access
YesMarkdown support
YesSupported Calendars
Google CalendarPreview
Live PreviewHyperlinks
YesMobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
Web-based, Android/iOS PWACollaborative
yesSubtasks
yesDark Theme
yesOffline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
yesKarma system
noAPI
yesIncoming email support
yesMarkdown
yesWeb Clipper
yesReal-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
Web, Windows, Mac, Android, iOSCollaborative
yesSubtasks
yesDark Theme
yesOffline access
yesMarkdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
noKarma system
noAPI
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
yesStorage
Moo.do (free, encrypted), Google Drive (paid, not encrypted)Location based reminders
noCross-linking
yesSearch
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
Web / iOS / AndroidCollaborative
YesSubtasks
YesDark Theme
-Offline access
-Markdown support
-Supported Calendars
Google Calendar integrationPreview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
YesReminders
YesLocation-based reminders
NoCross Platform
YesStorage types
Google Drive integration + upload directly to SquidHub + link to documents on other platformsRealtime
YesRecurring
YesLocal hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
Windows, macOS, iOS, Android, WebCollaborative
YesSubtasks
-Dark Theme
-Offline access
NoMarkdown support
ExportSupported Calendars
-Preview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
NoLanguages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
Web, Windows, macOS, Linux, Android, iPhoneCollaborative
YesSubtasks
-Dark Theme
YesOffline access
YesMarkdown support
YesSupported Calendars
Google Calendar - Outlook & Apple coming soonPreview
-Hyperlinks
-Mobile widget
-Karma system
-API
YesIncoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
YesReminders
YesLocation-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
English, German, Portuguese, Spanish, French, Chinese (traditional), Korean, RussianMultiple Accounts
YesOpen Source
Only as Linux SnapSwimlanes
YesMultifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
Android / iOS / OSX / Windows / Web / Gmail / Outlook / Thunderbird / Kindle / Chrome / FirefoxCollaborative
-Subtasks
-Dark Theme
-Offline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
yesKarma system
yesAPI
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
yesLocation-based reminders
yesCross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
NoPlatform
-Technology
-Kanban Board
-Notetaking
-Platforms
-Collaborative
-Subtasks
-Dark Theme
-Offline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
iOS / macOSTechnology
-Kanban Board
-Notetaking
-Platforms
-Collaborative
-Subtasks
-Dark Theme
-Offline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
Web, iOS, Android, Desktop PC, Mac, Chrome, Firefox, Real-time Syncing.Collaborative
-Subtasks
-Dark Theme
-Offline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
Mac, Windows, iOS, Android Collaborative
-Subtasks
YesDark Theme
-Offline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
YesStorage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
Dart, SwiftKanban Board
YesNotetaking
-Platforms
Web, IOS, AndroidCollaborative
-Subtasks
-Dark Theme
-Offline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
YesReminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
YesPlatforms
-Collaborative
-Subtasks
-Dark Theme
-Offline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-Platforms
-Collaborative
-Subtasks
-Dark Theme
-Offline access
-Markdown support
-Supported Calendars
-Preview
-Hyperlinks
-Mobile widget
-Karma system
-API
-Incoming email support
-Markdown
-Web Clipper
-Real-time collaboration
-Storage
-Location based reminders
-Cross-linking
-Search
-Reminders
-Location-based reminders
-Cross Platform
-Storage types
-Realtime
-Recurring
-Local hosting
-Languages
-Multiple Accounts
-Open Source
-Swimlanes
-Multifactor
-Platform
-Technology
-Kanban Board
-Notetaking
-