Shared Calendars

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Whaller
Freemium • Proprietary
Group Chat App
Team Collaboration Tool
Social Network
Online
Android
iPhone
Android Tablet
iPad
Software as a Service (SaaS)
110 alternatives to Whaller
Create your own free and unlimited private social networks.
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Whaller Features
1. Kanban BoardWhaller allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
2. Two-factor AuthenticationWhaller supports two-factor authentication (2FA).
3. IFTTT IntegrationYou can connect different services to automatically trigger actions within Whaller using IFTTT.
4. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
5. Support for MarkDownWhaller supports MarkDown for document formatting.
6. Calendar ViewWhaller has a built-in calendar view to have a clear overview of your content over time.
7. Hierarchical StructureOrganize your notes, pages, documents, etc., hierarchically with Whaller.
8. Real time collaborationMultiple users can work together in Whaller simultaneously.
File Sending
Community management
Onedrive integration
Built-in File Manager
Dropbox integration
Google Drive integration
Private messaging
Shared Calendar
Top 3 alternatives
Peergos
Freemium • Open Source
Team Collaboration Tool
Calendar App
Mac
Windows
Linux
Online
Self-Hosted
Java
9 alternatives to Peergos
Peergos is a secure and private online space where you can store, share and view your photos, videos, music and documents.
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Peergos Features
1. DecentralizedPeergos is based on a decentralized infrastructure with no single entity controlling it.
2. Shared FoldersPeergos supports shared folders that can be used to store, search, and access files with multiple people.
To do lists
Security focused
Peer-To-Peer
Distributed
Shared Calendar
Top 3 alternatives
Kopano
Paid • Open Source
Mail Server
Email Client
Mobile Device Management (MDM) Tool
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
Windows Phone
iPad
Self-Hosted
Microsoft Office Outlook
S/MIME
Software as a Service (SaaS)
25 alternatives to Kopano
Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.
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Kopano Features
1. Real time collaborationMultiple users can work together in Kopano simultaneously.
On-premises software
Shared Calendar
CalDAV Support
IMAP Support
S/MIME Support
POP3 Support
Top 3 alternatives
Hitask
Freemium • Proprietary
Task Management Tool
Project Management Tool
Team Collaboration Tool
Online
Android
iPhone
Android Tablet
iPad
Software as a Service (SaaS)
119 alternatives to Hitask
Hitask is the project planner for getting tasks done. Assign, prioritize, and remind tasks to your team with lists. Check progress of each project on the go and see what your organization is working at.
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Hitask Features
1. Sync with Google CalendarHitask can be synchronized with Google Calendar
2. Recurring TasksHitask supports scheduling a task to recur at any frequency, such as daily or weekly.
3. Calendar IntegrationHitask lets you sync your tasks and events with your calendar application.
4. Task Time TrackingKeep a record of time spent on a task with Hitask.
5. Works OfflineHitask can be used without the need to connect to the internet.
6. Unlimited storageHitask offers a solution with unlimited cloud storage.
Shared Calendar
Automatic time tracking
Task assignments
Android Sync
Task Tracking
Built-in Calendar
Web-Based
Outlook integration
Zapier integration
Visual Tagging
Top 3 alternatives
Calendar
Free • Proprietary
Calendar App
Todo List Manager
Online
51 alternatives to Calendar
Calendar, part of Office Online , is a time-management web application by Microsoft.
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Calendar Features
1. RemindersCalendar allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
Shared Calendar
Top 3 alternatives
eXo Platform
Freemium • Open Source
Team Collaboration Tool
Project Management Tool
Task Management Tool
Mac
Windows
Linux
Online
Android
iPhone
iPad
Self-Hosted
Software as a Service (SaaS)
97 alternatives to eXo Platform
eXo Platform is an all-in-one digital workplace solution that helps you connect, align and engage your teams around a single interface. You can use it to improve company and peer-to-peer communication, boost collaboration and manage company knowledge.
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eXo Platform Features
1. Real time collaborationMultiple users can work together in eXo Platform simultaneously.
Remote Work
Digital Workplace
Employee Engagement
Knowledge Management
Social intranet
Shared Calendar
Top 3 alternatives
PrivMX Fusion
Freemium • Open Source
Group Chat App
Team Collaboration Tool
Video Calling App
Mac
Windows
Linux
Self-Hosted
Software as a Service (SaaS)
116 alternatives to PrivMX Fusion
PrivMX Fusion is safe and easy collaboration software for all kinds of teams, with virtual workspace protected by end-to-end encryption. Each team uses desktop/laptop client software and its own (zero-knowledge) PrivMX Team Server.
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PrivMX Fusion Features
1. No TrackingPrivMX Fusion will not track you or use your personal data.
2. End-to-End EncryptionPrivMX Fusion has E2E Encryption, for entire or parts of the app.
3. Kanban BoardPrivMX Fusion allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
4. AES-256 EncryptionPrivMX Fusion has AES-256 Encryption, i.e. very strong security.
5. VoiP CallsPrivMX Fusion allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
6. DecentralizedPrivMX Fusion is based on a decentralized infrastructure with no single entity controlling it.
7. Block TrackersPrivMX Fusion has a feature to block trackers from tracking you.
8. Two-factor AuthenticationPrivMX Fusion supports two-factor authentication (2FA).
Team work
Task Scheduling
Task Tracking
Share screenshots
List management
Desktop Application
Share notes
Asynchronous
Encrypted Notes
File Storage
Top 3 alternatives
Zoho Calendar
Free • Proprietary
Calendar App
Online
58 alternatives to Zoho Calendar
Zoho Calendar is an online calendar that helps you stay organised. Zoho Calendar makes scheduling events & appointments, sharing team calendar, booking resources easy & effortless. With over 15 million happy users, we are equipped to cater for different needs - Personal...
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Zoho Calendar Features
1. RemindersZoho Calendar allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
CalDAV Server
Shared Calendar
Compatible with Google Calendar
Appointment Scheduling
Scheduling
Top 3 alternatives
Axigen
Paid • Proprietary
Mail Server
WebMail Provider
Mac
Windows
Linux
BSD
Self-Hosted
Microsoft Office Outlook
Software as a Service (SaaS)
29 alternatives to Axigen
Axigen provides a multi-tenant, fully integrated, multi-platform, all-in-one email, calendaring and collaboration messaging solution. It grants extensive branding options and is localized in over 29 languages (including right-to-left writing mode).
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Axigen Features
1. Real time collaborationMultiple users can work together in Axigen simultaneously.
2. Shared FoldersAxigen supports shared folders that can be used to store, search, and access files with multiple people.
Customizable
Shared Calendar
Clustering
Customizable branding
CalDAV Support
Email Archiving
Clustering Support
Multiple languages
Delegated Administration
CardDAV Support
Top 3 alternatives
IceWarp
Paid • Proprietary
Team Collaboration Tool
Group Chat App
Mail Server
Windows
Linux
Online
45 alternatives to IceWarp
IceWarp integrates all communication & collaboration features in one unified solution. Available in cloud or for on-premises deployment, IceWarp is a great tool to share and exchange all information and ideas online, offline or via mobile devices.
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IceWarp Features
1. Real time collaborationMultiple users can work together in IceWarp simultaneously.
Team discussion
Secure File Sharing
Unlimited team members
Outlook integration
Compatible with Microsoft Office
Cloud based
Document sharing
Voice Chat
Video Conferencing
Integrated File Sharing
Top 3 alternatives
Teamup Calendar
Freemium • Proprietary
Calendar App
Online
Android
iPhone
30 alternatives to Teamup Calendar
Unlike other calendar programs, Teamup does not require any user account. No signup, no login. Access to Teamup Calendar is as simple as opening a calendar link in your web browser. The calendar links can be shared with as many users as needed.
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Teamup Calendar Features
1. Real time collaborationMultiple users can work together in Teamup Calendar simultaneously.
Shared Calendar
Flexible reporting
Booking calendar
Year view
Top 3 alternatives
Wiggio
Paid • Proprietary
Team Collaboration Tool
Online
34 alternatives to Wiggio
Wiggio is an online toolkit that makes it easy to work in groups. With Wiggio you can:
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Wiggio Features
1. Real time collaborationMultiple users can work together in Wiggio simultaneously.
Shared Calendar
Discontinued
Wiggio has been officially closed
Top 3 alternatives
Cupla
Paid • Proprietary
iPhone
iPad
Android
10 alternatives to Cupla
Introducing Cupla, the ultimate relationship management app for busy couples.

See each other's calendars, create shared to-dos, send each other reminders, manage your date nights.

Cupla allows you to see your partner's complete schedule and share your schedule wit.
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Cupla Features
1. Ad-freeCupla doesn't contain any form of external advertising.
2. Calendar IntegrationCupla lets you sync your tasks and events with your calendar application.
3. Real time collaborationMultiple users can work together in Cupla simultaneously.
4. RemindersCupla allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
5. Sync with Google CalendarCupla can be synchronized with Google Calendar
6. Goal TrackingCupla can be used for tracking progress toward personal or business goals.
7. Recurring TasksCupla supports scheduling a task to recur at any frequency, such as daily or weekly.
8. Calendar ViewCupla has a built-in calendar view to have a clear overview of your content over time.
9. Privacy focusedCupla is considered a privacy friendly alternative.
Integration with Outlook calendar
Google Calendar integration
Shared Calendar
Compatible with Google Calendar
Top 3 alternatives
GeneralSync
Free • Proprietary
Calendar App
Windows
Linux
Android
Android Tablet
Microsoft Office Outlook
Thunderbird
13 alternatives to GeneralSync
GeneralSync provides shared calendars and address books that can be accessed from Thunderbird, Outlook and most Android apps – without storing anything in the cloud or on servers. Instead of relying on the Internet, data is transferred automatically when two or more devices are...
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GeneralSync Features
1. Privacy focusedGeneralSync is considered a privacy friendly alternative.
2. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
3. DecentralizedGeneralSync is based on a decentralized infrastructure with no single entity controlling it.
4. Works OfflineGeneralSync can be used without the need to connect to the internet.
5. End-to-End EncryptionGeneralSync has E2E Encryption, for entire or parts of the app.
6. No TrackingGeneralSync will not track you or use your personal data.
7. Ad-freeGeneralSync doesn't contain any form of external advertising.
8. Real time collaborationMultiple users can work together in GeneralSync simultaneously.
Calendar Sync
Sync Contacts
Contacts
Shared Calendar
Client side encryption
Android Sync
Family Calendar
GDPR Compliant
Direct P2P Sync
Privacy
Top 3 alternatives
Noodle Intranet Software
Paid • Proprietary
Windows
Linux
Online
23 alternatives to Noodle Intranet Software
Noodle is the social intranet software that improves communication, enhances collaboration, and encourages innovation in the enterprise. It brings microblogging, wikis, document sharing, instant messaging and other social business tools in a single portal.
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Noodle Intranet Software Features
Social intranet
Active Directory integration
Shared Calendar
Top 3 alternatives

Whaller Features

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Peergos Features

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Kopano Features

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Hitask Features

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Calendar Features

Top 3 alternatives

eXo Platform Features

Top 3 alternatives

PrivMX Fusion Features

Top 3 alternatives

Zoho Calendar Features

Top 3 alternatives

Axigen Features

Top 3 alternatives

IceWarp Features

Top 3 alternatives

Teamup Calendar Features

Top 3 alternatives

Wiggio Features

Top 3 alternatives

Cupla Features

Top 3 alternatives

GeneralSync Features

Top 3 alternatives

Noodle Intranet Software Features

Top 3 alternatives