Transform your scheduling with allgram Calendar - featuring intelligent event management, seamless team collaboration, and enterprise-grade security with end-to-end encryption for all your calendar data.
Comprehensive guides and API references
Step-by-step setup and usage guides
Technical support and consultation
User forums and best practices
$2.99
$24.99
$9.99
$49.99
Custom Pricing
Everything from Professional License
True end-to-end encryption with client-side key management
On-premise, hybrid, or cloud deployment options
Role-based permissions and granular event access
Comprehensive insights into calendar usage and productivity
Integrates with allgram Chat, Meet, Files, and other services for a unified experience
Automatic timezone detection and conversion for international teams
Optimized for all devices with responsive design and offline capabilities
Built for organizations that demand reliability, security, and scalability
Professional features that set allgram Calendar apart from the competition
Join thousands of organizations who trust allgram Calendar for their most important events and meetings

Experience unprecedented connectivity with allgram Calendar's advanced integration capabilities. From enterprise calendar systems to popular productivity platforms, our calendar seamlessly connects with your existing workflow while maintaining enterprise-grade security and privacy.
Seamless synchronization with corporate calendars
Transform your enterprise scheduling with allgram Calendar's powerful integration capabilities. Connect seamlessly with Microsoft Exchange, Google Workspace, and other enterprise calendar systems. Our advanced sync engine ensures real-time updates across all platforms while maintaining strict security protocols and data integrity.


Seamless connection with all allgram services
Experience the power of true platform integration with allgram Calendar's native connectivity to all allgram services. Automatically create video calls through allgram Meet, initiate group chats for event discussions, and integrate with marketplace consultations. Every event becomes a hub for collaboration and communication.
Connect with your favorite productivity tools
Extend your calendar's reach with comprehensive third-party platform integration. Connect with Slack for team notifications, integrate with Trello for project management, sync with Zapier for workflow automation, and connect with CRM systems for customer relationship management. Our open API architecture ensures compatibility with virtually any platform.

Discover how allgram Calendar's advanced integration capabilities can streamline your workflow and enhance team collaboration.
Built with military-grade security standards and certified compliance frameworks for enterprise-grade trust in your calendar data
Federal Information Processing Standards compliance for cryptographic modules protecting your calendar data
International standard for information security management systems in calendar operations
Service Organization Control 2 compliance for cloud-based calendar security
allgram Calendar supports comprehensive event management with multiple event types:
allgram Calendar implements enterprise-grade security with end-to-end encryption (E2EE) and military-grade protection:
Peer-to-Peer (P2P) calendar sync means your events synchronize directly between devices without touching central servers:
allgram Calendar Enterprise includes advanced features designed for business and organizational use:
Yes! allgram Calendar offers comprehensive integration capabilities with enterprise and third-party systems:
allgram Calendar is built for scale, supporting teams of any size with advanced performance optimizations:
allgram Calendar is designed with mobile-first approach and comprehensive accessibility features:

Experience the next generation of secure, real-time messaging with enterprise-grade features
End-to-end encryption, P2P connectivity, and secure key management
Real-time messaging with WebSocket technology and optimized performance
Support for unlimited participants, groups, and enterprise deployments
"allgram Calendar has transformed our event planning process! The P2P architecture ensures our sensitive corporate events stay completely private. The recurring events feature saves us hours every week, and the automatic chat creation for each event keeps all participants perfectly synchronized. The timezone support is incredible for our global team."