Last updated: 3/31/2026
1. Acceptance of Terms
By accessing and using Calsy ("the Service"), you accept and agree to be bound by the terms and provision of this agreement. If you do not agree to abide by the above, please do not use this service.
These Terms of Service ("Terms") govern your access to and use of Calsy, a calendar synchronization service that allows you to connect and sync multiple calendar platforms.
2. Description of Service
Calsy provides calendar synchronization services that allow users to:
- Connect multiple calendar providers (Google Calendar, Microsoft Outlook, Apple Calendar, CalDAV servers)
- Synchronize calendar events between connected platforms
- Choose between privacy sync mode (showing only "Busy" status) and full detail sync
- Manage calendar connections and sync preferences
- Access premium features through paid subscription plans
3. User Accounts and Registration
- Account Creation: You must create an account to use CalSync services
- Authentication: We use secure third-party authentication providers
- Account Security: You are responsible for maintaining the security of your account
- Accurate Information: You agree to provide accurate and complete information
- Account Responsibility: You are responsible for all activities under your account
4. Calendar Data and Permissions
By connecting calendar providers to Calsy, you grant us permission to:
- Access your calendar events from connected providers
- Read event details including titles, dates, times, locations, and attendees
- Create, update, or delete events for synchronization purposes
- Store calendar data temporarily for sync processing
- Respect your privacy settings and sync mode preferences
Important: You can revoke these permissions at any time by disconnecting calendar providers from your account.
5. Subscription Plans and Billing
Free Tier
- Limited to 2 calendar connections
- Basic sync functionality
- No additional features
Premium Subscription
- Unlimited calendar connections
- Advanced sync features
- Priority support
- Monthly or annual billing options
Billing Terms
- Subscriptions are billed in advance
- Payment processed securely through Stripe
- You may cancel your subscription at any time
- Refunds handled according to our refund policy
- Prices may change with 30 days advance notice
6. Acceptable Use Policy
You agree not to use Calsy to:
- Violate any applicable laws or regulations
- Infringe on intellectual property rights of others
- Transmit harmful, offensive, or inappropriate content
- Attempt to gain unauthorized access to our systems
- Reverse engineer or attempt to extract source code
- Use the service for commercial purposes beyond personal calendar management
- Overload our systems with excessive API requests
- Share account credentials with unauthorized users
7. Service Availability and Modifications
- Service Availability: We strive to maintain high service availability but cannot guarantee 100% uptime
- Maintenance: We may perform scheduled maintenance with advance notice when possible
- Service Modifications: We reserve the right to modify, suspend, or discontinue features with reasonable notice
- Third-Party Dependencies: Service availability may be affected by third-party calendar providers
8. Data Security and Privacy
- We implement industry-standard security measures to protect your data
- All data transmission is encrypted using HTTPS/TLS
- Calendar data is processed according to your privacy preferences
- We do not sell or share your personal data with third parties for marketing purposes
- See our Privacy Policy for detailed information about data handling
9. Intellectual Property Rights
- CalSync Ownership: We own all rights to the Calsy service, software, and documentation
- User Content: You retain ownership of your calendar data
- Limited License: We grant you a limited, non-exclusive license to use our service
- Trademark: "Calsy" and our logos are our trademarks
- Feedback: Any feedback you provide may be used by us without compensation
10. Disclaimers and Limitation of Liability
Service Disclaimers
- CalSync is provided "AS IS" without warranties of any kind
- We do not guarantee error-free or uninterrupted service
- We are not responsible for third-party calendar provider outages or changes
- Calendar sync accuracy depends on third-party API reliability
Limitation of Liability
To the maximum extent permitted by law, Calsy shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of profits, data, or other intangible losses.
11. Termination
- User Termination: You may terminate your account at any time
- Service Termination: We may terminate accounts for violations of these terms
- Data Deletion: Upon termination, your data will be deleted according to our data retention policy
- Survival: Certain provisions will survive termination (e.g., liability limitations, intellectual property)
12. Governing Law and Dispute Resolution
- These Terms are governed by applicable local laws
- Disputes will be resolved through binding arbitration when legally permitted
- You agree to resolve disputes individually, not as part of a class action
- Some jurisdictions may not allow certain limitations, so some terms may not apply to you
13. Changes to Terms
We reserve the right to modify these Terms of Service at any time. We will:
- Provide notice of material changes via email or service notification
- Update the "Last updated" date at the top of this document
- Give you the opportunity to review changes before they take effect
- Consider continued use of the service as acceptance of updated terms
14. Contact Information
If you have any questions about these Terms of Service, please contact us at:
Email: legal@calsy.app
Address: Calsy Legal Team
For technical support, please use our support channels within the application or contact support@calsy.app.