Terms of Service

By accessing or using Knosys and any associated services, including Knosys Cloud Sync, you agree to be bound by these Terms of Service. If you do not agree to these terms, do not use the service.

Knosys is a local-first personal knowledge management application. Your notes, calendar events, reminders, and other data are stored locally on your device by default. Knosys Cloud Sync is an optional paid subscription service that enables encrypted synchronization of your data across multiple devices.

Knosys Cloud Sync requires a paid subscription. All payments are processed by Paddle, our merchant of record. Paddle handles billing, invoicing, sales tax, and refunds on our behalf. By subscribing, you also agree to Paddle's Terms of Service.

Subscriptions renew automatically at the end of each billing period. You may cancel your subscription at any time through the Knosys desktop application or by contacting us. Cancellation takes effect at the end of the current billing period, and you will retain access to Cloud Sync until then. After cancellation, your data remains on your local device and is not deleted.

Knosys is designed with a local-first architecture. All of your content is stored on your device and remains under your control. If you opt in to Cloud Sync, your data is encrypted end-to-end before leaving your device. We do not have access to the plaintext content of your synced data.

We collect only the minimum information necessary to operate the service, such as your account email and subscription status. For full details, please refer to our Privacy Policy.

You agree not to use Knosys or Knosys Cloud Sync to:

• Violate any applicable laws or regulations
• Infringe on the intellectual property rights of others
• Distribute malware, spam, or other harmful content through the sync service
• Attempt to gain unauthorized access to our systems or infrastructure
• Use the service in any way that could damage, disable, or impair its operation

You retain full ownership of all content you create and store in Knosys. We claim no intellectual property rights over your data. The Knosys application, branding, and associated services are the intellectual property of Knosys and are protected by applicable copyright and trademark laws.

Knosys is provided “as is” and “as available” without warranties of any kind, whether express or implied. We do not warrant that the service will be uninterrupted, error-free, or free of harmful components.

To the maximum extent permitted by applicable law, Knosys and its developers shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of data, profits, or revenue, arising out of or related to your use of the service.

We reserve the right to suspend or terminate your access to Knosys Cloud Sync at any time if you violate these terms. You may stop using the service at any time. Upon termination, your locally stored data is unaffected. Synced data on our servers will be deleted within 30 days of account termination.

We may update these Terms of Service from time to time. When we make changes, we will update the “Last updated” date at the top of this page. Continued use of the service after changes are posted constitutes your acceptance of the revised terms.

If you have any questions about these Terms of Service, please contact us at support@knosys.app.