Skip to content
N2O Docs

Terms of Service

Last updated: June 2026

1. Acceptance

Section titled “1. Acceptance”

By installing or using N2O (“the Software”), you agree to these Terms of Service (“Terms”). If you do not agree, do not use the Software.

2. Description of Service

Section titled “2. Description of Service”

N2O is an Obsidian community plugin that provides two-way synchronization between Notion workspaces and Obsidian vaults. The Software communicates directly with the Notion API using your personal integration token.

3. License Grant

Section titled “3. License Grant”

N2O is released under the MIT License. You are granted a non-exclusive, worldwide license to use, copy, modify, and distribute the Software in accordance with the MIT License terms.

Pro Features

Section titled “Pro Features”

Certain features (“Pro Features”) require a paid license:

  • Pro Monthly: $8/month - access to all Pro features.
  • Pro Lifetime: $249 one-time - permanent access to all Pro features.
  • Free Trial: 14-day trial of Pro features, available once per user.

A Pro license key is non-transferable and valid for one user. License keys are purchased and managed through Gumroad.

4. Free Trial

Section titled “4. Free Trial”

New users receive a free 14-day trial that includes every feature:

  • Two-way Notion and Obsidian sync
  • Up to 300 synced pages
  • Unlimited databases
  • All supported block types and property types
  • Automatic syncing in and out, and custom templates

The trial is available once per user. There is no permanent free tier. When the trial ends, an active Pro or Lifetime license is required to keep syncing. Files already synced to your vault remain yours, but no further sync runs until you upgrade.

5. Payment & Billing

Section titled “5. Payment & Billing”
  • All payments are processed by Gumroad (gumroad.com).
  • Monthly subscriptions renew automatically until cancelled.
  • You can cancel your subscription at any time through Gumroad.

6. Refund Policy

Section titled “6. Refund Policy”
  • A free 14-day trial (no credit card required) is available to try every feature before purchasing.
  • No refunds will be issued for any purchases.
  • All sales are final.

7. Your Data

Section titled “7. Your Data”
  • N2O is local-first - all synced content is stored on your device.
  • N2O never transmits your note content to any server other than Notion’s official API.
  • Optional, sanitized sync diagnostics (on by default, opt-out in settings) may be sent to the N2O license server. They contain no note content. See our Privacy Policy for full details.
  • You are solely responsible for the content you sync and for maintaining backups.

8. Notion API Dependency

Section titled “8. Notion API Dependency”
  • N2O relies on the Notion API to function. Changes to the Notion API may affect N2O’s functionality.
  • N2O is not affiliated with, endorsed by, or sponsored by Notion Labs, Inc.
  • Notion’s API rate limits, availability, and terms of service apply to your use of N2O.
  • We are not responsible for Notion API downtime, changes, or data loss on Notion’s side.

9. Obsidian Dependency

Section titled “9. Obsidian Dependency”
  • N2O is an Obsidian community plugin and requires Obsidian to function.
  • N2O is not affiliated with, endorsed by, or sponsored by Obsidian (Dynalist Inc.)
  • Obsidian’s terms of service and plugin guidelines apply.

10. Disclaimer of Warranties

Section titled “10. Disclaimer of Warranties”

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT.

We do not warrant that:

  • The Software will be uninterrupted or error-free.
  • Sync operations will always be perfectly accurate.
  • The Software will be compatible with all future versions of Notion or Obsidian.

11. Limitation of Liability

Section titled “11. Limitation of Liability”

IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION WITH THE SOFTWARE.

You are responsible for maintaining backups of your data.

12. Modifications

Section titled “12. Modifications”

We reserve the right to modify these Terms at any time. Changes will be reflected in the “Last updated” date. Continued use after changes constitutes acceptance.

13. Termination

Section titled “13. Termination”
  • You may stop using N2O at any time by uninstalling the plugin.
  • We may terminate or suspend access to Pro features if license terms are violated.
  • Upon termination, your locally synced content remains in your vault.

14. Open Source

Section titled “14. Open Source”

The N2O source code is available under the MIT License. Community contributions are welcome and governed by the same license.

15. Contact

Section titled “15. Contact”

For questions about these Terms, email support@n2osync.com.