Terms of Service

Last updated: March 2026

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

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

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

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 Tier

The free tier provides:

Notion to Obsidian sync (pull only)
Up to 100 synced items
Unlimited databases
All supported block types and property types

The free tier is available indefinitely at no cost.

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

A free version and 14-day Pro trial (no credit card required) are available to try before purchasing.
No refunds will be issued for any purchases.
All sales are final.

7. Your Data

N2O is local-first — all synced content is stored on your device.
N2O does not collect, store, or transmit your content to any server other than Notion’s official API.
See our Privacy Policy for full details.
You are solely responsible for the content you sync and for maintaining backups.

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

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

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

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

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

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

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

15. Contact

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