Effective Date: August 1, 2026

These Terms of Service ("Terms") govern your use of Diaryx, including the Diaryx apps for macOS and iOS, and the diaryx command-line tool (collectively, the "Service"). By using the Service, you agree to these Terms.

1. Description of Service

Diaryx is a local-first note-taking and journaling application. Your notes are plain files in a folder you choose on your own device; the app reads and writes that folder directly.

An account is optional. It exists to enable the online features:

  • Publishing — turning some or all of a workspace into a website, served on a free *.diaryx.org subdomain or on a custom domain you own
  • Audience gates — publishing at the visibility you choose, including public, link/token-protected, and password-protected

The Diaryx server is also available to self-host under the license in Section 7.

No cloud sync

Diaryx does not currently offer cloud sync. Nothing leaves your device except what you explicitly publish. Keeping a vault available across your own devices is something you arrange yourself — for example by putting the folder in iCloud Drive or another file-syncing service of your choosing — and any such service is governed by its own terms, not these.

If we add a sync feature later, we will describe it here before it applies to you.

2. Accounts

To use the online features you must create an account with a valid email address. Sign-in is by emailed link or code. You are responsible for maintaining the security of your account and of the devices signed in to it.

Each account may have a limited number of registered devices signed in at once. This ceiling is a security backstop against a leaked or shared credential, not a plan feature, and is set well above what any individual would reach. You can review and remove your registered devices in the app's account settings.

3. Subscription Plans

Storage figures below are decimal: 1 GB means 1,000,000,000 bytes.

Free Plan

The Free plan includes:

  • 1 workspace
  • 1 published site
  • 200 MB of attachment storage
  • A free *.diaryx.org subdomain for your site

Diaryx Plus

Diaryx Plus costs $4.99/month (USD) and includes:

  • Up to 10 workspaces
  • Up to 10 published sites
  • 100 GB of attachment storage
  • Up to 10 custom domains

The custom-domain allowance belongs to your account as a whole, not to each workspace. Free *.diaryx.org subdomains are not counted against it.

The price shown at the point of purchase is the price that applies. Plus subscriptions renew monthly until cancelled. You may cancel at any time:

  • Apple In-App Purchase (iOS/macOS): Via Settings > Apple ID > Subscriptions on your device.
  • Stripe (web): Via the Manage Billing page in Settings.

Cancelling stops future renewals; your Plus features remain active until the end of the current billing period. Refunds for purchases made through Apple are handled by Apple under its own policies.

We may change plan limits and pricing. If a change reduces what your existing plan includes, or raises its price, we will tell you before it takes effect.

4. Your Content

You retain all rights to the content you create with Diaryx. We do not claim ownership of your notes, entries, or attachments.

Content stored only on your own device is never transmitted to us. When you publish, the content you selected is uploaded to our servers and served at the audience level you chose. Removing it from your site removes it from our servers; it may persist briefly in caches and backups.

You are the publisher of anything you publish through the Service, and you are responsible for having the rights to publish it.

5. Acceptable Use

You agree not to:

  • Use the Service to store or distribute illegal content
  • Publish content you do not have the right to publish
  • Attempt to interfere with or disrupt the Service
  • Use the Service to send spam or unsolicited messages
  • Reverse-engineer the Service beyond what is permitted by applicable law
  • Exceed reasonable usage limits or abuse the Service infrastructure

We may remove published content, or suspend publishing for an account, in response to a valid legal complaint or a clear violation of this section, with notice when practicable.

6. Custom Domains

If you point a domain you own at the Service, you are responsible for that domain's registration and DNS. We provision and renew a TLS certificate for it while it is registered with us and pointed at us. Removing the domain from your account stops that.

7. Intellectual Property

The Diaryx software is closed source. All rights are reserved by Adam Harris as of 2026. Your use of the software is subject to that license, which means you may not copy, modify, reverse-engineer, or otherwise tamper with the Diaryx binary or its source code, though you retain all rights to the content you provide and interact with through the Service. Diaryx workspaces are based on the open-source software Prov, and users may alternatively interact with their workspaces through the Prov command-line interface. For more details, see LICENSE.

8. Termination

You may delete your account at any time. We may suspend or terminate your access to the Service if you violate these Terms, with notice when practicable.

Upon termination, your published sites are taken down and your uploaded data may be deleted from our servers. The files on your own devices are not affected — deleting your account does not delete your notes.

9. Disclaimers

The Service is provided "as is" without warranties of any kind, express or implied. We do not guarantee that the Service will be uninterrupted or error-free.

You are responsible for backing up your own data. Diaryx has no copy of anything you have not published.

10. Limitation of Liability

To the maximum extent permitted by law, Diaryx and its operators shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of data, profits, or goodwill, arising from your use of the Service.

Our total liability for any claim arising from the Service is limited to the amount you paid us in the 12 months preceding the claim.

11. Apple

For apps obtained through the App Store: Apple is not a party to these Terms and has no obligation to provide support or maintenance for the Service. Apple is not responsible for addressing any claim relating to the app, and Apple's maximum liability to you in the event of a defect is the purchase price, if any. You represent that you are not located in a country subject to a U.S. Government embargo and are not on any U.S. Government restricted-parties list.

Apple and its subsidiaries are third-party beneficiaries of these Terms, and upon your acceptance of these Terms Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary. We, not Apple, are solely responsible for the app, its content, and any maintenance or support for it, and for addressing any claims relating to it.

12. Changes to These Terms

We may update these Terms from time to time. If we make material changes, we will notify you via the Service or by email. Continued use of the Service after changes take effect constitutes acceptance of the updated Terms.

13. Governing Law

These Terms are governed by the laws of the State of Utah, United States, without regard to conflict of law principles.

14. Contact

If you have questions about these Terms, contact us at contact@diaryx.org.