← backkael

Terms of Service

Effective date: 2026-04-17  ·  Last updated: 2026-06-10

These Terms of Service ("Terms") govern your access to and use of the Kael applications on iPhone and Mac and any related services (collectively, the "Service"), provided by Kael ("Kael", "we", "us"). By installing, accessing, or using the Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.

For any questions, email admin@trykael.com.


1. What Kael is (and isn't)

Kael is a focus-and-productivity tool that helps you block distracting apps and websites on your Mac and iPhone and asks you to justify each unblock request. Kael is not a medical, therapeutic, or clinical service. It is not a substitute for professional mental-health care, addiction treatment, or medical advice. If you are in crisis, please contact your local emergency number or a qualified professional.

2. Eligibility

You must be at least 13 years old to use Kael. If you are under 18, you represent that you have permission from a parent or legal guardian. You agree to provide accurate information when creating your account and to keep that information up to date.

3. Your account

  • You sign in using Sign In with Apple or Google OAuth. You are responsible for the security of the Apple ID or Google account used. Use of Google Sign-In is subject to Google's Terms of Service and Privacy Policy.
  • You may not create an account through automation, or share your account credentials.
  • We may suspend or terminate accounts that violate these Terms, attempt to bypass rate limits, or abuse the AI judge service.

3.1 Connected Google services (optional)

If you choose to connect a Google account, Kael will request read-only OAuth scopes (calendar.readonly, gmail.readonly, openid, email). The Calendar scope is used to time blocking around your meetings and classes. The Gmail scope is used only on Kael Pro to read the subject, sender, snippet, and received timestamp of inbox messages received in the last 24 hours, every 30 minutes while the app is in use, in order to surface upcoming events and deadlines as "Suggested Tasks". Kael:

  • never reads email bodies, attachments, contacts, threads, or any message older than 24 hours;
  • never writes to, modifies, or deletes anything in your Google account (every requested scope is read-only);
  • never shares Google user data with third parties for advertising or transfers it to third parties except to perform the Suggested Tasks feature on your behalf (see Privacy Policy §1.3.2);
  • never uses Google user data to train AI/ML models.

You can revoke access at any time at myaccount.google.com → Security → Third-party apps → Kael, or from in-app Settings → Calendar Settings. Revocation immediately ends all calendar and Gmail reads.

Kael's use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

4. Acceptable use

You agree not to:

  1. Reverse engineer, decompile, or tamper with the Service except to the extent permitted by applicable law.
  2. Submit reasons or other content that is illegal, abusive, harassing, defamatory, or infringes a third party's rights.
  3. Attempt to inject prompts, exploit, or manipulate the AI judge to produce content outside the scope of unblock decisions.
  4. Scrape, crawl, or automate requests to the Service.
  5. Interfere with, overload, or probe the Service, its infrastructure, or other users' use of the Service.
  6. Attempt to bypass quotas, rate limits, or Family Controls in a way that would facilitate abusive or unauthorized access.
  7. Use the Service to build a competing product, or to train an AI/ML model.

Violation of §4 may result in immediate termination and, where applicable, legal action.

5. User content

When you submit reasons, schedule entries, or a display name, you grant us a worldwide, non-exclusive, royalty-free license solely to operate and improve the Service (e.g. running the AI judge, storing your history, showing you your own insights). You retain ownership of the content itself. You represent that you have the rights necessary to grant that license.

We may remove content that we reasonably believe violates these Terms.

6. AI judgments

Kael uses Anthropic's Claude API for three things: (1) judging your typed unblock reasons, (2) classifying your synced calendar entries as events vs deadlines (Kael Pro), and (3) extracting events/deadlines from recent Gmail subjects + snippets (Kael Pro). All AI output is advisory. We do not guarantee that the AI will always be accurate, consistent, or complete — Suggested Tasks may miss real items or surface things you would not have added; calendar categorization may mislabel an entry; reason judgments may approve or deny in ways you disagree with. You remain solely responsible for your own schedule, your own focus choices, and your own device usage. Always verify anything time-sensitive against the original calendar entry or email.

7. Pricing & Kael Pro

Kael's core features are free. Kael Pro is an optional auto-renewing subscription (monthly or yearly) that unlocks adaptive modes, the AI day planner, calendar sync, the Gmail scanner, and other Pro features. Pricing is shown in-app before purchase. Payment is charged to your Apple ID, and the subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID Account Settings. One subscription covers Kael Pro on both Mac and iPhone for the same Apple ID (Universal Purchase).

8. Changes to the Service

We may add, modify, or remove features at any time. We will provide reasonable advance notice for material changes that adversely affect you in a significant way.

9. Termination

You may stop using Kael and delete your account at any time via Settings → Account → Delete account or by emailing us at admin@trykael.com. We may terminate or suspend the Service or your account for violation of these Terms, for risk to the Service or other users, or for legal reasons. Sections §§4–6 and §§10–14 survive termination.

10. Disclaimers

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR SECURE. SOME JURISDICTIONS DO NOT ALLOW THESE DISCLAIMERS — IN THOSE JURISDICTIONS THEY APPLY ONLY TO THE MAXIMUM EXTENT PERMITTED BY LAW.

11. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, REVENUES, DATA, OR FOCUS TIME, ARISING OUT OF OR RELATED TO YOUR USE OF THE SERVICE. OUR TOTAL LIABILITY FOR ANY CLAIM RELATING TO THE SERVICE WILL NOT EXCEED THE GREATER OF USD 50 OR THE AMOUNTS YOU HAVE PAID TO US IN THE 12 MONTHS PRECEDING THE CLAIM.

12. Indemnification

You agree to indemnify and hold us harmless from any claim arising from your violation of these Terms, your content, or your misuse of the Service.

13. Governing law & disputes

These Terms are governed by applicable law, without regard to conflict of law principles. If your local law grants you mandatory consumer protections (e.g. EU consumer law), those protections apply regardless.

14. Miscellaneous

  • Entire agreement. These Terms and the Privacy Policy are the entire agreement between you and Kael.
  • Severability. If any provision is unenforceable, the rest remains in effect.
  • No waiver. Our not enforcing a provision is not a waiver.
  • Assignment. You may not assign these Terms without our consent. We may assign them in connection with a merger, acquisition, or sale of assets.
  • Contact. admin@trykael.com

Document last updated: 2026-06-10 — official Terms of Service. The 2026-06-10 revision extends the Terms to the Mac app, adds §3.1 (Connected Google services) covering the optional Calendar + Gmail integrations and Google API Services User Data Policy compliance, replaces §7 with the Kael Pro subscription terms, and extends §6 to scope the "advisory only" disclaimer over calendar categorization and email task extraction.

© 2026 Kael  ·  admin@trykael.com  ·  Privacy Policy