Last updated: 05/03/2026

1. Acceptance of terms

By downloading, installing, or using the One app (“App”), you agree to these Terms of Service (“Terms”). If you do not agree, do not use the App.

2. Description of service

One is a calendar and reminders application that lets you create and manage events and reminders, receive local notifications, and (where available) sync data across your devices. The App may include in-app purchases for additional features or capacity.

3. Use of the service

You must use the App only in compliance with these Terms and applicable law. You are responsible for the accuracy of the content you add (events, reminders, notes). We do not guarantee availability of the App or any feature and may change or discontinue them with reasonable notice where possible.

4. Data and privacy

Your data is stored on your device and, if you use sync features, on our sync infrastructure. Our Privacy Policy explains what data we collect, how we use it, and your rights. Use of the App is also subject to the Apple Media Services Terms and Conditions and the App Store Terms of Use where applicable.

5. Subscriptions and payments

If the App offers subscriptions or other in-app purchases, payment will be charged to your Apple ID account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage and cancel subscriptions in your device’s App Store subscription settings. Refunds are subject to Apple’s refund policy.

6. Acceptable use

You may not use the App to violate any law, infringe others’ rights, distribute malware, or attempt to gain unauthorized access to any system or data. We may suspend or terminate your access if we reasonably believe you have breached these Terms.

7. Intellectual property

The App (including its design, code, and content we provide) is owned by us or our licensors. These Terms do not grant you any right to copy, modify, or redistribute the App except as necessary for normal use.

8. Disclaimers

The App is provided “as is.” We disclaim all warranties to the fullest extent permitted by law (including implied warranties of merchantability and fitness for a particular purpose). We do not guarantee that the App will be error-free, secure, or uninterrupted.

9. Limitation of liability

To the maximum extent permitted by law, we (and our affiliates, directors, employees, and agents) shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of data, revenue, or profit, arising from your use or inability to use the App. Our total liability shall not exceed the amount you paid us for the App or in-app purchases in the twelve months before the claim.

10. Changes