Gravity Terms of Service

Last updated: 25 June 2026

These Terms govern your use of the Gravity application (the "App" or "Gravity"), provided by Calibrate System Ltd, a company incorporated in England and Wales (company number 17109642), with registered office at 128 City Road, London, EC1V 2NX, United Kingdom ("we", "us", "our"). By using Gravity you accept these Terms. If you do not accept them, do not use the App.

1. The service

Gravity is a focus and digital well-being application: it helps you manage your time, reduce distractions, and complete focused work sessions.

Gravity is not a medical device and does not provide diagnosis, treatment, or clinical advice. We make no therapeutic or medical claims. If you have health needs, consult a qualified professional.

2. Eligibility and account

To use Gravity you must create an account (via Sign in with Apple, Google, or email) and be at least 16 years old. You are responsible for keeping your credentials confidential and for activity carried out through your account. Notify us at contact@trygravity.app if you suspect unauthorised use.

3. Licence to use the App

We grant you a personal, non-transferable, non-exclusive, revocable licence to use the App on Apple-branded devices that you own or control, in accordance with these Terms and with the Usage Rules of the Apple Media Services Terms and Conditions. This licence does not allow you to use the App on any device that you do not own or control, and you may not distribute or make the App available over a network where it could be used by multiple devices at the same time.

4. Subscriptions, payments and renewal

Some Gravity features require a paid subscription.

• Free trial: the subscription may include a free trial (its duration, if any, is shown in the App Store at the time of purchase). If you do not cancel before the trial ends, it automatically converts to a paid subscription.
• Plans: annual and monthly subscriptions, at the price shown in the App Store at the time of purchase (Apple displays the price in your local currency).
• Automatic renewal: the subscription renews automatically at expiry, unless cancelled at least 24 hours before the end of the current period, in accordance with App Store rules.
• Management and cancellation: purchase, management and cancellation happen exclusively through your App Store account (Settings → Apple ID → Subscriptions). We cannot manage or cancel the subscription on your behalf.
• Refunds: payments and any refunds are handled by Apple under its terms; we do not process payments or direct refunds.
• Right to cancel (consumers): where you have a statutory right to cancel a purchase of digital content, that right is handled through Apple as the seller. Because the App delivers digital content immediately, you acknowledge that, once supply has begun, any statutory cancellation/withdrawal right may no longer apply, to the extent permitted by law.

5. What happens when your subscription expires

If your subscription expires or is cancelled, access to paid features is blocked, but your data remains intact. We do not delete your work simply because the subscription has ended: re-activating a subscription returns you to your data exactly where you left it.

6. Acceptable use

You agree not to:

• use Gravity for unlawful purposes or in violation of others' rights;
• attempt to access our systems, or those of our providers, without authorisation;
• decompile, reverse engineer, or attempt to extract the App's source code, except to the extent permitted by law;
• resell, redistribute, or commercially exploit the App without our consent.

7. App-blocking feature — technical limits

Gravity offers app-blocking features based on the APIs made available by Apple (Family Controls / Screen Time). These features depend on the operating system and its limitations.

We do our best to make blocking as hard to bypass as possible, but we do not guarantee that it is impossible to bypass: some system-level actions (for example revoking permissions in the device Settings) cannot technically be blocked. Gravity is a tool to support self-discipline, not an insurmountable barrier.

8. Intellectual property

The "Gravity" mark, the name, the design, the content, the software, and the graphic elements of the App are owned by Calibrate System Ltd or its licensors and are protected by applicable laws. These Terms grant you no rights to them, other than the right to use the App as set out here.

9. Your responsibilities and indemnity

To the extent permitted by law, you agree to indemnify us against reasonable losses, damages and costs we incur in connection with third-party claims arising from your unlawful use of the App or your breach of these Terms. This does not apply to anything caused by us, and nothing in this section affects your mandatory rights as a consumer.

10. Suspension and termination

You may stop using the App and delete your account at any time. We may suspend or terminate your access if you materially breach these Terms or use the App unlawfully; where reasonable, we will give you notice first, except in cases of serious breach or legal requirement. Suspending or terminating your access does not, by itself, delete your stored data — see §5; deleting your account (from the App) does erase your data, as described in the Privacy Policy and on our Support page. You can delete your data at any time from the App.

11. Disclaimers and limitation of liability

To the maximum extent permitted by applicable law, the App is provided as available. We do not warrant that the App will be error-free or always available, nor that the blocking features will produce a specific result.

To the extent permitted by law, we are not liable for losses that were not reasonably foreseeable, or for indirect or consequential losses, or for loss of profits or goodwill, arising from the use of or inability to use the App. This does not exclude our liability for loss of your data caused by our failure to use reasonable care and skill.

Nothing in these Terms excludes or limits our liability where it would be unlawful to do so. This includes liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, and — if you are a consumer — your statutory rights in respect of digital content (including that it be of satisfactory quality, fit for purpose, and as described), which cannot be excluded or limited. If you are a consumer, you also keep all mandatory consumer rights provided by the law of your country of residence.

12. Third-party services

Gravity relies on third-party services to function, including Apple (App Store, sign-in, payments, Family Controls) and Google (Sign in with Google). Your use of those services is governed by their own terms and privacy policies. We are not responsible for third-party services we do not control.

13. Apple App Store — additional terms

These Terms are between you and Calibrate System Ltd only, and not with Apple Inc. ("Apple"). The following terms apply when you obtain or use the App through the Apple App Store:

• Acknowledgement. Apple is not a party to these Terms and is not responsible for the App or its content. We — not Apple — are solely responsible for the App.
• Scope of licence. Your licence to use the App is as set out in §3: a non-transferable licence to use the App on Apple-branded devices that you own or control, in line with the Usage Rules in the Apple Media Services Terms and Conditions.
• Maintenance and support. We — not Apple — are solely responsible for providing maintenance and support for the App, as described on our Support page. Apple has no obligation to furnish any maintenance or support services.
• Warranty. We are solely responsible for any product warranties, whether express or implied by law, to the extent not effectively disclaimed (this does not limit your statutory rights as a consumer). If the App fails to conform to any applicable warranty, you may notify Apple, and Apple may refund the purchase price (if any); to the maximum extent permitted by law, Apple has no other warranty obligation with respect to the App.
• Product claims. We — not Apple — are responsible for addressing any claims relating to the App or your use of it, including (i) product-liability claims, (ii) any claim that the App fails to conform to any applicable legal or regulatory requirement, and (iii) claims arising under consumer protection, privacy, or similar legislation.
• Intellectual property claims. In the event of any third-party claim that the App or your use of it infringes that third party's intellectual property rights, we — not Apple — will be solely responsible for the investigation, defence, settlement and discharge of any such claim.
• Legal compliance. You represent and warrant that (i) you are not located in a country that is subject to a U.S. Government embargo, or that has been designated by the U.S. Government as a "terrorist supporting" country; and (ii) you are not listed on any U.S. Government list of prohibited or restricted parties.
• Developer name and address. For any questions, complaints or claims regarding the App, contact us at contact@trygravity.app or at Calibrate System Ltd, 128 City Road, London, EC1V 2NX, United Kingdom.
• Third-party terms. You must comply with any applicable third-party terms of agreement when using the App (for example, your wireless data-service agreement).
• Third-party beneficiary. Apple and its subsidiaries are third-party beneficiaries of these Terms and, upon your acceptance, will have the right to enforce them against you as a third-party beneficiary.

14. Changes to the Terms

We may amend these Terms over time. When we do, we update the date at the top of the page and, if the changes are significant, we notify you in the App or on the Website. If a change materially reduces your rights, you may stop using the App and cancel your subscription. Continued use of the App after the changes take effect constitutes acceptance of the new Terms.

15. Governing law and jurisdiction

These Terms are governed by the law of England and Wales, and disputes are subject to the courts of England and Wales. If you are a consumer, this does not deprive you of the protection of the mandatory provisions of the law of your country of residence, and you may also be able to bring proceedings in the courts of that country.

16. General

• Severability. If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions remain in full force.
• Entire agreement. These Terms, together with the Privacy Policy, are the entire agreement between you and us regarding the App. This does not exclude liability for any fraudulent statement.
• Assignment. You may not assign your rights under these Terms without our consent. We may assign ours to a successor of our business, provided your rights are not reduced.
• Force majeure. We are not liable for failure or delay caused by events beyond our reasonable control.
• Language. The English version of these Terms is the legally binding version; translations are provided for convenience only.

17. Privacy

The processing of your personal data is described in our Privacy Policy.

Contact: contact@trygravity.app Provider: Calibrate System Ltd — 128 City Road, London, EC1V 2NX, United Kingdom (no. 17109642) Legally binding version: English.