Terms of Service

Last updated: 12 October 2026

1. Agreement to these terms

These Terms of Service (“Terms”) govern your access to and use of MacerFitness, which includes our website, web application, mobile apps and related services (together, the “Service”). By creating an account, joining the waitlist, or otherwise using the Service, you agree to be bound by these Terms and by our Privacy Policy. If you do not agree, do not use the Service.

2. What the Service is

MacerFitness generates personalized training and nutrition guidance, such as workout programs, calorie and macronutrient targets, progress tracking, and automated estimates (for example, photo-based body fat estimates), based on information you provide about yourself, your goals, and your available equipment.

3. Not medical advice

The Service provides general fitness and nutrition information for educational purposes only. It is not medical advice, is not a medical device, and is not a substitute for the advice of a physician, registered dietitian, or other qualified health professional. Body composition estimates, calorie targets, and training recommendations are approximations and may be inaccurate for your individual circumstances.

  • Consult a qualified health professional before starting any exercise or nutrition program, especially if you have (or suspect you have) any medical condition, are pregnant or have recently given birth, or are taking medication.
  • If you have, or have had, an eating disorder, or food and weight take up more of your thinking than you want them to, speak to your GP before you follow a weight-loss target. Beat, the UK's eating disorder charity, offers free support at beateatingdisorders.org.uk.
  • Stop exercising and seek medical attention if you experience pain, dizziness, shortness of breath, or other concerning symptoms.
  • Never disregard professional medical advice, or delay seeking it, because of something the Service told you.

4. Eligibility and your account

You must be at least 18 years old to use the Service. We ask for your date of birth when you set up your profile and cannot build a plan for anyone under 18. If we learn that an account belongs to someone under 18, we will close it.

You agree to provide accurate information when creating your account and completing onboarding, to keep your login credentials confidential, and to notify us promptly of any unauthorized use of your account. You are responsible for all activity that occurs under your account. Access may require an invite code during early access; invite codes are non-transferable unless we say otherwise.

5. Free trial, payments and cancelling

Free trial. New accounts start with a free trial that has limited features. We do not take payment details for the trial, so it cannot turn into a charge. It ends on its own.

Paid plans. Program Pass is a single payment with no expiry and the features described when you buy it. Pro is a subscription, billed monthly or yearly. The price, what you get and the billing period are shown before you pay, and prices include any tax that applies. Payments on the web are processed by Stripe, and we do not store your full card details.

Renewal. Unless stated otherwise at checkout, Pro renews automatically at the end of each billing period, for the same period and at the price then shown, until you cancel.

Cancelling. You can cancel Pro at any time through the billing portal in your account settings, or, if you subscribed in the mobile app, in your App Store or Google Play subscription settings. Cancellation takes effect at the end of the billing period you have paid for, and you keep access until then.

Price changes. We will tell you at least 30 days before a price change affects you. It applies from your next renewal after that, and you can cancel before it does.

Your 14-day right to cancel. If you are a consumer, you can cancel a purchase within 14 days of buying it without giving a reason, and we refund what you paid. Where you have asked us to start the Service straight away, we deduct a proportionate amount for what you have used up to the moment you told us. To cancel, email contact@macerfitness.com with a clear statement that you are cancelling. We refund to the original payment method within 14 days of getting your notice.

Other refunds. After the 14 days, fees are non-refundable except where the law requires a refund. If we withdraw a paid feature or end the Service for reasons other than your breach of these Terms, we refund the unused part of any period you have paid for.

Purchases through Apple or Google. If you buy in the mobile app, the App Store or Google Play takes the payment and handles cancellation and refunds under its own terms. Ask them for a refund of those purchases.

Your legal rights. If the Service is faulty or is not as we described it, the law gives you rights to a repair, a price reduction or a refund. Nothing in this section affects them.

6. Generated content

Parts of the Service are produced by automated systems. This output can be incomplete, inaccurate, or unsuitable for your situation, and you should apply your own judgment before relying on it. We do not guarantee any particular fitness, health, or body composition outcome from following generated plans or estimates.

7. Acceptable use

You agree not to:

  • use the Service for any unlawful purpose or in violation of these Terms;
  • upload photos of another person without their consent, or any content that is unlawful or infringes someone else's rights;
  • use the meal partner feature, or any other feature that reaches another user, to harass them or send them unwanted content;
  • attempt to probe, disrupt, overload, or gain unauthorized access to the Service, other users' accounts, or our infrastructure;
  • enter text meant to change how our automated systems behave or to get around their safety limits;
  • scrape, harvest, or bulk-extract data from the Service, or use automated means to access it except through interfaces we provide;
  • share your login with anyone else, or let another person use your account;
  • reverse engineer, resell, or commercially exploit the Service without our written permission;
  • circumvent usage limits, invite restrictions, or billing.

If you break these rules we may remove the content concerned, and suspend or close your account as described in section 10.

8. Your content

You retain ownership of the information and photos you submit to the Service. You grant us a limited, non-exclusive license to process that content solely to operate, provide, secure, and improve the Service for you, for example by sending your photos to OpenAI, which processes them for us to compute a body fat estimate. Details of how we handle your data are in the Privacy Policy.

9. Intellectual property

The Service, including its software, design, branding, and content we create, is owned by MacerFitness or its licensors and is protected by intellectual property laws. These Terms do not grant you any rights in the Service except the limited right to use it as intended.

Nutrition values for common foods come from McCance and Widdowson's Composition of Foods Integrated Dataset (Public Health England). Contains public sector information licensed under the Open Government Licence v3.0.

10. Termination

You may stop using the Service and delete your account at any time from inside the app. We may suspend or terminate your access if you breach these Terms, if required by law, or if we discontinue the Service. Where practical we will give you reasonable notice, and section 5 says what we refund. Sections that by their nature should survive termination (including disclaimers, limitations of liability, and intellectual property) do survive.

11. Disclaimers and limitation of liability

Nothing in these Terms limits or excludes our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for anything else that the law does not allow us to limit. If you are a consumer, you also keep your legal rights that digital content and services are as described, of satisfactory quality and fit for their purpose.

Subject to that, and to the extent the law allows, the Service is provided “as is” and “as available” and we give no warranty that it will be accurate or uninterrupted. We are not liable for indirect or consequential losses, or for injury that results from the exercise or nutrition choices you make, and our total liability for any claim relating to the Service is limited to the greater of the amount you paid us in the twelve months before the claim arose and £100.

12. Changes to the Service or these Terms

We are actively developing the Service and may change, add, or remove features at any time. We may also update these Terms. If we make material changes we will notify you (for example by email or an in-app notice) before they take effect, and continuing to use the Service after they take effect means you accept the updated Terms. If a change works against you, you can cancel and we will refund the unused part of any period you have paid for.

13. Governing law

These Terms, and any dispute or claim arising out of them or the Service, are governed by the laws of England and Wales, and the courts of England and Wales have exclusive jurisdiction. If you are a consumer resident elsewhere in the UK or EU, you keep the benefit of any mandatory consumer protections of, and the right to bring proceedings in, your country of residence. MacerFitness is operated from London, United Kingdom; registered company details will be added here once incorporation completes.

14. Contact and complaints

For questions about these Terms, or to make a complaint, contact us at contact@macerfitness.com. We aim to reply within 10 working days. If we cannot resolve a complaint, you may be able to use an alternative dispute resolution service, and we will tell you which when we reply.