PlateOS terms of use

Last updated: 5 November 2026 · Beta (0.10.3)

These are the terms for using the PlateOS app. They are short and in plain English. By using PlateOS you agree to them. PlateOS is made by Plinthwork Studio Ltd (company number 17562742), 66 Paul Street, London EC2A 4NA ("we", "us").

Using PlateOS

• We give you a personal, non-exclusive, non-transferable licence to use PlateOS on iPhones you own or control, for your own training. Apple's standard licensed application end user licence agreement also applies; where the two differ, Apple's terms apply for anything they cover.
• PlateOS is for use in the UK only for now.
• You must be 13 or older. Before you sign in, PlateOS asks for your year of birth (optional) or for you to tick that you are 13 or older.
• Don't copy, sell, reverse engineer or misuse the app or our service, and don't try to access anyone else's data.
• Keep your sign-in secure. You are responsible for what happens under your account.

This is a beta

PlateOS is a test (beta) version. It will change, may contain mistakes, and may stop working or be withdrawn at any time. We will try to give notice if we withdraw it. Keep your own copy of anything you care about: you can export your data from inside the app.

During the beta, PlateOS is provided for testing, free of charge and "as is" to the extent the law allows. You use it at your own risk and judgement, subject to the section on our liability below.

Health, safety and your responsibility

PlateOS is a guide, not medical advice or coaching. PlateOS provides general information, suggestions and training guides, including exercise guides, recovery estimates, workout plans and suggested weights and repetitions. It is built from rules and the information you give it. It is not medical advice, physiotherapy, personal training or a substitute for a qualified professional, and it does not diagnose, treat or prevent any condition or injury.

Check before you train. Exercise carries a risk of injury. Before using PlateOS, or starting or changing any exercise programme, talk to a doctor or other suitably qualified professional, especially if you are pregnant, have or have had an injury, pain or a medical condition, or have been told to limit exercise. Do not use PlateOS's suggestions if a professional has advised you otherwise.

You are responsible for how you train. You decide whether and how to follow any suggestion. Use weights and intensity that suit you, start lighter than you think you need, use suitable equipment and a spotter where appropriate, keep to safe technique, and stop immediately if you feel pain, dizziness, unusual shortness of breath or anything that feels wrong, then seek medical advice. Guides, animations and figures show one general way to perform an exercise and cannot take account of your body, injuries, equipment or environment.

Recovery and suggestions are estimates. Recovery indicators, readiness, plans, suggested weights and any other figures are estimates based on what you have logged. They may be wrong. They are not a guarantee that a muscle is ready or that an exercise is safe for you.

Emergencies. PlateOS is not an emergency service. If you think you are injured or unwell, stop and get medical help. In an emergency, call 999.

Your data

Your training belongs to you. How we handle it is explained in the privacy policy.

• Saving your training to your account is part of the service. It means you do not lose your workouts, plans, favourites and settings if you lose or change your phone.
• You can export your data, and delete your account and everything we’ve saved about you, from inside the app at any time (You, then Account).
• When saving to your account starts, you have 10 days to keep your data on your phone only, and you can ask for 5 more days once. After 15 days in total, saving to your account is required to carry on using PlateOS, unless you delete your account. We never delete your data for you.
• Apple Health data stays on your device. It is never saved to your account.

Our liability

Nothing in these terms excludes or limits our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot be excluded or limited by law, and nothing affects your statutory rights as a consumer.

Subject to that, and to the extent the law allows:

• we are not liable for loss or injury that arises because you did not follow the "Check before you train" and "You are responsible for how you train" parts of these terms, or that was not a reasonably foreseeable result of our breach;
• we are not liable for loss of data, profit or business, or for indirect or consequential loss; and
• our total liability to you for any claim arising from your use of PlateOS is limited to £100 or the amount you paid us in the 12 months before the claim, whichever is greater.

Ending your use

You can stop using PlateOS and delete your account whenever you like. We may suspend or end access if these terms are broken or if we withdraw the beta.

Changes and law

We may update these terms; the date above will change, and if the change matters we will tell you in the app. These terms are governed by the law of England and Wales, and the courts of England and Wales can hear disputes, although if you live elsewhere in the UK you can use your local courts.

Contact

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