141kg

Legal

Terms of Service

Version: 2026-05-23-d

Effective from: 23 May 2026

1. About these terms

These are the terms on which 141kg.com makes its software platform available to you. They form a contract between you and us. By ticking the acceptance box in the app, you confirm you have read these terms and agree to be bound by them.

Us: 141kg Ltd, a company registered in England and Wales under company number [COMPANY NUMBER], with registered office at Gables House, 62 Kenilworth Road, Leamington Spa, CV32 6JX. We trade as 141kg. You can contact us at admin@141kg.com.

You: the person who creates an account on the 141kg platform. If you are a personal trainer using the Tenant app, "you" means you in your business capacity. If you are a client of a personal trainer using the Client app, "you" means you in your personal capacity.

2. The platform

The 141kg platform is software for personal trainers (PTs) to plan and record training sessions, and for their clients to view and log their own training. It comprises three applications:

We make the Tenant app and Client app available to you under these terms. You access them over the public internet using a modern web browser. We may add, change, or remove features from time to time. Where a change materially reduces functionality you rely on, we will give reasonable notice.

3. Accounts

To use the platform you need an account. PT accounts are created by you directly. Client accounts are created by your PT when they invite you. You are responsible for keeping your login credentials secure and for any activity carried out under your account. PT accounts can enable multi-factor authentication (MFA) from the app settings; we strongly recommend doing so.

You must be at least 18 years old to create a PT account. Clients must be at least 16 years old to use the Client app, and we recommend parental supervision for clients under 18.

You must give us accurate information when creating your account and keep it up to date. We may suspend or close accounts where the information is materially inaccurate, where the account has been used in breach of these terms, or where we are required to do so by law.

4. What you can and cannot do with the platform

You can:

You cannot:

5. PT obligations regarding clients

If you are a PT, you are responsible for the relationship between you and your clients. The platform is a tool you use to provide your services; it does not replace your own contract with your clients.

Before adding a client to the platform, you must:

You acknowledge that for the personal data you enter about your clients, you are the data controller and we are your data processor. The terms on which we process that data for you are set out in our Data Processing Agreement, which forms part of these terms by reference and is available at https://legal.141kg.com/dpa/.

6. Pricing and tiers

The platform offers three tiers: Essential, Pro, and Elite. At present all features available on the Essential tier are free to use. Pro and Elite unlock additional features (for example, advanced analysis, recovery tracking, and dual client logging) and will become paid tiers when we activate billing for them.

When we activate paid tiers, we will tell you in advance and you can choose whether to upgrade. Continued use of the Essential tier on a free basis will remain available unless we publish a separate notice changing that.

If you sign up for a paid tier, the price, billing cycle, and what is included will be set out at the point of purchase. Payment terms for paid tiers will be added to these terms at that time.

7. Availability

We aim to keep the platform available at all times but we do not guarantee uninterrupted service. We may need to take the platform offline for maintenance, security, or technical reasons. We will give reasonable notice where we can.

The platform depends on third-party services including our hosting provider (Vercel) and our database provider (Supabase). If those services fail, our platform may be affected.

8. Your content and data

You retain ownership of the data you put into the platform (your account details, your clients' details, workout data, body weight records, notes). You grant us a licence to host, process, transmit, display, and back up that data to the extent necessary to provide the platform to you.

We process personal data in accordance with our Privacy Notice at https://legal.141kg.com/privacy/. If you are a PT, the processing of your clients' personal data is also governed by our Data Processing Agreement at https://legal.141kg.com/dpa/.

PTs can export their own and their clients' data from inside the Tenant app. Clients can request an export of their own data by emailing admin@141kg.com. We will provide it in a machine-readable format within 30 days.

9. Closing your account

You can close your account at any time by emailing admin@141kg.com. We will delete your account and associated data within 30 days of closure, except where we are required to retain certain information for legal, accounting, or regulatory reasons.

If you are a PT and you close your account, your clients' data on the platform will be deleted at the same time unless you instruct us otherwise. You are responsible for telling your clients that their access to the Client app will end.

We may close your account if you breach these terms, if your account is inactive for more than 24 months, or if we cease operating the platform. We will give you reasonable notice and a chance to export your data.

10. Our liability

Nothing in these terms limits or excludes our liability for:

Subject to that:

The platform is a record-keeping tool, not a medical, fitness, or coaching service. We do not provide training advice. Decisions about exercise, weight, nutrition, or recovery are between you and your PT (or your own judgement). We are not responsible for the consequences of those decisions.

11. Indemnity

If you are a PT, you agree to indemnify us against any claim brought by your clients or any third party arising from your use of the platform, including any breach by you of these terms or of UK GDPR. This does not apply to claims caused by our own breach of these terms.

12. Changes to these terms

We may update these terms from time to time. When we do, we will:

If you do not accept the updated terms, you will not be able to continue using the platform. You can close your account and request your data at that point.

13. Governing law and jurisdiction

These terms are governed by the laws of England and Wales. Any dispute will be subject to the exclusive jurisdiction of the courts of England and Wales.

14. Contact

For questions about these terms, contact us at admin@141kg.com.