Last updated: October 8, 2026
We updated these terms on 8 October 2026 to say plainly who is responsible for your data.
We updated these terms on 17 August 2026 to explain features your gym may now be using. Your gym sets up MyTrainerOS its own way, so much of what follows is written as "your gym may". Where you see that, it means the choice belongs to your gym and it may well be switched off.
A note on wording: older sections of this document call you a "Client" and newer ones call you a "member". They mean the same person — you, the person training at the gym.
These Client Terms of Service ("Client Terms") govern the use of MyTrainerOS by individuals working with a personal trainer, gym, or fitness coach ("Client", "member", "you", "your"). They supplement our general Terms of Service.
By accepting an invite from a trainer or creating a Client account, you agree to these Client Terms.
Your gym may charge a late-cancellation or no-show fee. Whether a fee applies at all, how much it is, and how much notice you must give are set by your gym — not by MyTrainerOS. Many gyms charge nothing. The platform starts with fee amounts set to zero, so nothing is charged unless your gym deliberately configures a fee and turns fee charging on.
Charging a fee and forfeiting a prepaid session are two independent settings, and your gym chooses each one on its own. Your gym may forfeit a session without charging you anything, charge you without forfeiting a session, do both, or do neither. Do not assume that because one happened, the other did.
Your gym is responsible for telling you its cancellation policy before any fee applies to you — what the fee is, when it applies, how much notice you must give, and whether a session is forfeited. If you have not been told, ask before you save a card. If you believe you were charged without having been told, raise it with your gym; our support team can explain what the platform recorded, but the policy and the money are your gym's.
Your gym pays MyTrainerOS for its own subscription, and it may move to a larger or smaller plan at any time. This matters to you only in one respect, and the answer is reassuring.
Your data is not deleted when your gym changes plan. If your gym moves to a smaller plan that allows fewer members than it currently has, some records are deactivated — hidden from day-to-day use and no longer counted against the plan. Deactivation is not deletion. Everything is retained in full, and if your gym moves back up to a larger plan, it is restored exactly as it was.
Your workouts, nutrition logs, health data, progress photos, messages, and ledger belong to your account and survive your gym's billing decisions. Data is deleted when you delete your account or ask us to delete your data — the routes described in "Your Data Rights" below — and not because of a change to somebody's subscription.
Your gym may use MyTrainerOS to send you email newsletters, campaigns, or text messages. Some gyms do, some never do. When you receive one, your gym is the sender — it chose the audience and wrote or approved the content. Your gym is responsible for contacting you lawfully, including obtaining your agreement before sending marketing texts.
How to stop it:
Opting out of marketing does not stop the messages you actually need: appointment confirmations, receipts, account and security notices, and replies from your coach.
Your health data is never used for marketing. Your workouts, nutrition, wearable metrics, body measurements, wellness check-ins, and any score calculated from them are not used to decide who receives a marketing message, to build audiences, or to prioritise sales outreach — not by us and not by your gym through our tools.
When you use MyTrainerOS as a Client, three parties are involved:
Your gym's and trainer's duties are set out in the Trainer Terms of Service.
As a Client, you have the following rights regarding your personal data:
MyTrainerOS uses artificial intelligence (AI) to enhance your coaching experience. By using the platform, you acknowledge:
Your coach approves anything AI writes to you. No AI-drafted message reaches you without a human coach reviewing and approving it first. When the platform drafts a reply to one of your check-ins, it goes into your coach's queue, not to you. Your coach can edit it, discard it, or write something else entirely. The AI & Algorithmic Transparency Notice explains this and every other AI feature in full.
MyTrainerOS is a fitness technology platform, not a medical provider. Workouts, nutrition information, and AI-generated recommendations provided through this platform are for informational and educational purposes only.
To the maximum extent permitted by applicable law:
We collect and process your data only with your explicit consent. You may grant or withdraw consent for individual categories at any time:
Your gym also holds records about your membership that are part of running its business rather than optional consents — your bookings and attendance, your ledger and payment history, and any fees charged or waived. These are kept for as long as the retention periods in our Data Retention Policy allow, including where tax law requires a financial record to be kept after your account is closed.
For complete details, see our Privacy Policy and Health Data Privacy Policy.
You may terminate your Client account at any time via Settings > Delete Account. After a 72-hour cooling-off period, your data will be permanently deleted (with limited exceptions for legal compliance).
If your trainer terminates services or removes you from their roster, your account will not automatically be deleted. You may continue using the platform with a different trainer or delete your account.
For questions about these Client Terms: