Terms of Use

By creating an account you agree to these terms and to our Privacy Policy. You must be at least 18 and give accurate information. Keep your password private; you are responsible for activity on your account.

K90 provides general fitness and nutrition guidance and coaching. It is not medical advice, diagnosis or treatment, and it is not a substitute for a doctor. Using K90 does not create a doctor-patient or any other professional healthcare relationship, and our coaches and KEI do not provide medical care. Check with a qualified professional before starting any exercise or nutrition program, especially if you are pregnant or breastfeeding, injured, have a medical condition (for example heart, blood pressure, diabetes or an eating disorder), or take medication. Stop exercising and seek care at once if you feel dizzy, faint, short of breath, in pain, or unwell. Never ignore or delay medical advice because of anything in K90.

Exercise and changes to what you eat carry risk, including injury, and in rare cases serious harm. When you tick the health box in the app you confirm that you are healthy enough to exercise, or that your doctor has cleared you to. You take part and follow any program, target or suggestion at your own risk and use your own judgment, and you can change, skip or stop anything. Calorie and macro targets are estimates for a typical adult, not a prescription: do not eat below a level your doctor considers safe for you.

Results depend on you: your starting point, effort, sleep, food and health. K90 does not promise or guarantee any weight, strength, body or health result, and examples or avatars show what is possible, not what will happen to you.

Programs and targets are built by K90's rules and, when your answers include anything that needs a closer look, reviewed by your Head Coach. A straightforward first program may start automatically, and your coach can adjust it at any time. Estimates such as calories, macros, and food-photo analysis can be wrong. Use your judgment. KEI, K90's AI coach, answers your questions from your own data, can make mistakes, and cannot change your program. K90 Max includes a review of your week by the K90 team, with AI help preparing it. It is guidance and oversight, not unlimited one-to-one personal training and not a medical service.

You own the data and photos you add. You give K90 and your coaches permission to use them to provide the service to you. Do not upload anything unlawful or that belongs to someone else.

Do not misuse the app, attempt to access other members' data, interfere with the service, or use it to harass others. We may suspend accounts that do.

Party workouts and crews are for training together. People in a party you join can see your first name and your progress during that workout, and crew members see only the totals described in the Privacy Policy. Be respectful, and do not use your name, avatar or anything you write to impersonate or insult anyone. Your avatar is a picture of you that you can change at any time. It is not a medical assessment, and K90 does not diagnose body composition or health. We may remove content or members that break these rules.

K90 Mini is free. K90 Pro and K90 Max are paid subscriptions. In the K90 Android app they are bought through Google Play, renew automatically until you cancel, and are charged and refunded under Google Play's rules. You can cancel any time in Google Play under Subscriptions, and you keep your plan until the end of the period you paid for. The K90 coach's time that comes with K90 Max is part of that subscription: there is no separate coaching fee, and K90 does not take any payment for coaching outside the app.

Features can differ by plan, and we may improve or change them. If a price changes, Google Play tells you before it applies to you and you can cancel before it does. Deleting your K90 account does not cancel a Google Play subscription: cancel it in Google Play under Subscriptions first, or you may keep being charged by Google.

The service is provided “as is.” To the extent the law allows, K90, its owners, coaches and staff are not liable for indirect or consequential losses, or for injury, illness or loss arising from your training, eating or other decisions, or from relying on an estimate, a program, an AI answer or any coaching. You agree to hold K90 harmless from claims arising from your use of the service or your breach of these terms. Nothing here limits rights you have under applicable law, or liability that the law does not allow to be limited.

These terms are governed by the laws of the Republic of the Philippines. We will try to settle any dispute with you in good faith first: write to the contact address below. If it cannot be settled, the courts of the Philippines have jurisdiction, unless the law where you live gives you the right to go to your own courts.

You can delete your account any time from Profile → Delete account, or see /delete-account. We may suspend or close an account that breaks these terms, and we will tell you why when we can.

If we change these terms in a meaningful way we will update the date above and, where appropriate, tell you in the app. Using K90 after a change means you accept it.

admin@k90fitness.com