Terms of Service
These terms are the agreement between you and Qi Design Studios Pte Ltd (“we”, “us”) covering your use of the TautFit app and website. By downloading or using TautFit you accept them. If you do not accept them, do not use the app.
TautFit is not medical advice. It is a training log and an analytics tool. It does not know your medical history, and neither its recommendations nor its AI coach are a substitute for a doctor, physiotherapist, or qualified trainer. See section 8 — it is the most important part of this document.
1. Your licence to use TautFit
We grant you a personal, non-transferable, non-exclusive licence to use TautFit on Apple devices you own or control, as permitted by the App Store Terms of Service. You may not copy, redistribute, sell, reverse-engineer, or attempt to extract the source of the app, except where that restriction is prohibited by law.
Apple's Licensed Application End User Licence Agreement also applies to your use of the app. Where it conflicts with these terms, these terms govern to the extent they are more protective of you.
2. Accounts
You can use most of TautFit without an account. Signing in with Apple is required for cross-device sync, a Pro subscription, and extended use of the coach. You are responsible for the Apple ID used to sign in. You must be at least 13 years old, or the minimum age of digital consent where you live, whichever is higher.
3. Subscriptions and billing
TautFit Pro is an auto-renewing subscription sold through the App Store.
- Price — $9.99 per month or $59.99 per year, or the equivalent in your local currency as shown in the app before you purchase.
- Free trial — new subscribers get 14 days free. If you cancel before the trial ends you are not charged. Any unused portion of a free trial is forfeited if you buy a subscription during the trial.
- Renewal — payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless you turn off auto-renew at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends.
- Managing and cancelling — you can manage or cancel at any time in your Apple Account settings. Cancelling stops the next renewal; it does not shorten the period you have already paid for, and you keep Pro until that period ends.
- Refunds — purchases are handled by Apple, so refunds are governed by Apple's policy and requested through Apple, not us. We cannot issue refunds for App Store purchases directly.
- Price changes — if we change the price, Apple will notify you and ask for your consent before the new price takes effect. Your existing period is never repriced.
4. The free tier
TautFit's free tier includes unlimited logging and the full on-device analytics engine, plus a weekly allowance of AI-powered features. We intend to keep the free tier generous, but the specific allowances are not contractual commitments and may change as running costs change. If we materially reduce them we will say so in the app before the change applies. Features you have already paid for as part of Pro will not be moved behind an additional charge during a period you have paid for.
5. Your data and content
Your training data is yours. You keep all rights to it. You grant us only the narrow licence needed to run the service — to store your data, sync it between your devices, and process it to produce the analytics and coaching you asked for. We do not sell it, use it for advertising, or use it to train AI models. Our Privacy Policy explains this in full and forms part of these terms.
You can export everything you have logged as a CSV file at any time, and deleting your account erases your data from our servers. You are responsible for keeping your own copies of anything you would be upset to lose.
6. AI features
The coach, exercise resolution, and program design use a language model. Language models are wrong sometimes, confidently. Treat their output as a suggestion to evaluate, not an instruction to follow. We do not guarantee that AI-generated advice is accurate, complete, or appropriate for you.
The weights, reps, distances and times you log are parsed by a deterministic parser rather than a model, so your recorded numbers are not subject to model error. If you ever find a logged number that does not match what you entered, that is a bug and we want to hear about it.
7. Acceptable use
You agree not to:
- use TautFit for any unlawful purpose, or to harass or harm anyone;
- attempt to bypass free-tier limits, subscription checks, or authentication;
- automate, scrape, or overload our servers, or use the coach as a general-purpose language model API;
- upload content that is illegal, or that infringes someone else's rights;
- attempt to gain access to another user's account or data.
8. Health and safety disclaimer
Consult a qualified professional before starting or changing an exercise programme, particularly if you have an injury, a medical condition, are pregnant, or are returning to training after time away.
Strength training and conditioning carry an inherent risk of injury. TautFit's recommendations, progression targets, and coaching are generated from the data you enter and general training principles. They cannot see your form, your fatigue, your medical history, or how you feel today. You are solely responsible for deciding what you lift and how hard you train. Stop and seek medical help if you experience pain, dizziness, chest discomfort, or any symptom that concerns you.
TautFit is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or condition. Data imported from Apple Health is provided by your devices and is not clinically validated.
9. Availability and changes
TautFit works offline by design, so the core of the app keeps working when our servers do not. Sync and AI features need a connection and can be interrupted by maintenance, outages, or problems at our providers. We do not promise any particular uptime.
We may add, change, or remove features. If we remove something material from Pro, we will tell you in advance and, where the change substantially reduces what you paid for, you may request a refund of the unused portion through Apple.
10. Termination
You can stop using TautFit at any time by deleting the app, and delete your account from Settings. We may suspend or terminate your access if you materially breach these terms — in particular section 7 — and, where it is reasonable to do so, we will warn you first. If we terminate your account without cause, we will refund the unused portion of any paid period.
11. Disclaimers and liability
TautFit is provided “as is” and “as available”. To the fullest extent permitted by law, we disclaim all implied warranties, including merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the app will be uninterrupted, error-free, or that its analysis will be accurate.
To the fullest extent permitted by law, our total liability to you for any claim arising out of these terms or your use of TautFit is limited to the amount you paid us in the twelve months before the claim arose. We are not liable for indirect, incidental, or consequential losses, or for lost data, lost profits, or personal injury arising from your training decisions.
Nothing in these terms limits liability for death or personal injury caused by our negligence, for fraud, or for anything else that cannot lawfully be limited. If you are a consumer, you keep all statutory rights your local law gives you, and nothing here overrides them.
12. Apple
This agreement is between you and us, not with Apple. Apple is not responsible for TautFit or its content, and has no obligation to provide support for it. Apple is not liable for any claim relating to the app, including product liability, regulatory compliance, or intellectual property claims. Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you.
13. Governing law
These terms are governed by the laws of Singapore, and the courts of Singapore have non-exclusive jurisdiction over any dispute. If you are a consumer, this does not deprive you of the protection of the mandatory laws of the country where you live, or of your right to bring proceedings there.
14. Contact
support@tautfit.com
Qi Design Studios Pte Ltd
60 Paya Lebar Road, #06-28 Paya Lebar Square,
Singapore 409051