Terms of Use — GETSIXPACK

These Terms of Use (the “Terms”) govern your use of the GETSIXPACK mobile app and the website at getsixpack.app (together, the “Service”). The Service is operated by Data Sauna LLC, a Wyoming limited liability company (“we”, “us”). By creating an account or using the Service you agree to these Terms. If you do not agree, do not use it.

1. What the Service is

GETSIXPACK is a training log with a progression engine. You programme a rotation of workouts, log every set with its load, reps and effort, and the app reads that log to prescribe the next session — a load, a rep range and a rest interval, with the reasoning shown. It also reports weekly working-set volume per muscle against published training landmarks.

It is a tool for people who already train. It is not a coach, not a personal trainer, and not a substitute for either.

2. Eligibility

The Service is for adults. You must be at least 18 years old to create an account or use it. By using the Service you confirm that you are. We do not knowingly collect data from anyone under 18; if you believe a minor has created an account, email and it will be removed. See the Privacy Policy.

3. Your account

Sign-in is by one-time email link. There is no password, which means the security of your account is the security of your email inbox — anyone who can read your email can sign in as you. Keep it to yourself, and tell us if you think someone else has been in your account.

One account is one person. Your training log is yours: we do not publish it, there is no feed, and nothing you lift is visible to another user.

4. Training, injury and your own judgment

GETSIXPACK is a training log, not medical advice. The loads, rep ranges, rest intervals and volume figures it produces are calculated from the numbers you enter, by a model, with no knowledge of your health, your injury history, your technique, your sleep, or what the bar felt like on the way up.

Resistance training carries a real risk of injury, and the risk goes up with load. By using the Service you accept that risk and take responsibility for what you lift. Specifically, you agree that:

Every prescription is a recommendation, and the last decision is yours. If the app calls for a load that is wrong for you on the day, do not lift it. The app cannot tell the difference between a hard set and a dangerous one; you can.
You are responsible for your own warm-up, technique, equipment, spotting and training environment. Nothing in the app teaches you how to perform a movement safely, and the technique notes it does show are reminders for people who already know the lift.
You should consult a qualified physician before starting or changing a training programme, particularly if you have any injury, medical condition, or symptoms during exercise. Stop and get medical help if something hurts in the way injuries hurt.
Any bodyweight, heart-rate or other figure shown in the app is informational. It is not a diagnosis, not a fitness assessment, and not a clinical measurement.

To the fullest extent permitted by law, you assume the risk of injury from your training and you release us from claims arising out of it — including injury, illness or loss, and including where you were following something the app suggested. This release covers ordinary negligence. It does not cover gross negligence, recklessness or intentional conduct, it does not apply where the law of your state or country does not permit it, and it does not affect a consumer right you cannot waive.

5. Accuracy, and what the numbers are worth

The progression engine is a model. It is explained rather than hidden — the app shows the score, the gate and the reasoning behind every prescription, and How the coach works describes the whole thing — but a model that is transparent is still a model. Estimated one-rep maxes are estimates, computed from a published formula and capped; training-volume landmarks are population figures from the research literature, not personal thresholds; and any projection about a future session is a projection.

We do not warrant that any figure the app produces is correct for you, and we do not promise a training outcome. Progress depends on far more than what a log can see.

6. Your data

Your training log belongs to you. We do not sell it, rent it, or share it with advertisers, and we do not use it to build a profile of you. What we store and why is set out in full in the Privacy Policy, which forms part of these Terms.

You can ask for a copy of everything held about you or for your account and all of its data to be deleted, at any time, by emailing . Deletion is deletion, not deactivation.

You grant us the limited licence needed to store, process and display your data in order to operate the Service for you — for example, to sync it between your devices and to compute your next prescription. That licence is for running the app and nothing else, and it ends when you delete the data.

7. Price

The app is currently provided free of charge, with every feature enabled. If we ever introduce a paid tier we will say so clearly and in advance, and any purchase would be made through the app store you installed from and governed by that store's own payment, refund and subscription terms as well as these.

8. Acceptable use

You agree not to:

Use the Service for any unlawful purpose, or in breach of these Terms.
Probe, scan or test the security of the Service, or attempt to access an account, database row or API response that is not yours. Access is enforced at the database with row-level security; trying to get past it is not research, it is unauthorised access.
Interfere with the Service or the infrastructure it runs on, including by automated requests at a volume a person could not produce.
Reverse-engineer or decompile the app, except to the extent that applicable law expressly permits it despite this restriction.
Scrape or bulk-download this website's content for redistribution, or to train a third party's model.
Resell, sublicense or offer the Service as part of a paid coaching or gym product without our written permission.

9. Intellectual property

The app, this website, their design, code, copy, icons and illustration are owned by us or our licensors. The GETSIXPACK name and brand are ours. Nothing in these Terms transfers any of it to you; you get a personal, revocable, non-exclusive, non-transferable licence to use the app on devices you own or control, for your own training.

Exercise names, and the training concepts the app implements — double progression, RIR autoregulation, volume landmarks — are common property of the field and are not claimed by us.

10. Availability and changes

We may change, suspend or discontinue any part of the Service at any time. This is an independent product, not a service with a contractual uptime commitment, and it can be offline. Where a change would remove something you rely on, we will give as much notice as the circumstances allow.

The app is built to keep working with no signal — sets are logged locally and queued for sync — but that is a design property, not a guarantee against data loss. Keep nothing here that you cannot afford to lose.

11. Apple App Store

Where you obtained the app from Apple's App Store, the following applies and prevails over anything inconsistent above:

Your licence to the app is a non-transferable licence to use it on any Apple-branded products that you own or control, as permitted by the Usage Rules in Apple's Media Services Terms and Conditions, except that the app may be accessed by other accounts associated with you through Family Sharing or volume purchasing.
These Terms are between you and us only, not with Apple. Apple is not responsible for the app or its content.
Apple has no obligation to provide maintenance or support for the app.
If the app fails to conform to any applicable warranty, you may notify Apple and Apple will refund the purchase price, if any. To the maximum extent permitted by law, Apple has no other warranty obligation whatsoever with respect to the app.
Apple is not responsible for addressing any claim by you or a third party relating to the app, including product liability, any failure to conform to a legal or regulatory requirement, and claims under consumer protection or similar legislation.
Apple is not responsible for the investigation, defence, settlement or discharge of any third-party claim that the app infringes that party's intellectual property rights.
You represent that you are not located in a country subject to a U.S. Government embargo or designated as a “terrorist supporting” country, and that you are not on any U.S. Government list of prohibited or restricted parties.
You must comply with any applicable third-party terms of agreement when using the app.
Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.

12. Disclaimer of warranties

The Service is provided “as is” and “as available”, without warranties of any kind, express or implied, including — to the maximum extent permitted by law — warranties of merchantability, fitness for a particular purpose, accuracy, non-infringement and uninterrupted availability.

13. Limitation of liability

To the maximum extent permitted by applicable law, we are not liable for any indirect, incidental, special, consequential or punitive damages, or for lost profits, lost data or lost training history, arising out of or in connection with your use of or inability to use the Service. Our total liability for direct damages arising from these Terms or the Service is limited to the greater of the amount you have paid us in the twelve months before the claim, or one hundred United States dollars (US$100).

Nothing here excludes or limits liability that cannot be excluded under applicable law, including for fraud, and any statutory consumer rights you cannot waive. If you are a consumer in the European Union or the United Kingdom, this includes liability for death or personal injury caused by our negligence, and your statutory rights are unaffected by these Terms.

14. Indemnity

You agree to indemnify and hold us harmless from claims, liabilities, damages and reasonable legal costs arising out of your breach of these Terms, your misuse of the Service, or your violation of any law or third-party right.

15. Termination

You can stop using the Service at any time and ask us to delete your account. We may suspend or terminate access if you breach these Terms or where necessary to protect the Service or other users. Sections that by their nature should survive — intellectual property, disclaimers, limitation of liability, indemnity, governing law — continue to apply after termination.

16. Governing law

These Terms are governed by the laws of the State of Wyoming, United States, without regard to its conflict-of-laws rules, and the state and federal courts in Wyoming have exclusive jurisdiction over any dispute. Nothing in this section prevents you from bringing a claim in the courts of your own country or state of residence where mandatory consumer-protection law gives you that right.

17. Changes to these Terms

We may update these Terms. The “Effective” and “Updated” dates at the top move when we do, and a material change gets an email to account holders rather than a silent edit. Continuing to use the Service after a change takes effect means you accept it.

18. Severability and entire agreement

If any provision is held unenforceable, it is limited to the minimum extent necessary and the rest stays in force. These Terms, together with the Privacy Policy and the Cookie Policy, are the entire agreement between you and us about the Service.

19. Contact

Data Sauna LLC, 30 N Gould St, Ste R, Sheridan, WY 82801, USA. Questions about these Terms: .