Terms of Use
Updated September 8, 2026
The service
Kinetic Index provides fitness test logging, progress summaries, and optional sharing. Keep your account credentials private, submit information you are entitled to share, and use the service without impersonating others, disrupting access, or attempting to access another account.
Meaning of scores
Scores describe recorded tests under the selected scoring version. They do not establish medical fitness, safe exercise intensity, occupational readiness, military eligibility, or a qualification. The bundled index and category weights are experimental. Review the scoring limitations and the protocol before using a result.
Free and paid features
Free accounts can log tests, retain history, compare checkpoints, and join friend challenges. Pro currently adds CSV export and supports development. Stripe Checkout shows the currency, amount, renewal interval, and payment terms before you pay. Manage Billing provides subscription management even when paid access has ended. Contact support about billing problems or refund requests.
Your records and sharing
You remain responsible for the information you submit. Public profile sharing and challenge participation are optional. Other people may copy information you choose to share. Account deletion removes your app records and any challenges you created; it does not itself cancel recurring billing.
Support and changes
The service may change and can be interrupted. Contact brett@thinkthunk.io for support, billing questions, or concerns about these terms. Nothing on this page removes rights you have under applicable law.