Plain language, no traps.

These terms describe what Vayl does, what you agree to when you use it, and what neither of us is responsible for. They are short on purpose; long boilerplate hides things, and that is not the brand.

What Vayl is

An athletic data platform. You log what you do (training, food, supplements, what you take, sleep, biomarkers). Vayl organizes it on a single timeline and surfaces patterns and anomalies. That is the entire scope.

What Vayl is not

Not a medical device. Not a diagnostic tool. Not a doctor, coach, dietitian, pharmacist, or trainer.
Vayl never recommends anything, never prescribes, never tells you what to do. It reveals, you decide.
Not a substitute for professional advice. If a number concerns you, talk to a qualified human.

Your account

You are responsible for the accuracy of what you log and for keeping your credentials secure. One account per person. You can delete your account at any time (30-day grace for accidental deletion, then hard-deleted).

Pricing & payment

Vayl Pro is $11.90 for 30 days, or $89 for 365 days. Both give you the same Vayl, because there are no tiers.
Payment is cryptocurrency only, processed by NOWPayments. There is no card or bank path today.
You buy a period, not a subscription. Nothing renews automatically and there is nothing to cancel: access ends when the period you paid for ends.
Because nothing auto-renews, we do not issue refunds for a period already started. Buy the 30-day period first if you want to try the paid tier.
Prices are in USD.

Acceptable use

You will not reverse-engineer the product, share your account, or use Vayl to coordinate activity that is illegal where you live. We reserve the right to suspend accounts that abuse the platform, with a minimum 7-day notice except in cases of clear ongoing harm.

Liability

Vayl is provided "as is". To the extent allowed by your local consumer protection law (in EU: Directive 2019/770; in BR: CDC), our maximum aggregate liability is limited to what you paid us in the prior 12 months.

Changes

Material changes to these terms are posted on this page at least 30 days before they take effect, carrying the date they take effect. Because you buy a period and not a subscription, a change never applies backwards to a period you already paid for.

Jurisdiction

Governed by the laws of Portugal, without prejudice to mandatory consumer-protection rights in your country of residence.

Last updated · 2026-07-27