›What Vayl is and what it isn't
What Vayl will and will not do.
Vayl is a tracking tool. It surfaces patterns in the data you log. It does not interpret your body for you. The contract below is stated explicitly so you never have to guess.
Always
6- Show patterns across everything you track
- Connect data that other apps keep separate
- Surface anomalies against your own baseline
- Export every record you log — PDF + CSV
- Run offline when signal is gone
- Stay yours when you stop paying
Never
6- Recommend a dose, diet, or training plan
- Tell you what your numbers mean — you decide
- Reward streaks, badges, or wellness rings
- Sell, share, or train models on your data
- Pretend to replace any human you trust
- Decide what is safe for your body