KERN requires an account to save your routines and track your workout history across sessions. Registration takes less than a minute, and you are automatically logged in the moment your account is created — no email confirmation needed.Documentation Index
Fetch the complete documentation index at: https://mintlify.com/jaimegayo/KERNDOCUMENTATION/llms.txt
Use this file to discover all available pages before exploring further.
What you need before you start
- The KERN app installed on your Android device
- A valid email address
- A username you want to use inside the app
Open the app and tap 'Empezar'
When you launch KERN for the first time, you will see the welcome screen. Tap the Empezar (Get Started) button to begin creating your account.
Fill in the registration form
Enter your details in the sign-up form:
| Field | Required | Notes |
|---|---|---|
| Username | Yes | Must be unique across all KERN users |
| Yes | Used to identify your account at login | |
| Password | Yes | Never stored in plain text — see security note below |
| Full name | No | Optional display name |
| Phone | No | Optional contact detail |
You do not need to verify your email before using KERN. Your account is active and ready as soon as you submit the registration form.
Your password is hashed using SHA-256 before it is stored. KERN never holds your password in plain text, even internally.
What happens after registration
Once your account is created, KERN automatically:- Issues a JWT (JSON Web Token) to authenticate your session
- Sets your account to the initial state (
has_completed_quiz: false) - Redirects you to the fitness questionnaire to generate your first routine
Next step
Set up your fitness profile
Complete the one-time questionnaire so KERN can generate a personalised routine for you.