Wendel Labs

Product sheet

Viteon

A longevity app that estimates your biological age from eleven questions, then gives you three actions a week to bring it down.

Publisher
Wendel labs LLC
Platforms
iPhone and Android phones
Languages
English, French
Model
Subscription, sold through the App Store and Google Play
Status
Pre-release. Not yet submitted to the stores.
  • App StoreComing soon
  • Google PlayComing soon
Illustrations of two Viteon screens, the assessment result and the Today tab, drawn in CSS from the app’s design tokens and English interface copy. The values are an example.

1What it does

Longevity advice is easy to find and hard to act on. Viteon turns it into a short list for the week.

It starts with an estimate. Eleven questions about sleep, activity, sitting time, screen time, sugar, alcohol, smoking and stress produce a biological age, shown next to your calendar age. No blood test and no wearable are involved.

Then it sets three actions for the week, each with its estimated effect on the score, and a daily protocol of hydration, daylight, breathwork, sleep and fasting. You log what you do, and every Sunday the estimate is revised from it.

2Who it is for

Adults who follow longevity research and want a short list of things to do each week, rather than more to read. Viteon is for people aged 18 and over.

3How it works

  1. 01Answer eleven questions

    Age, sleep quality and hours, how rested you feel, exercise, time spent sitting, screen time, sugar, alcohol, smoking and stress.

  2. 02See the estimate

    Viteon estimates a biological age and sets it beside your calendar age. The result is labelled as an estimate, for information only.

  3. 03Get three actions

    Each week the app sets three actions, such as logging sleep for five nights or completing three workouts, and shows the estimated effect of each on the score.

  4. 04Log the day

    Sleep, fasting, breathwork, workouts, hydration and the other daily protocols are logged in the app and synced to your account, so they follow you to a new phone.

  5. 05Sunday revision

    Every Sunday the estimate is revised from what you logged during the week.

4Inside the app

Fasting timer
16:8, 18:6, 20:4 or a custom window, with a stage guide and a contraindication check before longer fasts.
Breathwork
Guided box breathing and cardiac coherence sessions.
Sleep log
Hours and quality, night by night.
Workouts
An exercise library, eight ready-made plans, and a builder for your own.
Wellness tools
Hydration, weight and measurements, a meditation timer, cold and heat exposure, and a supplement stack.
Weekly review
Insights and a weekly report on what changed.
Share card
An image of your score, made on the phone, to send to someone if you choose.

5Specification

App
React Native 0.81, Expo SDK 54, Expo Router, TypeScript
On the device
Zustand and TanStack Query; MMKV storage encrypted with a key held in the system keychain
Backend
Supabase: Postgres with row-level security, Auth, Deno Edge Functions
Data access
Drizzle ORM schema with versioned SQL migrations
Sign-in
Email and password, Sign in with Apple, Google
AI
Anthropic Claude API, called only through a server-side proxy
Email
Resend, with signed one-click unsubscribe
Billing
App Store and Google Play subscriptions through RevenueCat. Server side built; in-app purchase being connected.
Analytics
PostHog, EU region, only with consent
Crash reports
Sentry, only with consent
Languages
English and French, through i18next
Devices
iPhone and Android phones, portrait

6Data and privacy

  • Analytics and crash reporting stay off until you switch them on. The first screen asks, and rejecting is one tap, the same as accepting.
  • Account data is stored by Supabase in the United States, and row-level security keeps each person’s rows readable only by them.
  • Data kept on the phone is encrypted, with the key held in the system keychain.
  • You can export your data as a file, or delete your account from Settings. Deletion erases your records from every table straight away.
  • No advertising, no ad networks, and no sale of personal data.

The full detail is in the privacy policy and the consumer health data notice.

7Health notice

Viteon is not a medical device, and it does not diagnose, treat or prevent any condition. Its biological age is an estimate, for information only.

Fasting, cold exposure and some other protocols are not safe for everyone. Talk to a doctor before starting if you are pregnant or breastfeeding, have diabetes, are underweight, have a history of eating disorders, or take regular medication. Stop and get medical advice if you feel unwell.

8Status and availability

Viteon is in pre-release. It has not yet been submitted to the App Store or Google Play, and in-app purchase is still being connected. When the listings are live, the store buttons on this page will open them. Prices will be shown in the store and in the app before any purchase.

Viteon is designed, built and published by Wendel labs LLC. Questions go to stanley@wendellabs.com.