Taking 3 projects this month

I build subscription AI apps for health and longevity companies

I turn expert and brand audiences into a working subscription AI product in 2–3 months. Without hiring a development team. With unit economics forecast at the start.

10 years in product
6 AI products in portfolio
3 markets: RU · UK · US
Vibe coding · Claude Code
Yanina Chizhevskaya — AI Product Manager
About

Yanina Chizhevskaya — product manager and vibe coder for health products

I launch AI apps and SaaS solo using Claude Code, Cursor and Lovable — 5–10× faster than hiring a team and 10× cheaper than classical development. Specialization: health, wellness, women's health 35+, fitness, nutrition, longevity. Built wellness Mini App for women 35+ (Periya) with cycle-adaptive logic. Spent a year as product manager at international face fitness platform MindBodyFace (US/UK/EU). Built MVP for nutrition startup Biogenom. 6 years as tech director of online nutrition schools.

Cases

Live AI products

In production · 2026

Periya

Wellness Telegram Mini App for women 35+ · @PeriyaApp_bot

Personalized nutrition and training plan with cycle, perimenopause, IF support. 4-phase cycle-adaptive logic, AI photo calorie estimation, pelvic floor, check-in, analytics. React 19 + Node + Prisma + PostgreSQL + Claude API.

2024 — 2025 · International

MindBodyFace

Face fitness · facial massage · natural facial rejuvenation · US/UK/EU

One year as product manager of international wellness portal and mobile app. Cross-continent team, content strategy, unit economics, Western natural-beauty competitor analysis.

In production · 2026

BreathFlow

Breathing practices Telegram Mini App · @BreathFlowAI_bot

4 techniques (Wim Hof, 4-4-4-4, 4-7-8, Buteyko). Web Audio API: whisper noise, 432/528 Hz background, Alpha/Theta/Schumann binaural beats. Single HTML, zero dependencies.

Startup · 2022 — 2023

Biogenom

Nutrition mobile app MVP · B2C / B2B2C

Full MVP development: CustDev interviews, market and competitor analysis, design and dev management, unit economics, marketing partner work, stakeholder management.

Corporate AI · 2023 — 2024

AI agents for business

Neurocopywriter · GPTs sales bot · Support chat bot

Launched LLM agents in production at international company: sales bot (closing deals, returning unhappy customers), support GPTs (onboarding in 2 days instead of 2–4 weeks), neurocopywriter on corporate data. Department headcount cost cut by half.

In testing · 2026

Lookbook AI

AI stylist and virtual try-on · look-ai.ru / room.look-ai.ru

AI try-on on two LLM providers (Claude + Gemini) with feature-flag switching and automatic fallback. Three tiers (50/150/300 generations), AI telemetry with billable-ops tracking, unified SEO with SSR prerender.

Services

Ladder of working with me

From a free diagnostic AI audit to a full launch in production. Each step has a concrete deliverable — concept, prototype, MVP, or an AI agent embedded in your team.

Free · Lead magnet

5-day AI audit for a health expert

In 5 working days I give you a clear picture: which AI app to launch for your audience, how much it could earn in 90 days, and what it takes. No obligation to work together after.

  • 60-minute 1:1 strategy session — your audience, content, current monetization
  • AI app concept tailored to your niche — what it does, what problems it solves
  • 12-month unit economics — LTV, CAC, MRR forecast in three scenarios
  • 90-day roadmap — week by week until first paying users
  • Comparison with 3 successful market analogs
  • AI stack for your case — what tools, what to invest in
  • Bonus: PDF "10 mistakes when launching an AI app in the health niche"
  • Bonus: 30-minute follow-up session in 14 days
$0
For the first 3 projects this month
Tier 1 · Concept

AI Concept Sprint — 14 days

Working concept + clickable prototype + investor-ready presentation + confirmed unit economics + dev-ready technical spec.

  • Deep product audit (8 hours)
  • Full UX flow of main screens
  • Clickable prototype in Lovable
  • 5 CustDev interviews with your target audience
  • Unit economics in 3 scenarios
  • Investor presentation (12 slides)
  • 3-minute video demo
  • Full technical spec
  • Branding direction
from $900
14 working days · Money-back guarantee
Tier 3 · B2B

AI implementation in your company + internal vibe coding

For health, medtech, and fitness companies that want to embed AI in the team or build internal automation and decision-support tools. Background: 10+ in-house AI projects, department FOT cut in half, trained team of 250.

  • AI audit — where AI gives fast ROI, where not to touch
  • 6-month implementation roadmap
  • Embedded AI agents: neurocopywriter, sales GPTs, support bot, analytical agent
  • Vibe coding internal tools: dashboards, assistants, automation
  • Team training on AI
  • 2–3 months of support to stable results
from $1,000
2-week audit · roadmap from $3,500
Partnership · Revenue share

Revenue share partnership

For bloggers, experts, and online schools in health/wellness/longevity with 50,000+ audience. I build you an AI app at my own cost, you get the working product and subscription revenue, I get a share in year one.

  • $0 from your side — all development, design, and infrastructure on me
  • Launch in 3–4 months
  • 20–30% of MRR during the first year
  • After year one — product is fully yours, no obligations
  • I own the product, you own the marketing through your audience
$0 upfront
2 partners per year · selected by audience and niche
Stack

What I work with

Stack chosen for the task — from a single HTML file to production with Postgres and background processing. Vibe coding with AI assistants wherever possible.

Claude CodeCursorLovable Google AI StudioGemini APIClaude API OpenAI GPTsNotebookLMMCP serversN8N React + TypeScriptNext.jsTailwindshadcn/ui Node + ExpressPrisma + PostgreSQLSupabase VercelVPS Telegram Mini AppsTelegram StarsStripe Python + FFmpegPlaywright FigmaFigma MCP Google Analytics 4PostHogAmplitudeMixpanel
Free AI audit

Get a concept + unit economics for your health audience in 5 days

Apply via Telegram — I usually reply within a business day. If your profile fits the health / wellness / longevity niche and you have an audience or business to launch an AI product on, we schedule a strategy session.

Write to me on Telegram →

Or email: chizhevskaya86@gmail.com