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  • Nucleus: AI Health Assistant screenshot 1
  • Nucleus: AI Health Assistant screenshot 2
  • Nucleus: AI Health Assistant screenshot 3
  • Nucleus: AI Health Assistant screenshot 4

About Nucleus: AI Health Assistant

Unlock the hidden code of your body with Nucleus—your ultimate AI-powered health and schedule co-pilot. Stop guessing what your fatigue means. Nucleus seamlessly integrates with Apple Health to decode your physiological data (HRV, Sleep, Active Energy) and converse with you in real-time, helping you optimize your daily routine like a pro. No subscriptions. No paywalls. 100% Unlimited Access. Powered by the state-of-the-art DeepSeek V3 model, Nucleus is entirely free to use. CORE FEATURES: • AI-Driven Smart Scheduling: Just chat with Nucleus. Tell it you are tired, say "Yes" to a proposed recovery plan, and watch it instantly generate an actionable schedule card for your day. • Deep Health Decoding: Understand what your Resting Heart Rate or sleep quality actually means. Nucleus finds the hidden correlations between your metrics and your energy levels. • Seamless Apple Health Sync: Securely connects with HealthKit to provide personalized, context-aware insights without any manual logging. PRIVACY BY DESIGN: Your data is yours. Nucleus operates on a highly secure, cloud-native architecture. • Zero Training: Your personal health data and conversations are NEVER used to train our AI models. • Ephemeral Processing: Health metrics are analyzed in real-time to provide insights and are never permanently stored on our servers. MEDICAL DISCLAIMER: Nucleus is designed for informational and fitness tracking purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician regarding any medical condition.

What’s new

Version 2.0 · Updated March 6, 2026

Smoother AI Conversations: The chat interface now automatically tracks your conversation flow, ensuring you never miss a beat when interacting with your AI co-pilot. Context-Aware Scheduling: Our AI is now smarter and less intrusive. It accurately understands when you are just chatting and when you actually need to schedule a session, offering calendar actions only when necessary. Performance & Stability Upgrades: We've rebuilt the backend infrastructure to provide faster, more reliable AI responses and session management.

App privacy

The developer, Qi Li, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Identifiers: User ID
  • Purchases: Purchase History
  • Contact Info: Email Address

Used for: Analytics, Product Personalization, App Functionality

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Health & Fitness: Health, Fitness

Used for: Analytics, Product Personalization

Alternatives to Nucleus: AI Health Assistant

Looking for apps like Nucleus: AI Health Assistant? Here are 6 similar apps on the App Store. The highest rated is Nourish - Gut Health Tracker (5.0/5), and all 6 are free to download.

Nucleus: AI Health Assistant vs. alternatives
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Nucleus: AI Health Assistant – Free March 6, 2026
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BodBot AI Workout Planner 4.8 / 5 (2,896) Free Sep 8, 2026 Compare
Sonar - Health & Performance 4.6 / 5 (336) Free Jul 22, 2026 Compare

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