Nucleus: AI Health Assistant
Qi Li Health & Fitness iPhoneiPadiPod touch
Nucleus: AI Health Assistant is a free Health & Fitness app for iPhone and iPad by Qi Li. Requires iOS 26.2. Updated March 6, 2026.
- Price
- Free
- on the App Store
- Size
- 16 MB
- Age 17+
- Updated
- Mar 6
- 2026 · v2.0
Screenshots
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.
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Sonar - Health & Performance
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Nucleus: AI Health Assistant | – | Free | March 6, 2026 | |
| Nourish - Gut Health Tracker | 5.0 / 5 (8) | Free | Oct 6, 2026 | Compare |
| Body Insights for Apple Watch | 4.5 / 5 (65) | Free | Oct 27, 2026 | Compare |
| Push Up Counter: Pushanova | 4.6 / 5 (154) | Free | Nov 1, 2026 | Compare |
| Tracky: GLP-1 Tracker | 4.8 / 5 (303) | Free | Aug 28, 2026 | Compare |
| 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 |