# Helix: AI Fitness Coach — Recovery, Strain & HRV Tracker

> AI-powered fitness coach tracking recovery, strain, sleep, and bloodwork from wearables. (iPhone/iPad app by PRTCL10.)

- Source: https://appshunter.io/ios/app/helix-ai-fitness-coach/id6789951372 (this page in markdown: same URL + `.md`)
- Developer: [PRTCL10](https://appshunter.io/developer/1837508056)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 35 MB
- Languages: American English
- Released: 2026-08-07
- Data updated: 2026-08-29
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/helix-ai-fitness-coach/id6789951372/reviews.md

## What is Helix?

Helix is the complete engine for an athlete. Every system of your body — sleep, strain, recovery, strength and blood — measured from your Apple Watch and iPhone, connected, and turned into your next move.

YOUR MORNING NUMBER
Wake to a recovery score built from your HRV, resting heart rate, respiratory rate and wrist temperature, compared against your own baseline — not a population average. Confidence grows as Helix learns your body.

TRAIN WITH INTENT
Every workout earns a strain score from heart-rate load, so hard days count and easy days stay easy. Load balance tracks your acute vs chronic training load and shows when you are in the sweet spot — and when you are piling on risk.

SLEEP LIKE IT MATTERS
Sleep performance blends duration against your need, efficiency, deep and REM sleep and latency. Helix tracks sleep debt across the week and your sleep regularity — a measure that research links to long-term health more strongly than duration alone. No watch on? Helix can estimate your night from your iPhone.

GO DEEPER
• VO2max lab with a guided Cooper test and interval work
• Strength lab with per-muscle recovery and a full muscle map
• Physique and gym equipment scans powered by AI
• Bloodwork analysis: upload lab results and see them in context
• Nutrition logging with barcode and meal-photo scanning
• Menstrual cycle awareness for training guidance
• An energy plan that schedules your day around your body
• An AI coach that reads your numbers and tells you what they mean

ON YOUR WRIST AND HOME SCREEN
A standalone Apple Watch app with live readiness, Smart Stack complications, home-screen widgets and Live Activities. Earn badges and climb Game Center leaderboards as your fitness improves.

PRIVATE BY DESIGN
Your health data is processed on your device. No account, no ads, no trackers. The AI coach sees only anonymized numbers — never your identity or raw health samples.

HELIX PRO
Some features require Helix Pro, an auto-renewing monthly or annual subscription. Payment is charged to your Apple ID; subscriptions renew unless cancelled at least 24 hours before the period ends, and can be managed in your App Store settings.

Terms of Use: https://www.projecthelix.app/terms
Privacy Policy: https://www.projecthelix.app/privacy

Helix is not a medical device and does not provide medical advice.

## Key features

- Recovery score based on HRV, heart rate, and temperature
- Workout strain scoring and load balance tracking
- Sleep performance and debt analysis
- VO2max and strength labs
- AI-powered physique and equipment scans
- Bloodwork and nutrition logging
- Menstrual cycle awareness

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Helix Pro — Annual | $59.99 | per year |
| Helix Pro Annual — Special | $34.99 | per year |
| Helix Pro — Monthly | $9.99 | per month |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/helix-ai-fitness-coach/id6789951372/reviews.md

### 5/5 — Better than Bevel

*2026-08-12*

Love this app.

## Frequently asked questions about Helix

### What data does Helix use to calculate my recovery score?

Helix calculates your recovery score using your HRV, resting heart rate, respiratory rate, and wrist temperature. This is compared against your personal baseline, not a general population average, to provide a more accurate reflection of your body's readiness.

### How does Helix help with training intensity?

Helix assigns a strain score to each workout based on heart-rate load, ensuring that intense efforts are recognized and lighter days are appropriately managed. It tracks your acute versus chronic training load to help you stay in the optimal training zone and avoid overtraining.

### Can Helix track my sleep even if I don't wear my watch?

Yes, if you are not wearing your Apple Watch, Helix can estimate your sleep performance from your iPhone. It analyzes sleep duration against your needs, efficiency, deep and REM sleep, and latency, as well as sleep debt and regularity.

### What advanced analysis features are available in Helix?

Helix offers a VO2max lab with guided tests, a strength lab with per-muscle recovery and a muscle map, AI-powered physique and gym equipment scans, and bloodwork analysis where you can upload lab results for contextual interpretation.

### Does Helix offer personalized guidance?

Yes, Helix includes an AI coach that interprets your collected data and provides actionable insights. It also offers an energy plan that schedules your day around your body's current state and menstrual cycle awareness for tailored training guidance.

### What are the subscription options for Helix Pro?

Helix Pro offers monthly and annual subscription plans. The monthly plan is $9.99, the standard annual plan is $59.99, and there is a special annual plan for $34.99. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends.

### Is Helix available on other devices besides Apple Watch and iPhone?

Currently, Helix is designed for Apple Watch and iPhone, offering a standalone Apple Watch app, Smart Stack complications, home-screen widgets, and Live Activities. It is not available on Android devices at this time.

### Does Helix have ads?

No, Helix is ad-free. The app is designed with privacy in mind, processing health data on your device and not using ads or trackers. The AI coach only sees anonymized numbers.

## Version history (last 3 releases)

### 1.8.1 — 2026-08-11

Bug fixes on Stress Monitor

### 1.8 — 2026-08-09

Bug fixed for Recovery Calculation

### 1.6 — 2026-08-07

No release notes.

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All apps by PRTCL10: https://appshunter.io/developer/1837508056

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*