PrismCoach
Synalux LLC Health & Fitness iPhoneiPadiPod touchApple Watch
PrismCoach is a free Health & Fitness app for iPhone and iPad by Synalux LLC. Requires iOS 18.0. Updated October 21, 2026.
- Price
- Free
- on the App Store
- Size
- 2.2 GB
- Age 4+
- Updated
- Oct 21
- 2026 · v1.2.9
Screenshots
About PrismCoach
PrismCoach is an AI-assisted strength and recovery coach for iPhone, iPad, and Apple Watch. It reads your Apple HealthKit data — HRV, resting heart rate, sleep, and active calories — and uses a Muscle Battery system to track the recovery state of every muscle group in your body. PrismCoach is not medical advice. Consult a physician before starting any exercise program. AI-generated recommendations may be inaccurate. INTELLIGENT MUSCLE RECOVERY Use the interactive 3D anatomy model to record pain and choose training areas. Red marks recorded pain; cyan, green and orange show normal, light and heavy training selections. Pain reports stay active until you explicitly resolve them. Recovery estimates use available workout and biometric data; missing measurements remain unknown. AI COACH THAT KNOWS YOUR BODY Ask the built-in AI coach anything about your training. It can use available recovery, nutrition and readiness context to personalize responses. Generated workouts use your confirmed equipment, training goals and comfortable movements. Supports voice input and text-to-speech for hands-free interaction during workouts. AI responses are generated by language models and may be inaccurate — always verify with a qualified professional. BODY BATTERY & READINESS SCORE A single 0–100 score tells you how ready you are to train today. The Body Battery synthesizes HRV, resting heart rate, sleep quality, and cumulative training stress into one clear number. Requires Apple Watch and HealthKit connection for measured data. 12 PROVEN TRAINING PROGRAMS Browse curated programs including Starting Strength, StrongLifts 5×5, GZCLP, 5/3/1 Boring But Big, PHUL, Reddit PPL, Bodyweight Basics, Upper/Lower Split, nSuns 5/3/1 LP, Arnold Split, Power Building, and Full Body 3x/Week. Each includes structured sets, reps, rest periods, and progression schemes. All built-in programs are available without a subscription. CAMERA BODY SCAN Use your front camera for body pose detection — PrismCoach detects skeleton joint positions via Apple Vision framework to scale the 3D avatar to your body proportions. Equipment recognition sends a photo to a cloud AI for gym equipment classification. PRIVACY On-device AI processes most queries locally with no network. With cloud AI enabled, users’ queries and selected training context may be sent to Synalux servers and processed by Google Gemini; profile names, email addresses, and Apple IDs are excluded. When the user explicitly submits an Equipment Scan, that captured photo is also processed by Google Gemini. A first-run privacy choice allows on-device-only AI. Core tracking, built-in programs, and Body Battery features work offline. KEY FEATURES • 3D interactive muscle map with 33 tracked muscle groups • Body Battery readiness score (0–100) from Apple HealthKit • On-device AI coach with voice and text, with a recurring free allowance • Optional cloud AI coaching and workout generation, with a recurring free allowance • 12 proven strength and hypertrophy programs • Multi-language support with text-to-speech • Apple Watch companion with 6 tabs and complications • Workout streaks, adherence tracking, and share cards • Cycle-aware coaching for female athletes (Femme Engine) • BPM-synced music integration • Offline NLP meal logging with macro tracking Explore AI coaching, workout generation, equipment recognition and body scans with recurring free allowances. Pro provides higher AI limits and cross-device sync. Program review, editing, saving, starting and pain records are available without a subscription. Privacy Policy: https://synalux.ai/privacy Terms of Use: https://synalux.ai/terms
What’s new
Version 1.2.9 · Updated October 21, 2026
• Clearer next actions for saved workouts and workout history. • Illustrated exercise instructions and movement previews with supported equipment and muscle highlights. • Clearer equipment-photo review, retry and manual selection. • Updated coaching and workout flows in English, Spanish and French. • Requires iOS 18 or later.
App privacy
The developer, Synalux LLC, 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:
- Health & Fitness: Health, Fitness
- User Content: Photos or Videos, Other User Content
- Surroundings: Environment Scanning
- Purchases: Purchase History
- Contact Info: Email Address
- Identifiers: User ID, Device ID
- Diagnostics: Performance Data, Other Diagnostic Data
Used for: 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:
- Usage Data: Product Interaction
- Diagnostics: Crash Data
Used for: App Functionality
Alternatives to PrismCoach
Looking for apps like PrismCoach? Here are 6 similar apps on the App Store. The highest rated is Sun Exposure Time in Daylight (3.5/5), and all 6 are free to download.
-
Alphavex: Fitness & Nutrition
-
NoStress: HRV Stress Tracker
-
CrossFit Harbor East
-
Blue Crab CrossFit
-
Stress Calculator for watch
-
Sun Exposure Time in Daylight
3.5
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| PrismCoach | – | Free | October 21, 2026 | |
| Alphavex: Fitness & Nutrition | – | Free | Oct 9, 2026 | Compare |
| NoStress: HRV Stress Tracker | – | Free | Oct 21, 2026 | Compare |
| CrossFit Harbor East | – | Free | Feb 5, 2026 | Compare |
| Blue Crab CrossFit | – | Free | Feb 28, 2025 | Compare |
| Stress Calculator for watch | – | Free | Mar 25, 2026 | Compare |
| Sun Exposure Time in Daylight | 3.5 / 5 (2) | Free | Sep 17, 2025 | Compare |
Compare PrismCoach with the top alternatives: ratings, updates, ASO score and keyword gaps →