The short answer: No. You do not need a paid membership to use your Calibrex sensor.
The Calibrex hardware is yours to keep, and it will always function as a precision tracker without a subscription. We call this experience Calibrex Lite.
However, to unlock the AI-powered "Coach in your ear" and advanced velocity analytics, you will need Calibrex Premium.
Here is the breakdown of what is included in each tier:
1. Calibrex Lite (No Membership)
If you choose not to subscribe, your device still works as a high-precision digital logbook. You get:
Real-Time Tracking: View live reps, sets, and weight on your phone screen as you lift.
Free Train Mode: Just lift, and let the sensor count for you automatically.
Custom Workouts: Build and follow your own routines in the Workout Builder.
Basic History: View a log of your completed workouts.
2. Calibrex Premium (Membership)
The membership transforms the device from a tracker into a personal trainer. It unlocks the AI that interprets your data to tell you how to lift better.
Live Audio Coaching: Real-time feedback in your headphones (e.g., "Explode up!" or "Slow down the eccentric").
AI Progression: The app tells you exactly how much weight to add or remove based on your previous set's velocity.
Advanced VBT Scores: Unlock the Set Score, Difficulty Score (RPE), Speed Score, and Tempo Score for every lift.
Trend Analytics: Deep insights into your 1-Rep Max trends, muscle balance, and long-term progress.
Feature | Calibrex Lite (Free) | Calibrex Premium |
Precision Rep Counting | ✅ | ✅ |
Free Train Mode | ✅ | ✅ |
Custom Workouts | ✅ | ✅ |
Live Audio Coaching | ❌ | ✅ |
Target Velocity Zones | ❌ | ✅ |
Advanced VBT Scores | ❌ | ✅ |
AI Weight Recommendations | ❌ | ✅ |
Pricing:
The membership is $100 USD per year (equivalent to about $0.27/day) or $130 USD for two years (equivalent to about $0.18/day)