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over 1,000 satisfied customers
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healthy posture
Healthy posture from day 1.
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Free shipping
0€ for shipping within Germany.
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Satisfaction guarantee
30-day return policy
Everything in basic package

Back sensor (for loan)
The patented sensor for your back.
- 3D measurement of your spine at 36 measuring points
- Vibration alarm in case of incorrect posture
Use:
- 2 months of use, then optionally extendable
- Free returns
Details:
- Size: LxWxH (410mm-510mm) x 44mm x 12mm
- Weight: 30g
- 24-hour battery life
- incl. USB-C charging cable
Sensor shirt
- Breathable undershirt
- Made of 95% cotton and 5% elastane
- Fits perfectly to the body and spine
- Optimized for the back sensor
- Easy insertion and removal of the sensor via push button
Rectify App
The app that gives you insights into your back.
- Recognize your posture in real time
- Evaluation of your posture throughout the day
- Create personalized vibration alerts - for optimal posture throughout the day
- Get access to hand-picked workouts specifically for your back (more information under "individual workouts")
Use:
- Lifetime Access - you always have access to the app, your posture analyses and the trainings
individual training
Receive a selection of back strengthening and relief exercises from our health coach.
The workouts are suggested based on your back data.
A workout lasts from 1 minute to 5 minutes.
You can also choose from over 20+ workouts.
Back Athlete Online Course
Only in Plus or Premium package!
Gain deeper insights into your back health.
At the end of the course you will receive a certificate that you can submit to your health insurance company to receive a refund of up to €250 .
Expert analysis
Only in the Premium Package!
In a personal online conversation, you will receive a concrete evaluation of your posture data.
Here, clear training and posture recommendations are discussed and you can ask your questions about back health and your posture.
At the end of the 30-minute conversation you will have:
- A clear understanding of your posture habits
- You know which postures you should avoid and how
- You know which exercises you can use to balance imbalances in your spine
Stay upright
Sitting up straight made easy
You are reminded of a healthy posture.
With the vibration alarm it will be hard to let yourself down.
Analyze your back
Recognize imbalances
The app helps you better understand your back. What postures do I often adopt? What are my weak points that cause pain?

the sensor is invisible
Remain incognito
You wear the sensor under your everyday clothes and it remains invisible to everyone. Only you know you're wearing your smart posture tracker!

individual training
Strengthen your back
Workouts tailored to your back help you activate, stretch, and strengthen muscle groups, exactly where you need them.

Make a healthy posture
...becomes a habit
After 8 weeks, you'll know what your back needs. You'll have broken bad posture habits thanks to the vibration alarm and developed healthy habits.
Alternatively, you can extend rectify.
FAQ
Frequently Asked Questions
How does the rectify sensor work?
The rectify sensor operates with 36 high-precision strain gauges that measure your spine almost perfectly.
The technology is visible to the naked eye. The 0.9-millimeter-thick PET protective layer encloses both the circuit paths and the strain gauges.
Not only does it look cool, it also delivers results - for your back!
For more information see How it works .
Why can I only borrow the sensor?
The sensor is a highly developed technology that costs us just under €1,000 per sensor .
Renting the sensor means for you:
- It is significantly cheaper
- If the sensor breaks - no problem , we will replace it for you
- Extend as long as you want
Buy a sensor?
Contact us here and we will make it possible for you.
Will the sensor bother me when I wear it?
In short: No.
The sensor weighs 30 grams and you'll quickly forget you're wearing it.
Until the sensor vibrates briefly to alert you to your incorrect posture.
You remain completely free in your movement.
How does rectify help me improve my posture?
Your posture has a direct impact on your back health and also on back pain!
The patented rectify sensor provides precise data on your lumbar and thoracic spine.
Based on the 3D data of your spine throughout the day, you can quickly identify poor posture and even receive real-time reminders. The sensor emits a short vibration alert when it detects that you're sitting or standing incorrectly.
In addition, you will receive first-class advice from our back coaches through individualized training and direct online consultation.
Order today and improve your posture!
How can I get up to €250 of my purchase back from my health insurance company?
8 weeks after purchase you will receive a training certificate from us, which you can submit to your health insurance company to receive a refund of up to 250€ .
We're happy to support you throughout the process. If you have any questions, please feel free to write to us .