Mindfield eSense

Biofeedback training with the Mindfield eSense sensors: measure stress, train relaxation, guide your breathing, monitor HRV and muscle activity - live on your iPhone/iPad

The Mindfield eSense App turns your iPhone and iPad, together with the eSense Biofeedback sensors, into a comprehensive solution for stress measurement, relaxation training and self-awareness - in daily life, in training and coaching settings, and in research.

What is Biofeedback?

Biofeedback makes unconscious body signals such as skin conductance, skin temperature, pulse, breathing or muscle tension visible in real time. With targeted training you learn to influence these signals consciously - a scientifically well-documented approach for stress reduction and overall wellbeing.

Five sensors for precise biofeedback:

1. eSense Skin Response: measures skin conductance (EDA, GSR) as a direct stress indicator.
2. eSense Temperature: captures skin temperature for effective hand-warming training.
3. eSense Pulse: Bluetooth chest strap for accurate heart rate and heart rate variability (HRV) measurement.
4. eSense Respiration: breathing-belt add-on for the eSense Skin Response - captures breathing rate, depth and pattern.
5. eSense Muscle: measures muscle activity (EMG) for targeted relaxation and activation training.

Comprehensive app features:

• Customisable breathing pacer with breathing rate, hold times and resonance breathing
• Multimedia feedback through video, music, sounds, vibration and Philips Hue Smart Bulbs
• Adjustable training programs (procedures) for structured multi-step sessions
• Unlimited archive with ZIP export, CSV/PDF data analysis and per-sensor data wipe for shared devices
• Real-time thresholds for reactive video feedback (sharpness, brightness, colour)
• 14 languages, continuous updates, intuitive operation

Concrete use cases:

• Stress management and more recovery in everyday life
• HRV training and resonance breathing for autonomic balance
• Breathing exercises for mindfulness, sports and mental clarity
• Hand-warming training to support circulation
• Muscle relaxation for desk-bound tension
• Focus and performance training

Cloud functions and eSense Web App:

• Basic Plan: cloud storage of measurements and access to the eSense Web App (esense.live)
• Premium Plan: additional cloud storage of procedures, real-time streaming to the Web App and sharing of measurements
• Web App: simultaneous display of multiple sensors - ideal for group supervision and professional use

OSC and LSL streaming (In-App Purchase, optional):

For researchers and power users: stream your eSense data in real time directly from the app.

• OSC (Open Sound Control): to receivers like Max/MSP, Pure Data, TouchDesigner, Processing
• LSL (Lab Streaming Layer): to LabRecorder, OpenViBE, MATLAB, BCI2000, pylsl and other LSL-compatible research tools

Both protocols are bundled into a single In-App Purchase.

Who is the app for?

• Individuals who want to train stress, breathing and relaxation in a focused way
• Trainers and coaches for structured training sessions, with a multi-user-friendly archive on shared devices
• Researchers and universities for quantitative data collection with bridges to MATLAB, LabRecorder and custom LSL pipelines

Flexibility and mobility:

• Use at home, in a training or coaching setting, or on the go with iPhone or iPad
• Integration into daily life for regular biofeedback training
• Free app with continuous updates and fair value for high-precision biofeedback hardware

More information:

• Product overview and tutorials: mindfield-esense.com
• Order sensors and accessories: mindfield-shop.com
• FAQ & support: help.mindfield.de

With precise sensors, a versatile app and cloud functions, biofeedback integrates seamlessly into daily life, training and research.