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For researchers, coaches, performance teams and wellness programs

Introducing
eSSESSMENT

Build your protocol as a program of questions, guided breathing activities and optional camera readings of pulse rate, breathing rate and more. Participants run it in a few minutes on their phone, with no wearable devices to put on or charge, and your team can review every completed session.

For researchers, coaches, performance teams and wellness programs

Introducing
eSSESSMENT

Build your protocol as a program of questions, guided breathing activities and optional camera readings of pulse rate, breathing rate and more. Participants run it in a few minutes on their phone, with no wearable devices to put on or charge, and your team can review every completed session.

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VisitsCheck-ins

Day 7 check-in

Survey
4 answers
Pulse rate
64 bpm
Breathing rate
13 /min

How it works

You design it, participants take part on their phones, and your team reviews every session.

Design

Describe it to Claude

Add the Coherence connector, describe your protocol, and Claude builds it as a program. Or build it step by step in the Activity Builder, with a live phone preview.

Add the Claude connector

Deliver

Participants complete activities on their own phone

Invite participants by email or link. Coherence sends scheduled reminders and guides them through each activity, with prompts to capture quality readings. At the end, participants see a summary with what you choose to share.

Review

Your team reviews every session

Watch sessions a participant runs as they happen, or go back through any completed session in Playback and add notes.

  • Each answer sits next to its timestamped reading
  • You choose who on your team can review completed sessions

Building blocks

Customize your protocol

Questions, guided activities and camera readings of pulse rate and breathing rate, each with a confidence score for signal quality.

Steps in the Activity Builder

QuestionsYes or no, text, scale, number, choice or slider
CaptureA camera reading, 30 or 60 seconds, with questions during it
Breathing exercisePaced breathing on your timing
Multimedia reviewSurvey questions or camera readings while watching a video
Live sessionRun with an operator watching live

The science

Model cards

Each model card explains the testing conditions: the people tested, the reference instruments and the error against them.

See all model cards

Model cards

Open model card

Tested on all six skin types

Fitzpatrick types I to VI

  • I
  • II
  • III
  • IV
  • V
  • VI

Try it today

See what your participants see

Install Coherence and take a check-in yourself: the questions, the guided breathing and a camera reading, before you invite anyone.

Download Coherence

Free on iPhone and Android phones.

Coherence app icon
Download on theApp Store Get it onGoogle Play
Example programs

One set of steps, many protocols.

University research

Between lab visits

A baseline reading, 5 minutes of paced breathing, then a reading with a stress question.

Daily, evenings, for 30 daysAbout 8 minutes

Human performance research

Between testing days

A reading with sleep and soreness questions, 3 minutes of breathing, a repeat reading.

Training days, morningsAbout 6 minutes

Psychophysiology and breathwork

Before and after every practice

A reading with a tension question, guided box breathing, followed by the same question with a reading.

Monday, Wednesday, FridayAbout 7 minutes

Coaches and trainers

Before practice

A 30-second reading, a minute of breathing, then a reading with a readiness question.

Training days, before practiceAbout 2 minutes

Wellness programs

Between sessions

A 30-second reading with two questions shows staff how the week went before the next session.

WeeklyAbout 3 minutes

Your protocol

Bring us your protocol

Send an outline, without participant data, and we'll bring it back built as a program.

team@presagetech.com

Pricing

Start free. Pay per active participant.

Participants never pay. Your first three active participants are free every month, then $10 per participant per month.

eSSESSMENT

For your team

Design programs, invite participants and review every session.

Free to start$10/participant per month after 3

  • Free for your first 3 active participants each month
  • Team seats and programs are unlimited
  • Build with Claude or the Activity Builder

    Active participant: anyone who completes an activity that month, your team included.

    Start free

    Frequently asked questions

    Coherence, free, on an iPhone with iOS 17 or later or a supported Android phone. Download it from the App Store or Google Play. Live sessions also run on Apple silicon Macs and Windows PCs. Participants must be 18 or older.

    No. Coherence is free, and participants never pay. You pay only for active participants beyond the first three each month: $10 per participant per month.

    Browse your programs and create or update activities, saved as drafts for your team to check. It can't start readings, invite people or see results. Add the Claude connector.

    Every reading has a confidence score that shows its signal quality. Run a short pilot before you scale up.

    Export any session from Playback as JSON, CSV or a zip file, depending on what you want to download. For whole-study exports, tell us what your analysis needs before you recruit: team@presagetech.com.

    Send us your IRB's questions and we'll answer them in writing, before you recruit.

    No. eSSESSMENT and Coherence are for general wellness and research. Not for diagnosis or medical use.

    Still have questions? Email team@presagetech.com

    Build your first program

    Get started free with up to three participants.

    Start free

    Let us build it for you

    Share your protocol. We'll turn it into a program.

    Share your protocol