Capture experienceas it actually happens.
High-fidelity data collection and analytics for scientific discovery — captured in the moment, on any device, anywhere in the world.
The institutions building on ExpiWell
From R1 research universities to global enterprises, teams around the world run their experience research on our platform.
Representative sample drawn from 10,000+ researchers across 20+ countries actively running studies on ExpiWell.
Retrospective surveys measure memory, not experience
Ask participants to recall how they felt over the past week or month and the data is often distorted by recall bias — a patient with mostly mild pain reports a high weekly average because of one severe flare-up yesterday.
Ask after the fact
- Participants come into a lab or fill out a survey about how they felt last week — and the data is distorted by recall bias.
- Memory keeps the peaks and the endings: one severe flare-up yesterday becomes a high weekly average — the “peak–end rule.”
- Logbooks filled out from memory are burdensome, so compliance drops and the gaps get filled in after the fact.
Ask in the moment
- Participants report current thoughts, feelings, and behaviors right now, in their natural environment.
- Actual scores are logged in real time — an accurate timeline, not a memory distorted by a single bad day.
- Push notifications prompt immediate responses — frictionless, bite-sized tasks that keep compliance high without overwhelming anyone.
“The flexibility of the scheduling is what sold us. We could adapt the study on the fly, which was crucial for our longitudinal research. The data quality is top-notch.”
One platform for modern research
Collect rich, multi-modal data in real-world contexts — from surveys to sensors, built for the dynamic nature of your research.
Adaptive Mobile Surveys
Capture thoughts, feelings, and behaviors as they happen — sophisticated EMA/ESM surveys with branching logic, diverse question types, and flexible scheduling.
Wearable & Sensor Data
Add objective context to every self-report — activity, sleep, and physiology collected passively from smartphone sensors and wearables like Apple Watch and Fitbit.
Geofenced Triggers
Run geographically explicit EMA (gEMA) — surveys trigger the moment participants enter or leave a place, so in-clinic, campus, and community studies capture context on site, not from memory.
Real-Time Analytics
Catch compliance dips before they become data gaps — monitor live, then view, filter, and export every data stream from one dashboard.
Cross-Platform
Meet participants on the phones they already own — seamless iOS and Android apps that keep compliance high and the journey consistent.
AI-Powered Research Insights
Go from raw data to findings faster — machine learning detects patterns and predicts outcomes across complex datasets, with voice and video transcribed automatically.
Three steps to collect experiences
We’re researchers too — so we built ExpiWell to make experience sampling a breeze, and to democratize the method for everyone.
Create
- Build your surveys and select the sensor data to collect
- Schedule your surveys and notifications
- Launch your project in minutes
Schedule
- Participants download the free iOS & Android app and join
- Surveys and sensor data adapt to each time zone
- Notifications keep compliance high
Launch
- Track response rates in real time
- Send reminders and anonymized payments
- Voice & video auto-transcribed via AI, then download
Data quality starts with the participant experience
Reach participants anywhere with seamless iOS and Android experiences that maximize compliance and ensure a consistent user journey — free native apps, available in 7 languages.
What our researchers are saying
From clinical trials to field studies, researchers around the world use ExpiWell to capture life as it’s lived. Here’s their work, in their words.
“ExpiWell is a GAME CHANGER for our research! It’s so easy to use, and the support team is always there to help. We were able to collect data from participants all over the world, and the results have been incredible.”
“Collecting multiple surveys from a small number of individuals is challenging. I chose to use ExpiWell because it makes this process easier by managing a timeline, automatically prompting participants to take surveys at predetermined times. ExpiWell is also ideal for confidentiality concerns, allowing researchers to communicate with participants through the platform without violating anonymity.”
“As a clinical researcher, I needed a platform that was flexible, reliable, and easy to implement. With ExpiWell, we were able to set up and deploy a JITAI-enabled study without requiring programming expertise. The system supported seamless participant engagement and real-time data collection, saving our team valuable time and resources.”
“As someone who isn’t a programmer, the no-code setup was a lifesaver. I designed and launched my entire ESM study in a single afternoon. Highly recommended for any researcher.”
Supported by those who believe in the science
ExpiWell is venture-backed and born out of Purdue University — built with partners who share our mission to advance human well-being through better research.
Built to the highest standards
Third-party verified and trusted by IRBs in medical and clinical settings. Your participants’ data is protected at every layer.
HIPAA Compliant
Third-party verified for Protected Health Information, with signed Business Associate Agreements (BAA), AES-256 encryption, and tamper-proof audit trails.
GDPR Ready
Full EU data-residency control and consent management, so studies with European participants stay compliant by design — not as an afterthought.
SOC 2
Security, availability, and confidentiality controls aligned to SOC 2 principles — independently assessed infrastructure your IRB and IT teams can trust.
ExpiWell’s platform and apps are third-party verified HIPAA and GDPR compliant and trusted by IRBs in medical and clinical settings. We’ll even help walk you through the IRB process.
Start free — scale when your study does
Affordable, flexible plans with unlimited participants and notifications. Compliance is never an upsell — every subscription ships with our full security posture.
Free Basic
For event-contingent ESM and EMA studies — free, with no participant caps.
- Unlimited participants, responses, projects, and mobile surveys
- Free native iOS & Android apps in 7 languages
- 12 question types with CSV, TSV, or XML export
Plus
Scheduled surveys for the Experience Sampling Method (ESM).
- Unlimited notifications & reminders
- Adaptive time-zone scheduling
- Video, audio & image collection (15 GB)
Premium
ESM and EMA studies with advanced scheduling & survey options.
- Event triggering & project screeners
- GPS location capture · dyadic & group data
- AI transcription & cognitive testing modules
Sensor+
Wearable and smartphone-sensor data collection.
- Fitbit & Apple Watch / HealthKit integration
- BACTrack alcohol monitoring
- Continuous GPS location tracking
Clinician License
For clinical teams using ExpiWell in practice — details coming soon.
Graduate-student pricing, 3- and 6-month subscriptions, and academic department bundles are also available.
Before you start
Quick answers to what researchers ask most — method, compliance, devices, and cost.
Ecological Momentary Assessment (EMA) — also called the Experience Sampling Method (ESM) — collects real-time data on thoughts, emotions, and behaviors in people’s natural daily contexts. Because participants report in the moment rather than from memory, it eliminates the recall bias that distorts retrospective surveys.
Yes. The ExpiWell platform and apps are third-party verified HIPAA and GDPR compliant, and are trusted by IRBs in medical and clinical settings. We help walk you through the IRB process and provide the verbiage you need.
No. ExpiWell is no-code. You can design, schedule, and launch basic or advanced EMA projects — including event-triggered surveys and JITAIs — without any programming.
Free native iOS and Android apps, plus GPS, Fitbit (activity and sleep), Apple Watch (steps and more), and BACTrack (alcohol behaviors).
The Basic plan is free — with unlimited participants, responses, and projects. Paid plans (Plus, Premium, and Sensor+) add scheduling, media, and sensor capabilities, each with a 7-day free trial, and graduate-student, short-term, and academic-department options are available. See the Subscriptions page for details.
Insights on experience research
Methods, guides, and the researchers pushing the field forward — straight from the ExpiWell team.
Elevate your research
Join over 10,000 researchers around the world and start collecting high-fidelity data today.