Introducing the Fitabase Engage mobile app

Preview · Summer 2026

Surveys, EMAs, and just‑in‑time interventions

A mobile-first, de-identified survey experience from Fitabase. Run dynamic survey studies, ecological momentary assessments, and just-in-time interventions remotely.

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Participant holding a phone displaying a Fitabase Engage activity-intensity survey outdoors

Fitabase Engage mobile app showing a 'Great job getting active! You're halfway to your active minutes goal for the week.' message with a Confirm button

Bring your own phone

Participants respond right from their own devices

The Fitabase Engage app lives on a participant's personal mobile phone. No special device required.

No email address or phone number is involved in downloading the app or receiving surveys, making for a totally de-identified experience.

Build. Send. Engage.

How surveys come together

Build surveys in your Fitabase dashboard and deliver them straight to participant phones, all from a guided six-step workflow.

Create

Start from a prompt template

Prompt type templates support multiple question types: boolean, Likert, multi-select, free text, and more.

Build

Build surveys from prompts

Use prompts as building blocks to assemble a survey that fits your protocol.

Assign

Assign to participants or groups

Send surveys to specific participants, study arms, or everyone at once.

Schedule

Time it right

Set go-live times based on the clock or participant activity, the foundation for EMAs and just-in-time adaptive interventions.

Deliver

Push it live

Use our template or write your own push notification text. Participants see the alert on their lock screen when a survey is ready.

Engage

Watch responses roll in

View participant responses in near real-time and monitor for issues as they come up.

Fitabase Engage mobile app showing an 'About my study' screen with FAQ-style help topics for a FIT Study

Not just for surveys

Your participants' hub for the whole study experience

Check Fitbit or Garmin sync status at a glance
Get nudged to sync when a device falls behind
Access device troubleshooting tips
Learn more about the study they've joined

Visual Flow Designer

Design conditional logic without writing code

Build surveys as a visual graph. Chain prompts together, branch on responses, and react to what a participant just did, all from a drag-and-connect canvas.

Advanced triggers tied to wearable activity data like active minutes, step goals, heart-rate zones, and workout completion
Conditional branching on any prior response or participant variable
Custom rules that combine activity, time-of-day, and study-defined data
Map each response to a named variable that flows directly into your Fitabase dataset, with no post-processing required

AI Assistant

Build complex logic with plain conversation

Describe what you want in plain English and the built-in AI Assistant wires it up for you. Add new questions, chain branches, tweak copy, or rework an entire flow, without touching the canvas.

Add, edit, or connect prompts by describing the change you want
Bring your ideas to life. Describe the study you have in mind and watch the flow take shape as you talk
Import an existing study design in whatever format you have it (a doc, a spreadsheet, a flowchart, a whiteboard photo) and the AI Assistant draws it onto the canvas instantly

Fitabase Engage AI Assistant pane showing a conversation about adding a new Boolean prompt to a survey flow

Tailor surveys to your study

From EMAs to just-in-time interventions

Ecological momentary assessments

Use activity-based triggers to craft and manage EMAs that capture how participants are feeling in the moment.

Just-in-time adaptive interventions

Run JITAIs with personalized messages and surveys delivered based on participant activity patterns.

Smartphone lock screen showing an Engage push notification

Push Notifications

Timely nudges that drive compliance

Trigger push notifications based on participant activity, time of day, or study milestones. Help participants stay on track without adding burden, and meet participants where they are.

Fitabase Engage mobile app showing a 'Connect your Garmin' onboarding screen with a wrist-and-watch illustration

Garmin SDK Integration

Direct-to-device sync, no servers in the middle

Some protocols need finer-grained data than Garmin's cloud exposes. Others can't route participant data through Garmin's servers at all.

For these studies, the Engage mobile app ships with direct-to-device syncing built on the Garmin SDK. Participants pair their watch once over Bluetooth, and data flows straight from the wrist into your Fitabase dataset.

Easy for participants

Getting started takes minutes

Participants download the Fitabase Engage app from the Apple App Store or Google Play and enter the access code provided by your study team. No additional personal details required.

Compatible with iPhone (iOS 15+) and Android 9 or higher.

Fitabase Engage mobile app showing a 'Study Joined' welcome screen thanking the participant for joining the F.I.T. research study

Interested in Fitabase Engage?

Request a demo