BYOD ePROUpdated September 27, 2026

No app store between a reminder and a completed diary

BYOD means participants use the phone they already own. A reminder links straight to the questionnaire in their browser, no app to find, download or log into separately.

  • Works in any mobile browser
  • Magic-link access, no password
  • Same-day setup, no app build

Free sandbox · No credit card · 21 CFR Part 11 aligned

Clinic tablet · landscape5 of 12

How much pain do you feel right now?

No painWorst pain
BackNext

0

apps for participants to install

0

separate passwords to create

10

question types, plus table sections

1

tap from reminder to questionnaire

Why the app store step matters

Every extra step loses participants

An app-based ePRO adds friction between a reminder and a completed entry: find the app store, download, create an account, log in. Older participants and anyone with a full or slow phone lose more entries at that step than at any other.

  • No app store search, download or install
  • No separate account or password for the diary app
  • No app update that can break the diary mid-study

From: Capture.Study · Sleep and Recovery Study

Your questionnaire is ready

Hi Anna, your evening diary is open until midnight. Tap the button to start. The link signs you in, no password needed.

Open my tasks

Questions? Reply to reach your study site.

My tasks

Evening diary

Due tonight

Week 4 questionnaire

Opens Monday

+ Report an episode

How it works

A link, not an app

Participants get a reminder by email or SMS with a secure link. It opens the questionnaire directly in their phone's browser, already tied to their record, with no login screen in the way.

  • Secure magic-link access, no separate password
  • Same question types as any Capture form: scales, sliders, single and multiple choice, dates
  • Responses save immediately and appear in the study dashboard

Evening diary

Question 3 of 8

How would you rate your fatigue today?

0 = no fatigue, 10 = worst imaginable

012345678910
Add a photo (optional)
BackNext
● Answers saved as they go

Compliance

A reminder ladder that actually reaches people

Diaries fail on missed reminders, not the question format. A configurable reminder ladder keeps prompting a participant through email and SMS until they respond, and you can see completion in real time.

  • Configurable reminder schedule by email and SMS
  • Real-time compliance visibility in the study dashboard
  • No app notification permissions to manage or lose
ePRO for small clinical trials
1

When due

18:00

Your evening diary is open

2

Next day

18:00

Reminder: your diary is still open

3

Final notice

21:30

Last chance before the window closes

Quiet hours

22:00 to 08:00 in the participant's time zone

Stops

As soon as the task is completed

Send yourself a test diary link right now

See exactly what a participant sees, on your own phone, in the free sandbox.

Try a diary on your own phone

Before you switch

What teams check before moving off an app-based ePRO

Cost

No separate app development or app-store fees. BYOD ePRO is part of the same platform as EDC and eConsent.

Compliance

The same audit trail, edit checks and role-based access apply to ePRO responses as to any other form in the study.

Setup time

A diary schedule can be built and tested the same day, with no app-store review process to wait on.

Migration

Moving from an app-based ePRO does not require re-training participants; a link is simpler than the app it replaces.

Support

Participant-facing support documentation and email support are included on every plan.

FAQ

Questions teams ask before they switch

Something not covered here? Ask us directly.

Do participants need to download an app?

No. They open a secure link on their own phone or computer and answer directly in the browser, with nothing to install.

Does BYOD ePRO work on any phone or computer?

It works in any modern mobile or desktop browser, so it runs on the device a participant already owns and knows how to use.

How do participants log in without an app account?

Through a secure magic link sent by email or SMS. There is no separate app password to create or forget.

What happens if a participant misses a reminder?

A configurable reminder ladder sends follow-ups by email and SMS, and you can see completion status in real time in the study dashboard.

Is a link-based diary as secure as an app?

Each link is tied to the participant's record and access is logged the same way as any other action in the audit trail.

Can I still build a structured, scored questionnaire without an app?

Yes. All 10 question types and table sections for repeating entries are available, the same as any Capture form.

Send a real diary link to your own phone

Free sandbox with every feature. No credit card, no app to build.

Try a diary on your own phone