DFengage Release 2.4
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Nov 20 2025
For software support, please contact the DFdiscover team:
via email, help@dfnetresearch.com.
via our website at dfnetresearch.com.
DFengage is an application that allows research participants to complete electronic patient-reported outcomes (ePRO) and other study activities (such as questionnaires, surveys, and diaries) assigned to them by the research team. DFengage is fully integrated with DFdiscover, using the setup definition defined in DFsetup, the role permissions and user accounts defined in DFadmin, and the contact details defined in DFweb. Data completed by participants is available in DFdiscover EDC tools including DFweb, DFcollect, and DFexplore.
DFengage is accessed through a web browser or installed as a mobile app from the Google Play Store (for Android™) or Apple App Store (for iOS® and iPadOS®) on smartphones and tablets. Study participants login to DFengage with their unique user credentials and complete assigned activities based on the study schedule. DFengage users receive reminders when new activities are available or overdue, as push notifications for mobile app users or as emails for web app users.
The updates to DFengage in this release include the following:
DFengage Web App: DFengage is now available as a web app as well as a mobile app which is available directly from DFnet or may be self-hosted by licensed organizations. The benefits DFengage web include:
Login Improvements: We’ve simplified the login flow for study participants to help them access DFengage more easily than ever. Using a study-specific or participant-specific link, the login process for both web and mobile keeps manual entry to a minimum and simplifies the onboarding steps.
Forgot Password & 2FA: Both self-service password resets and two-factor authentication are now available in DFengage for users with an email address registered to their account.
Pending Activities Reminder: If any completed activities are not yet received by the DFdiscover server, a red dot appears on the History icon to flag to the participant that their data still needs to be synced, helping prevent accidental data loss.
Repeating Activities Options: DFengage now supports repeating activities, allowing forms to be collected multiple times in one day or within a time period, using a common scheduled date and time.
These changes and more are described in New Features and Enhancements. The complete listing of all changes by type of change, including bug fixes, is available under All Updates. The release notes also provide information about any Known Issues in the current release as well as any Advance Notices for planned changes in upcoming releases.
DFengage mobile version 2.4 requires a mobile device (tablet or smartphone) running Android™ 8.0 or newer or iOS®/iPadOS® 14.4 or newer.
DFengage web version 2.4 requires an internet browser with HTML5 capabilities. Check your browser’s capabilities at https://html5test.com.
Tested browsers include the current versions of Chrome, Firefox, and Edge on Windows 10 and 11, and Chrome, Firefox, and Safari on macOS 10.14 (Mojave) or later. Browser updates are frequently made available by vendors. DFengage web is not compatible with any version of Internet Explorer or any browser in Windows XP or Windows 7.
DFengage version 2.4 is compatible with DFdiscover server and API version 5.4 and later. Some features of DFengage are only available with later versions of DFdiscover, noted in the release notes and user guides.
DFengage access links are provided to simplify the onboarding process for study participants, whether they are using DFengage web or DFengage mobile. Study participants receive these links in their invitation email, reminder emails, or as a link or QR code provided by site staff via DFweb’s ePRO Management page. Below are details about accessing DFengage without these user-specific access links. Learn more about Access Links for DFengage.
The DFengage mobile app is available for installation from the Google Play Store on Android™ devices and from the Apple App Store on iPadOS® and iOS®.
To assist with opening DFengage in the app store and pre-filling the server and API, customize the following example link to include your own DFdiscover and API: https://dfengage.dfdiscover.com/open?server=explore.dfdiscover.com&api=dfws.dfdiscover.com, where the server = explore.dfdiscover.com and API = dfws.dfdiscover.com.
For existing users, upgrading to DFengage 2.4 depends on the auto-update setting on their device. If auto-update is enabled, DFengage will update automatically as new versions are released. If auto-update is disabled, users will need to manually update DFengage to use newer versions.
The DFengage web application is accessible via web browser and does not require any download or installation by end users.
The DFnet instance of DFengage web is available at https://dfengage.dfdiscover.com, but your system administrator will provide a custom link including your DFengage web URL, DFdiscover server, and API, for example: https://dfengage.dfdiscover.com/?server=explore.dfdiscover.com&api=dfws.dfdiscover.com, where the server = explore.dfdiscover.com and API = dfws.dfdiscover.com.
This chapter describes the features and enhancements added to DFengage since the release of Version 2.3.0. See the next chapter, All Updates for a table listing all changes, including bug fixes.
In addition to the mobile app version of DFengage, we now offer a browser-based web version of DFengage for studies or participants who do not wish to install or use an app on their device. The DFnet instance of DFengage web is available at https://dfengage.dfdiscover.com, but organizations may also host their own instance.
Key functionality is the same between web and mobile, with a few differences:
Further details are provided in the DFengage User Guide.
The DFengage login experience has been enhanced to make it easier for participants to access their ePRO accounts and begin entering data. These updates simplify how study participants connect to their DFdiscover server and authenticate, whether they are new users accepting an invitation or returning users logging in.
When participants open DFengage (web or mobile) using an appropriate access link, the DFdiscover server and API information are pre-filled automatically in the background. Only the DFdiscover server name is displayed on the login page, keeping the interface cleaner and less confusing for participants. Users can still change the server and API if needed, such as for testing, by clicking the server name.
DFengage also supports invite and login links that can be shared with participants directly by site staff through the DFweb ePRO Management page, making it easier for participants to access their ePRO accounts and begin reporting data. Learn more about DFengage access links.
Study participants receive these links in their invitation email, reminder emails, or via a link or QR code provided to them by site staff via DFweb’s ePRO Management page.
The existing server-specific quick installation link may still be used to take the user to the DFengage page in the appropriate app store and prompt the user to complete both their username and password in the mobile app, with the DFdiscover server and API fields pre-filled (e.g., https://dfengage.dfdiscover.com/open?server=explore.dfdiscover.com&api=dfws.dfdiscover.com). If a user opens DFengage without an access link, they are prompted to enter the server and API manually.
DFengage users on both web and mobile may now request a password reset from the login page if they need to set a new password. This provides a self-service option for study participants having difficulties logging in or forgetting their password.
Study participants must have been registered with their email address via the DFweb ePRO Management page in order to request a new password. They must provide both their username and email address in order to request a password reset.
Once requested, they’ll receive an email with a link that will take them to the reset password page, where they can enter their new password and confirm it. They will then be logged in to DFengage. They’ll also receive an email confirming that their password was changed.
Two-factor authentication is supported in DFengage when enabled for a user by a study administrator. When enabled, users are prompted to provide a verification code sent via email each time they log in. This allows the system to provide a second level of authentication beyond the username and password required to login to DFengage.
Study participants must have been registered with their email address via the DFweb ePRO Management page in order to use this feature.
Two-factor authentication is enabled per user by a study administrator in DFadmin. Two-factor authentication is only available in DFengage when connecting to DFdiscover server and API version 5.10 or later.
In case of any pending activities in DFengage that have not yet been received by the DFdiscover server, a red dot is shown on the History icon as a reminder to the participant. In DFengage web, a notification message is also displayed on Today page, and the Logout button is replaced with a Sync button. The participant is prompted not to log out until their pending activities have been successfully sent to ensure data is not lost.
DFengage now supports repeating activities, allowing forms to be collected multiple times in one day or within a time period, using a common schedule date and time. These are defined in the visit map with a visit number range with the S (Scheduled) visit type, so that the repeating form can be assigned a schedule date. Each time an activity is completed for a visit number within a range defined using “-”, the next activity will become available, until the highest visit number in the range is completed. Activities for a visit number within a range using “~” will only appear when a plate within that visit is manually created in DFexplore or DFweb.
If collecting a repeating form an indefinite number of times on a specific day (for example, to collect multiple dosage administrations or feedings on each day), consider including a question that verifies whether an additional entry will be completed that day. Use the conditional visit map to exclude any visits in the range that will not be used, so they do not appear as overdue.
If collecting a repeating form to be completed at any time (for example, to capture ad hoc events that could occur within a specific time period), schedule the visit to occur on the earliest possible date the form will be available in DFengage, and specify an overdue value that exceeds the number of days the repeating form will remain available. A new repeat of the activity will appear under “Due Now” each time one is completed until the highest visit number in the range has been completed.
DFengage web is available directly from DFnet at dfengage.dfdiscover.com, however the DFengage web application may also be self-hosted by customers with their own DFdiscover server. Details for system administrators on the installation and maintenance of the DFengage web server is provided in the Software Installation Guide.
This section provides information about low-severity, low-priority issues that exist in the current release, with details about available workarounds. Where possible, known issues are planned to be addressed in a future release.
This section provides information about changes planned in a future release that may impact ongoing projects, in particular any features that will be deprecated. These notices are intended to support planning for future upgrades.
No advance notices for DFengage in this release.
DFdiscover software uses several third-party software components as part of its server side and/or client tools.
The copyright information for each is provided below. If you would like to receive source codes of these third-party components, please send us your request at help@dfnetresearch.com.
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GPL Ghostscript contains an implementation of techniques covered by US Patents 5,055,942 and 5,917,614, and corresponding international patents. These patents are licensed for use with GPL Ghostscript under the following grant:
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5055942 Photographic image reproduction device using digital halftoning to para images allowing adjustable coarseness 5917614 Method and apparatus for error diffusion paraing of images with improved smoothness in highlight and shadow regions
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