--- title: Complete a Task description: How do participants complete a task in the Labfront app, including timed tasks and questionnaires? We'll show you in this article. --- [Skip to content](https://help.labfront.com/complete-a-task#main-content) [Contact Support](https://help.labfront.com/kb-tickets/new?hsLang=en) [![LabFront\_logo\_landscape-2](https://help.labfront.com/hs-fs/hubfs/Logos/LabFront_logo_landscape-2.png?width=150&height=38&name=LabFront_logo_landscape-2.png)](https://www.labfront.com) - [Sign In](https://app.labfront.com/) - [Back to Website](https://www.labfront.com/) Open main navigation Close main navigation - [Sign In](https://app.labfront.com/) - [Back to Website](https://www.labfront.com/) - [Contact Support](https://help.labfront.com/kb-tickets/new) How can we help you? - There are no suggestions because the search field is empty. 1. [Help Center](https://help.labfront.com/?hsLang=en) 2. [Using Labfront](https://help.labfront.com/using-labfront?hsLang=en) 3. [Participant App](https://help.labfront.com/using-labfront?hsLang=en#participant-app) # Complete a Task ## How do participants complete a task in the Labfront app? We'll show you in this article. #### - 📱 For Participants -    Throughout the project, participants will complete tasks and questionnaires on the Labfront Companion app. Task completion can be monitored by researchers via the [Adherence Dashboard](https://help.labfront.com/track-adherence?hsLang=en).    We'll cover how to: - [View tasks on the Labfront Companion App](https://help.labfront.com/complete-a-task#overview) - [Complete Timer Tasks](https://help.labfront.com/complete-a-task#timer) - [Complete Questionnaires](https://help.labfront.com/complete-a-task#questionnaire) - [Complete Device Tasks](https://help.labfront.com/complete-a-task#movesense) ### Tasks Overview To see what tasks to complete, open the [Labfront Companion app](https://www.labfront.com/download-app). Tasks can be found on the home screen (Tasks screen). By default, it will be the first thing you see when you open the app.  The name of each task and its schedule (how often it should be completed) will be displayed. Click on the task to view the instructions.  #### Task Tracking A timestamp will be displayed on the task, indicating the last successful completion. If the task was completed on the current day, the timestamp will be highlighted in green, along with the number of times the task was completed today. Once it is past midnight, the green highlight will change to grey, indicating that the task has not yet been completed on the current day. ### ![task tracking (1)](https://help.labfront.com/hs-fs/hubfs/Help%20Center/Participant%20App/task%20tracking%20(1).png?width=461&height=434&name=task%20tracking%20(1).png)   ### Completing Timer Tasks Press **Start Timer** The timer will continue to run in the background, so your app doesn't need to be kept in the foreground while you complete the task.  Click **End Timer & Mark as Complete** when you have finished the timed task.   ![Group 2570](https://help.labfront.com/hs-fs/hubfs/Help%20Center/Participant%20App/Group%202570.png?width=461&height=432&name=Group%202570.png) ### Completing Questionnaires Click **Start**, read the questionnaire instructions, and click **Continue** when you're ready to begin. Answer each question in the questionnaire and click **OK**. *You will have the option to **Skip** a question that's not required. * You can track your progress with the progress bar at the top of the screen. If you'd like to review and edit your answers, you can navigate the questionnaire by clicking the **![arrow\_forward\_ios\_black\_24dp 1](https://help.labfront.com/hs-fs/hubfs/Icons/arrow_forward_ios_black_24dp%201.png?width=15&height=15&name=arrow_forward_ios_black_24dp%201.png)** or ![arrow\_forward\_ios\_black\_24dp 2](https://help.labfront.com/hs-fs/hubfs/Icons/arrow_forward_ios_black_24dp%202.png?width=15&height=15&name=arrow_forward_ios_black_24dp%202.png) buttons.  Need to start over? Click **Discard** to start over again from scratch. When you've answered each question as accurately as you can, click **Submit** to complete the task. Questionnaire responses *cannot* be edited after submission.    ![Group 2569](https://help.labfront.com/hs-fs/hubfs/Help%20Center/Participant%20App/Group%202569.png?width=688&height=432&name=Group%202569.png) ### Completing Device Tasks (Manual Data Collection) For some tasks, participants will need to manually start and stop data collection on the app.  Make sure your device is connected. Follow [these instructions](https://help.labfront.com/set-up-wearable-device?hsLang=en) if you haven't set up your device yet. When you seethe device is Ready, click **Start Recording**. This begins the task. To complete the task, click **Finish Recording** and **Submit**. You'll see a message that your data has been saved.    ![Movesense Tasks](https://help.labfront.com/hs-fs/hubfs/Help%20Center/Participant%20App/Movesense%20Tasks.png?width=669&height=432&name=Movesense%20Tasks.png) For more details on completing Movesense tasks, we recommend reading our[in-depth article on Movesense Tasks](https://help.labfront.com/complete-movesense-task?hsLang=en). For more details on completing Garmin tasks, we recommend this [article about Garmin Tasks](https://help.labfront.com/complete-garmin-streaming-task?hsLang=en).  ### **Completing All Other Tasks** Read the instructions and click **Mark as Complete** when you've finished the task.You will see a timestamp on the task showing when it was last successfully completed.      **💡 Pro Tip** You can click **Task History** to view and keep track of everything you have completed so far in the study.   --- ### **FAQs** #### **Can I edit a questionnaire that I've already submitted?** Unfortunately not. While you can review your answers and make edits while you're completing the questionnaire, you can't make changes after the questionnaire has been submitted.  #### **Do I need to keep the app open if I'm completing a timed task?** No! The timer will continue to run in the background so don't worry about keeping the app in the foreground.  #### **How will I know if I completed a task?** You will see a timestamp of when the task was last successfully completed on the main Tasks page. You can also click **Task History** to view all of your previously completed tasks.     ### 🔎 Can't find the answer you're looking for? Check out our full list of [Participant App FAQs](https://help.labfront.com/participant-app-faqs?hsLang=en)→ Learn how to [troubleshoot participant app issues](https://help.labfront.com/labfront-troubleshooting?hsLang=en)→ - [Getting Started](https://help.labfront.com/getting-started?hsLang=en#main-content) - [Getting Started FAQs](https://help.labfront.com/getting-started?hsLang=en#getting-started-faqs) - [Getting Started with Labfront Guide for Researchers](https://help.labfront.com/getting-started?hsLang=en#getting-started-with-labfront-guide-for-researchers) - [Using Labfront](https://help.labfront.com/using-labfront?hsLang=en#main-content) - [Project Creation, Setup and Edits](https://help.labfront.com/using-labfront?hsLang=en#project-creation-setup-and-edits) - [Workspace](https://help.labfront.com/using-labfront?hsLang=en#workspace) - [Participant Management](https://help.labfront.com/using-labfront?hsLang=en#participant-management) - [Participant App](https://help.labfront.com/using-labfront?hsLang=en#participant-app) - [Users and Accounts](https://help.labfront.com/using-labfront?hsLang=en#users-and-accounts) - [Participant Experience](https://help.labfront.com/using-labfront?hsLang=en#participant-experience) - [Garmin](https://help.labfront.com/garmin?hsLang=en#main-content) - [General](https://help.labfront.com/garmin?hsLang=en#general) - [Using Device](https://help.labfront.com/garmin?hsLang=en#using-device) - [Movesense](https://help.labfront.com/movesense?hsLang=en#main-content) - [General](https://help.labfront.com/movesense?hsLang=en#general) - [Using Device](https://help.labfront.com/movesense?hsLang=en#using-device) - [Data](https://help.labfront.com/movesense?hsLang=en#data) - [Dexcom](https://help.labfront.com/dexcom?hsLang=en) - [Data Metrics and Analysis](https://help.labfront.com/data-metrics-and-analysis?hsLang=en#main-content) - [Data Management](https://help.labfront.com/data-metrics-and-analysis?hsLang=en#data-management) - [Data Metrics](https://help.labfront.com/data-metrics-and-analysis?hsLang=en#data-metrics) - [Data Analytics](https://help.labfront.com/data-metrics-and-analysis?hsLang=en#data-analytics) - [Analytics Reports](https://help.labfront.com/data-metrics-and-analysis?hsLang=en#analytics-reports) - [Pricing, Plans and Payment](https://help.labfront.com/pricing-plans-and-payment?hsLang=en) - [Legal and Security](https://help.labfront.com/legal-and-security?hsLang=en) - [Participant Resources](https://help.labfront.com/participant-resources?hsLang=en#main-content) - [Participant Guides](https://help.labfront.com/participant-resources?hsLang=en#participant-guides) - [Supporting Resources](https://help.labfront.com/supporting-resources?hsLang=en#main-content) - [Grants, Funding and IRB Applications](https://help.labfront.com/supporting-resources?hsLang=en#grants-funding-and-irb-applications) [![labfront logo](https://help.labfront.com/hs-fs/hubfs/LabFront_logo_landscape-1.png?width=95&height=24&name=LabFront_logo_landscape-1.png "labfront logo")](https://www.labfront.com) Boston, MA, USA [mailto:support@labfront.com](mailto:support@labfront.com) Copyright © 2026, Labfront