---
title: Application reference
description: Reference material for applications in Workbench, including considerations and frequently asked questions (FAQs).
---

# Application reference {: #application-reference }

## FAQ {: #faq }

??? faq "How do I see which model an app was built from?"
    In your Use Case, go to the [**Applications**](wb-apps/index#applications-tab) tab. The **Source** column lists the model each app was created from.


??? faq "Is there a way to see how many predictions were made using an app?"
    You can view every prediction made in an app in the All Rows widget or by downloading them as a CSV.


??? faq "Can I re-run an optimization in the Optimizer app after changing the widget's settings?"
    At this time, you cannot re-run an optimization unless you recreate the prediction row.

## Feature considerations {: #feature-considerations }

Consider the following when using applications in Workbench:

- Supports the following experiments:

    - Binary classification
    - Regression

- Does not support the following experiments:

    - Time series
    - Geospatial
    - Images

- See also these additional [considerations](app-builder/index#considerations){ target=_blank } for applications.