# Installing Think2Switch™ The Think2Switch™ app is available for free on the Apple App Store. Follow this link to install it on your device: Alternatively, go to the app store and search for "Think2Switch". #### **Free vs Subscription** With the free version of the Think2Switch™ app, you can experience what it's like to control a [screen output](/think2switch-knowledge-guide/setup-guide/control/output-options/screen-output.md) with a [brain computer interface](https://www.possneuro.com/research.html). You can unlock additional features by purchasing a subscription. On the home screen, tap "Need Help?" and then select "Subscribe to unlock features" for more information. #### **Updates** The App Store app will automatically update Think2Switch™ when a new version is available. If automatic updates are not enabled, you will receive a notification instead. #### **Need help?** If you are having trouble finding the app, or something doesn’t look right, contact us and we’ll help you. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://think2switch.gitbook.io/think2switch-knowledge-guide/before-you-get-started/installing-think2switch-tm.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.