> For the complete documentation index, see [llms.txt](https://guide.scamshield.gov.sg/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.scamshield.gov.sg/resources/help-center/about-scamshield/do-i-need-a-wifi-or-data-plan-for-the-app-to-work.md).

# Do I need a WiFi or data plan for the app to work?

You don’t need WiFi or a data plan for the app to detect scam messages. The app runs in the background to detect incoming scam text messages.

However, without WiFi or a data plan, the app will not be able to block scam calls, and will not be able to check scams or report scams to ScamShield.