> ## Documentation Index > Fetch the complete documentation index at: https://firespark.cloud/docs/llms.txt > Use this file to discover all available pages before exploring further. # App > Your branded mobile app powered by the Storefront API. A **mobile app** is where loyalty, reorder, and push notifications live — on your terms, not a marketplace’s. Fire spark supplies menus, stores, checkout, and orders; you supply brand and UX. ## How we help | Piece | Fire spark role | | -------------- | ------------------------------------------------------------------------------------- | | Menus & stores | Synced from your POS; composed per channel if you need a app-specific offer | | Customer auth | OIDC you already use; [Storefront API](/docs/storefront-api/introduction) exchanges tokens | | Orders | Same injection path to your POS as aggregators | You are not building an omnichannel backend from zero. You are **designing the experience** your customers keep on their home screen. Build app, web, and kiosk flows