Title: Apps
Description: Standalone apps and interactive tools available on GhostESP
URL: /v2.1/apps/
Version: v2.1
Section: GhostESP: Revival
Keywords: apps, rave mode, visualizer, tools, sd apps, plugins
Search index: /search-index.json

# Apps

> Standalone apps and interactive tools available on GhostESP

---

GhostESP includes built-in apps, compiled GhostScript packages, and target-specific Native SD Apps that run from the on-device menu.
Current Native SD App support: The Apps gallery exposes third-party native apps only on boards with PSRAM. Boards without PSRAM can still use built-in apps and GhostScript. Treat native app execution on no-PSRAM boards as unsupported even when an individual manifest sets requires_psram to false.
To build an extension, first [compare GhostScript and Native SD Apps](/v2.1/development/). Continue with [GhostScript](/v2.1/ghostscript/), [Native SD Apps](/v2.1/development/native-sd-apps/), or the [GBT reference](/v2.1/development/gbt/).