Title: Apps
Description: Standalone apps and interactive tools available on GhostESP
URL: /latest/apps/
Version: latest
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](/latest/development/). Continue with [GhostScript](/latest/ghostscript/), [Native SD Apps](/latest/development/native-sd-apps/), or the [GBT reference](/latest/development/gbt/).
For the CrowPanel 4.2-inch and 5.79-inch e-paper displays, see the [E-paper Reader](/latest/apps/reader/) for reading comics and books from the SD card.