> For the complete documentation index, see [llms.txt](https://legacy-docs.aragon.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://legacy-docs.aragon.org/developers/tools/aragonos/smart-contract-references/apps.md).

# APPS

- [AppProxyBase](https://legacy-docs.aragon.org/developers/tools/aragonos/smart-contract-references/apps/appproxybase.md)
- [AppProxyPinned](https://legacy-docs.aragon.org/developers/tools/aragonos/smart-contract-references/apps/appproxypinned.md)
- [AppProxyUpgradeable](https://legacy-docs.aragon.org/developers/tools/aragonos/smart-contract-references/apps/appproxyupgradeable.md)
- [AppStorage](https://legacy-docs.aragon.org/developers/tools/aragonos/smart-contract-references/apps/appstorage.md)
- [AragonApp](https://legacy-docs.aragon.org/developers/tools/aragonos/smart-contract-references/apps/aragonapp.md)
- [UnsafeAragonApp](https://legacy-docs.aragon.org/developers/tools/aragonos/smart-contract-references/apps/unsafearagonapp.md)