> For the complete documentation index, see [llms.txt](https://contracts.synapseprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://contracts.synapseprotocol.com/messaging/apps.md).

# apps

- [BatchMessageSender](https://contracts.synapseprotocol.com/messaging/apps/batchmessagesender.md)
- [PingPong](https://contracts.synapseprotocol.com/messaging/apps/pingpong.md)