Mobile apps provide archaeologists a way to engage the public and local communities in efforts to protect heritage at risk. This article discusses community engagement apps used by archaeologists who specialize in collecting data about climate change and its impact on cultural sites. It provides an overview of the process by which the Florida Public Archaeology Network (FPAN) developed various workflows over the last few years to engage community member–scientists using digital tools. FPAN based this work on examples from cultural heritage management practice in Scotland. Because we were unable to directly adapt Scotland's app to our US context, we experimented with multiple other apps and tools to implement our workflows, including Arches, Solocator, ArcGIS Field Maps, and the Arrow GNSS receiver.