GET /api/v2/devices/992557995/apps 

RESPONSE:

{
  "data": {
    "type": "devices",
    "id": "992557995",
    "attributes": {
      "id": "992557995",
      "description": "",
      "product": "MTCDT-H5-210L",
      "vendor": "Multi-Tech Systems Inc.",
      "apps": [
        {
          "name": "app_37278085",
          "id": "60d0a5eb31eddd285865a784",
          "version": "0.2.6",
          "status": "Active",
          "type": "custom",
          "info": "What the app reported."
        }
      ]
    }
  }
}