diff --git a/apps/bootgatthrm/ChangeLog b/apps/bootgatthrm/ChangeLog
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+++ b/apps/bootgatthrm/ChangeLog
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+0.01: Initial release.
diff --git a/apps/bootgatthrm/README.md b/apps/bootgatthrm/README.md
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+# BLE GATT HRM Service
+
+Adds the GATT HRM Service to advertise the current HRM over Bluetooth.
+
+## Usage
+
+This boot code runs in the background and has no user interface.
+
+## Creator
+
+[Another Stranger](https://github.com/anotherstranger)
+
+## Aknowledgements
+
+Special thanks to [Jonathan Jefferies](https://github.com/jjok) for creating the
+bootgattbat app, which was the inspiration for this App!
diff --git a/apps/bootgatthrm/bluetooth.png b/apps/bootgatthrm/bluetooth.png
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index 000000000..1a884a62c
Binary files /dev/null and b/apps/bootgatthrm/bluetooth.png differ
diff --git a/apps/bootgatthrm/boot.js b/apps/bootgatthrm/boot.js
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+++ b/apps/bootgatthrm/boot.js
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+(() => {
+  function setupHRMAdvertising() {
+    /*
+     * This function prepares BLE heart rate Advertisement.
+     */
+
+    NRF.setServices({
+      0x180D: { // heart_rate
+        0x2A37: { // heart_rate_measurement
+          notify: true,
+          value: [0x06, 0],
+        }
+      }
+    }, { advertise: [0x180d] });
+
+  }
+  function updateBLEHeartRate(hrm) {
+    /*
+     * Send updated heart rate measurement via BLE
+     */
+    if (hrm === undefined || hrm.confidence < 50) return;
+    try {
+      NRF.updateServices({
+        0x180D: {
+          0x2A37: {
+            value: [
+              0x06, //
+              hrm.bpm
+            ],
+            notify: true
+          }
+        }
+      });
+    } catch (error) {
+      if (error.message.includes("BLE restart")) {
+        /*
+         * BLE has to restart after service setup.  
+         */
+        NRF.disconnect();
+      }
+      else if (error.message.includes("UUID 0x2a37")) {
+        /*
+         * Setup service if it wasn't setup correctly for some reason 
+         */
+        setupHRMAdvertising();
+      } else {
+        console.log("[bootgatthrm]: Unexpected error occured while updating HRM over BLE! Error: " + error.message);
+      }
+    }
+  }
+
+  setupHRMAdvertising();
+  Bangle.on("HRM", function (hrm) { updateBLEHeartRate(hrm); });
+})();
diff --git a/apps/bootgatthrm/metadata.json b/apps/bootgatthrm/metadata.json
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+++ b/apps/bootgatthrm/metadata.json
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+{
+  "id": "bootgatthrm",
+  "name": "BLE GATT HRM Service",
+  "shortName": "BLE HRM Service",
+  "version": "0.01",
+  "description": "Adds the GATT HRM Service to advertise the measured HRM over Bluetooth.\n",
+  "icon": "bluetooth.png",
+  "type": "bootloader",
+  "tags": "hrm,health,ble,bluetooth,gatt",
+  "supports": ["BANGLEJS","BANGLEJS2"],
+  "readme": "README.md",
+  "storage": [
+    {"name":"gatthrm.boot.js","url":"boot.js"}
+  ]
+}