diff --git a/app/src/assets/template/app/index.tpl b/app/src/assets/template/app/index.tpl
index aac258cd1..dcd8a2a74 100644
--- a/app/src/assets/template/app/index.tpl
+++ b/app/src/assets/template/app/index.tpl
@@ -32,5 +32,15 @@
     }
   }, 2000)
 </script>
+
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-L7WEXVQCR9"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-L7WEXVQCR9');
+</script>
 </body>
 </html>
diff --git a/app/src/assets/template/desktop/index.tpl b/app/src/assets/template/desktop/index.tpl
index f0e940dc8..1e837293d 100644
--- a/app/src/assets/template/desktop/index.tpl
+++ b/app/src/assets/template/desktop/index.tpl
@@ -26,5 +26,15 @@
 <div id="status" class="fn__flex status"></div>
 <div id="commonMenu" class="b3-menu fn__none"></div>
 <div id="message" class="b3-snackbars"></div>
+
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-L7WEXVQCR9"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-L7WEXVQCR9');
+</script>
 </body>
 </html>
diff --git a/app/src/assets/template/mobile/index.tpl b/app/src/assets/template/mobile/index.tpl
index 3ebad2d7a..23f7bcbc3 100644
--- a/app/src/assets/template/mobile/index.tpl
+++ b/app/src/assets/template/mobile/index.tpl
@@ -72,5 +72,15 @@
     <button data-type="redo"><svg><use xlink:href="#iconRedo"></use></svg></button>
     <span class="fn__flex-1"></span>
 </div>
+
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-L7WEXVQCR9"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-L7WEXVQCR9');
+</script>
 </body>
 </html>