diff --git a/src/metrics.rs b/src/metrics.rs
index 5c2358b..219b30c 100644
--- a/src/metrics.rs
+++ b/src/metrics.rs
@@ -60,21 +60,6 @@ impl Metrics {
             heartbeat_token_count,
         }
     }
-
-    /// Counts direct notification.
-    pub fn inc_direct_notification(&self) {
-        self.direct_notifications_total.inc();
-    }
-
-    /// Counts heartbeat notification.
-    pub fn inc_heartbeat_notification(&self) {
-        self.heartbeat_notifications_total.inc();
-    }
-
-    /// Sets number of tokens registered for heartbeat notifications.
-    pub fn set_heartbeat_token_count(&self, value: usize) {
-        self.heartbeat_token_count.set(value as i64);
-    }
 }
 
 type State = Arc<Metrics>;
diff --git a/src/notifier.rs b/src/notifier.rs
index 9df93ac..f1a175b 100644
--- a/src/notifier.rs
+++ b/src/notifier.rs
@@ -48,7 +48,7 @@ async fn wakeup(
         .collect::<Vec<_>>();
 
     info!("sending notifications to {} devices", tokens.len());
-    metrics.set_heartbeat_token_count(tokens.len());
+    metrics.heartbeat_token_count.set(tokens.len() as i64);
 
     for key_device_token in tokens {
         info!("notify: {}", key_device_token);
@@ -82,7 +82,7 @@ async fn wakeup(
             Ok(res) => match res.code {
                 200 => {
                     info!("delivered notification for {}", device_token);
-                    metrics.inc_heartbeat_notification();
+                    metrics.heartbeat_notifications_total.inc();
                 }
                 _ => {
                     warn!("unexpected status: {:?}", res);
diff --git a/src/server.rs b/src/server.rs
index 2f358dc..3e05910 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -73,7 +73,7 @@ async fn notify_device(mut req: tide::Request<State>) -> tide::Result<tide::Resp
             match res.code {
                 200 => {
                     info!("delivered notification for {}", device_token);
-                    req.state().metrics().inc_direct_notification();
+                    req.state().metrics().direct_notifications_total.inc();
                 }
                 _ => {
                     warn!("unexpected status: {:?}", res);