diff --git a/apps/activityreminder/ChangeLog b/apps/activityreminder/ChangeLog
index 6681ac41d..ef387d098 100644
--- a/apps/activityreminder/ChangeLog
+++ b/apps/activityreminder/ChangeLog
@@ -1,3 +1,4 @@
 0.01: New App!
 0.02: Fix the settings bug and some tweaking
 0.03: Do not alarm while charging
+0.04: Obey system quiet mode
diff --git a/apps/activityreminder/README.md b/apps/activityreminder/README.md
index 1e643fb54..e8be66f3c 100644
--- a/apps/activityreminder/README.md
+++ b/apps/activityreminder/README.md
@@ -1,13 +1,14 @@
 # Activity reminder
 
 A reminder to take short walks for the ones with a sedentary lifestyle.
-The alert will popup only if you didn't take your short walk yet
+The alert will popup only if you didn't take your short walk yet.
 
 Different settings can be personalized:
 - Enable : Enable/Disable the app
 - Start hour: Hour to start the reminder
 - End hour: Hour to end the reminder
 - Max inactivity: Maximum inactivity time to allow before the alert. From 15 to 60 min
-- Dismiss delay: Delay added before the next alert if the alert is dismissed. From 5 to 15 min
+- Dismiss delay: Delay added before the next alert if the alert is dismissed. From 5 to 60 min
+    Notice: If Dissmiss delay > Max inactivity then it will be equal Max inactivity
 - Min steps: Minimal amount of steps to count as an activity
 
diff --git a/apps/activityreminder/app.js b/apps/activityreminder/app.js
index 310dc10b0..811399ca6 100644
--- a/apps/activityreminder/app.js
+++ b/apps/activityreminder/app.js
@@ -13,8 +13,11 @@ function drawAlert(){
       }
     load();
   });
-  
-  Bangle.buzz(400);
+
+  // Obey system quiet mode:
+  if (!(require('Storage').readJSON('setting.json',1)||{}).quiet) {
+    Bangle.buzz(400);
+  }
   setTimeout(load, 20000);
 }
 
diff --git a/apps/activityreminder/metadata.json b/apps/activityreminder/metadata.json
index 7fd425ceb..89b0fbc0b 100644
--- a/apps/activityreminder/metadata.json
+++ b/apps/activityreminder/metadata.json
@@ -3,7 +3,7 @@
   "name": "Activity Reminder",
   "shortName":"Activity Reminder",
   "description": "A reminder to take short walks for the ones with a sedentary lifestyle",
-  "version":"0.03",
+  "version":"0.04",
   "icon": "app.png",
   "type": "app",
   "tags": "tool,activity",
diff --git a/apps/activityreminder/settings.js b/apps/activityreminder/settings.js
index 9b9a0ecd8..e4f44efc6 100644
--- a/apps/activityreminder/settings.js
+++ b/apps/activityreminder/settings.js
@@ -43,7 +43,7 @@
      },
      'Dismiss delay': {
         value: settings.dismissDelayMin,
-        min: 5, max: 15,
+        min: 5, max: 60,
         onchange: v => {
           settings.dismissDelayMin = v;
           require("activityreminder").writeSettings(settings);