diff --git a/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/Utils.java b/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/Utils.java
index 5979fd5..ea434f5 100644
--- a/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/Utils.java
+++ b/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/Utils.java
@@ -1,9 +1,11 @@
 package org.eu.exodus_privacy.exodusprivacy;
 
 import android.annotation.SuppressLint;
+import android.content.Context;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.Signature;
+import android.os.Build;
 
 import java.io.ByteArrayInputStream;
 import java.io.InputStream;
@@ -12,13 +14,21 @@ import java.security.NoSuchAlgorithmException;
 import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
 import java.security.cert.X509Certificate;
+import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Date;
+import java.util.Locale;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 public class Utils {
 
+    @SuppressWarnings("unused")
     public static final String TAG = "Exodus_privacy";
+
+    public static final String APP_PREFS = "app_prefs";
+    public static final String LAST_REFRESH = "last_refresh";
+
     @SuppressLint("PackageManagerGetSignatures")
     public static String getCertificateSHA1Fingerprint(PackageManager pm, String packageName) {
         int flags = PackageManager.GET_SIGNATURES;
@@ -84,6 +94,47 @@ public class Utils {
         return str.toString();
     }
 
+
+    /**
+     * Convert a date in String -> format yyyy-MM-dd HH:mm:ss
+     *
+     * @param date Date
+     * @return String
+     */
+    public static String dateToString(Date date) {
+        if (date == null)
+            return null;
+        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
+        return dateFormat.format(date);
+    }
+
+
+    /**
+     * Convert String date from db to Date Object
+     *
+     * @param stringDate date to convert
+     * @return Date
+     */
+    public static Date stringToDate(Context context, String stringDate) {
+        if (stringDate == null)
+            return null;
+        Locale userLocale;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            userLocale = context.getResources().getConfiguration().getLocales().get(0);
+        } else {
+            userLocale = context.getResources().getConfiguration().locale;
+        }
+        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", userLocale);
+        Date date = null;
+        try {
+            date = dateFormat.parse(stringDate);
+        } catch (java.text.ParseException ignored) {
+
+        }
+        return date;
+    }
+
+
     /*
     Simple and not complete markdownToHtml converter
      */
diff --git a/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/fragments/HomeFragment.java b/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/fragments/HomeFragment.java
index 24396a9..83154ad 100644
--- a/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/fragments/HomeFragment.java
+++ b/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/fragments/HomeFragment.java
@@ -1,7 +1,9 @@
 package org.eu.exodus_privacy.exodusprivacy.fragments;
 
 import android.app.Activity;
+import android.app.AlertDialog;
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
@@ -17,6 +19,7 @@ import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 
 import org.eu.exodus_privacy.exodusprivacy.R;
+import org.eu.exodus_privacy.exodusprivacy.Utils;
 import org.eu.exodus_privacy.exodusprivacy.adapters.ApplicationListAdapter;
 import org.eu.exodus_privacy.exodusprivacy.adapters.ApplicationViewModel;
 import org.eu.exodus_privacy.exodusprivacy.databinding.HomeBinding;
@@ -26,8 +29,12 @@ import org.eu.exodus_privacy.exodusprivacy.manager.NetworkManager;
 
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.Date;
 import java.util.List;
 
+import static android.content.Context.MODE_PRIVATE;
+
 public class HomeFragment extends Fragment implements ComputeAppListTask.Listener, Updatable {
 
     private @Nullable
@@ -45,6 +52,8 @@ public class HomeFragment extends Fragment implements ComputeAppListTask.Listene
     private int lastProgress = 0;
     private int lastMaxProgress = 0;
     private int scrollTo = 0;
+    private String last_refresh;
+
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         if (applications == null)
@@ -59,18 +68,24 @@ public class HomeFragment extends Fragment implements ComputeAppListTask.Listene
         Context context = homeBinding.getRoot().getContext();
         packageManager = context.getPackageManager();
         homeBinding.swipeRefresh.setOnRefreshListener(this::startRefresh);
+
+        SharedPreferences sharedPreferences = getContext().getSharedPreferences(Utils.APP_PREFS, MODE_PRIVATE);
+        last_refresh = sharedPreferences.getString(Utils.LAST_REFRESH, null);
+
         if (packageManager != null) {
             homeBinding.noPackageManager.setVisibility(View.GONE);
+
             onAppsComputed(applications);
             if (applications.isEmpty())
                 displayAppListAsync();
-            if (startRefreshAsked)
+            if (startRefreshAsked && last_refresh == null)
                 startRefresh();
             else if (refreshInProgress) {
                 homeBinding.layoutProgress.setVisibility(View.VISIBLE);
                 homeBinding.swipeRefresh.setRefreshing(true);
                 updateProgress(lastResource, lastProgress, lastMaxProgress);
             }
+
         } else {
             homeBinding.noPackageManager.setVisibility(View.VISIBLE);
         }
@@ -188,7 +203,25 @@ public class HomeFragment extends Fragment implements ComputeAppListTask.Listene
         appListFragment.setApplications(apps);
         if (!apps.isEmpty()) {
             if (startupRefresh) {
-                startRefresh();
+                Calendar cal = Calendar.getInstance();
+                cal.setTime(Utils.stringToDate(getContext(), last_refresh));
+                cal.add(Calendar.DAY_OF_YEAR, 1);
+                Date refreshAfter = cal.getTime();
+                Date currentDate = new Date();
+                if (last_refresh != null && !refreshInProgress && currentDate.after(refreshAfter)) {
+                    AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getContext());
+                    dialogBuilder.setMessage(getString(R.string.refresh_needed_message, last_refresh));
+                    dialogBuilder.setPositiveButton(R.string.refresh, (dialog, id) -> {
+                        startRefresh();
+                        dialog.dismiss();
+                    });
+                    dialogBuilder.setNegativeButton(R.string.cancel, (dialog, id) -> dialog.dismiss());
+                    AlertDialog alertDialog = dialogBuilder.create();
+                    alertDialog.show();
+
+                } else if (last_refresh == null) {
+                    startRefresh();
+                }
                 startupRefresh = false;
             }
         }
diff --git a/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/manager/NetworkManager.java b/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/manager/NetworkManager.java
index cb762a8..7c8a151 100644
--- a/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/manager/NetworkManager.java
+++ b/app/src/main/java/org/eu/exodus_privacy/exodusprivacy/manager/NetworkManager.java
@@ -19,11 +19,13 @@
 package org.eu.exodus_privacy.exodusprivacy.manager;
 
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.os.Bundle;
 
 import org.eu.exodus_privacy.exodusprivacy.R;
+import org.eu.exodus_privacy.exodusprivacy.Utils;
 import org.eu.exodus_privacy.exodusprivacy.listener.NetworkListener;
 import org.eu.exodus_privacy.exodusprivacy.objects.Application;
 import org.eu.exodus_privacy.exodusprivacy.objects.Report;
@@ -54,6 +56,8 @@ import java.util.Random;
 import java.util.TimeZone;
 import java.util.concurrent.Semaphore;
 
+import static android.content.Context.MODE_PRIVATE;
+
 /*
     Singleton that handle all network connection
 */
@@ -113,15 +117,20 @@ public class NetworkManager {
         @Override
         public void run() {
             isRunning = true;
+            Message mes = null;
             while (isRunning) {
                 try {
                     sem.acquire();
-                    Message mes = messageQueue.remove(0);
+                    mes = messageQueue.remove(0);
                     //noinspection SwitchStatementWithTooFewBranches
                     switch (mes.type) {
                         case GET_REPORTS:
                             getTrackers(mes);
                             getApplications(mes);
+                            SharedPreferences sharedPreferences = mes.context.getSharedPreferences(Utils.APP_PREFS, MODE_PRIVATE);
+                            SharedPreferences.Editor editor = sharedPreferences.edit();
+                            editor.putString(Utils.LAST_REFRESH, Utils.dateToString(new Date()));
+                            editor.apply();
                             break;
                         default:
                             break;
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7db2975..04227ad 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -45,7 +45,10 @@
     <string name="tracker_presence_in">Present in:</string>
     <string name="no_app_found_tracker">This tracker seems not be present in your applications</string>
     <string name="source">Source: %s</string>
-
+    <string name="refresh">Refresh</string>
+    <string name="cancel">Cancel</string>
+    <string name="refresh_needed">Refresh needed</string>
+    <string name="refresh_needed_message">Data have not been update since %1$s.\n\nWould you like to refresh them?</string>
     <!-- Menu -->
     <string name="menu_action_filter">Filter</string>
     <string name="menu_action_settings">Application Settings</string>