diff --git a/app/build.gradle b/app/build.gradle
index f92e800..22f9b39 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "com.espressif.espblufi"
         minSdkVersion 18
         targetSdkVersion 28
-        versionCode 18
-        versionName "1.4.1"
+        versionCode 19
+        versionName "1.4.2"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 76ba13c..b30566d 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,6 +9,7 @@
     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.INTERNET" />
 
     <application
         android:name=".app.BlufiApp"
diff --git a/app/src/main/java/com/espressif/espblufi/task/BlufiAppReleaseTask.java b/app/src/main/java/com/espressif/espblufi/task/BlufiAppReleaseTask.java
new file mode 100644
index 0000000..c7d2ce6
--- /dev/null
+++ b/app/src/main/java/com/espressif/espblufi/task/BlufiAppReleaseTask.java
@@ -0,0 +1,136 @@
+package com.espressif.espblufi.task;
+
+import androidx.annotation.NonNull;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Locale;
+
+/**
+ * Released APKs' name format: EspBluFi-{version name}-{version code}.apk
+ */
+public class BlufiAppReleaseTask {
+    private static final String LATEST_RELEASE_URL = "https://api.github.com/repos/EspressifApp/EspBlufiForAndroid/releases/latest";
+
+    private static final String APK_SUFFIX = ".apk";
+
+    private static final String KEY_ASSETS = "assets";
+    private static final String KEY_ASSET_NAME = "name";
+    private static final String KEY_SIZE = "size";
+    private static final String KEY_DOWNLOAD_URL = "browser_download_url";
+    private static final String KEY_BODY = "body";
+
+    public ReleaseInfo requestLatestRelease() {
+        HttpURLConnection connection = null;
+        try {
+            URL url = new URL(LATEST_RELEASE_URL);
+            connection = (HttpURLConnection) url.openConnection();
+            int code = connection.getResponseCode();
+            String message = connection.getResponseMessage();
+            System.out.println("Code = " + code);
+            if (code != HttpURLConnection.HTTP_OK) {
+                ReleaseInfo info = new ReleaseInfo();
+                info.versionCode = -1;
+                info.versionName = message;
+                return info;
+            }
+
+            InputStream is = connection.getInputStream();
+            ByteArrayOutputStream contentArray = new ByteArrayOutputStream();
+            for (int read = is.read(); read != -1; read = is.read()) {
+                contentArray.write(read);
+            }
+
+            JSONObject releaseJSON = new JSONObject(new String(contentArray.toByteArray()));
+            return parseRelease(releaseJSON);
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (JSONException e) {
+            e.printStackTrace();
+        } finally {
+            if (connection != null) {
+                connection.disconnect();
+            }
+        }
+
+        return null;
+    }
+
+    private ReleaseInfo parseRelease(JSONObject releaseJSON) {
+        try {
+            String notes = releaseJSON.getString(KEY_BODY);
+            JSONArray assetArray = releaseJSON.getJSONArray(KEY_ASSETS);
+            for (int i = 0; i < assetArray.length(); i++) {
+                JSONObject assetJSON = assetArray.getJSONObject(i);
+                String assetName = assetJSON.getString(KEY_ASSET_NAME);
+                if (assetName.endsWith(APK_SUFFIX)) {
+                    String apkName = assetName.substring(0, assetName.length() - APK_SUFFIX.length());
+                    String[] apkNameSplits = apkName.split("-");
+                    String versionName = apkNameSplits[1];
+                    int versionCode = Integer.parseInt(apkNameSplits[2]);
+
+                    long apkSize = assetJSON.getLong(KEY_SIZE);
+                    String downloadUrl = assetJSON.getString(KEY_DOWNLOAD_URL);
+
+                    ReleaseInfo result = new ReleaseInfo();
+                    result.versionCode = versionCode;
+                    result.versionName = versionName;
+                    result.apkSize = apkSize;
+                    result.downloadUrl = downloadUrl;
+                    result.notes = notes;
+                    return result;
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+
+    public static class ReleaseInfo {
+        String versionName;
+        int versionCode;
+        String downloadUrl;
+        long apkSize;
+        String notes;
+
+        public int getVersionCode() {
+            return versionCode;
+        }
+
+        public String getVersionName() {
+            return versionName;
+        }
+
+        public String getDownloadUrl() {
+            return downloadUrl;
+        }
+
+        public long getApkSize() {
+            return apkSize;
+        }
+
+        public String getNotes() {
+            return notes;
+        }
+
+        @NonNull
+        @Override
+        public String toString() {
+            return String.format(Locale.ENGLISH,
+                    "VersionName=%s, VersionCode=%d, DownloadUrl=%s, APKSize=%d, notes=%s",
+                    versionName, versionCode, downloadUrl, apkSize, notes);
+        }
+    }
+}
diff --git a/app/src/main/java/com/espressif/espblufi/ui/SettingsActivity.java b/app/src/main/java/com/espressif/espblufi/ui/SettingsActivity.java
index f731de6..aa15a52 100644
--- a/app/src/main/java/com/espressif/espblufi/ui/SettingsActivity.java
+++ b/app/src/main/java/com/espressif/espblufi/ui/SettingsActivity.java
@@ -1,7 +1,9 @@
 package com.espressif.espblufi.ui;
 
+import android.content.Intent;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
+import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.preference.EditTextPreference;
@@ -9,7 +11,10 @@
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceFragment;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.Toolbar;
+
+import android.preference.PreferenceScreen;
 import android.text.TextUtils;
 
 import com.espressif.espblufi.R;
@@ -17,8 +22,15 @@
 import com.espressif.espblufi.app.BlufiApp;
 import com.espressif.espblufi.constants.BlufiConstants;
 import com.espressif.espblufi.constants.SettingsConstants;
+import com.espressif.espblufi.task.BlufiAppReleaseTask;
+
+import java.util.concurrent.atomic.AtomicReference;
 
 import blufi.espressif.BlufiClient;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.schedulers.Schedulers;
+import libs.espressif.app.AppUtil;
 
 public class SettingsActivity extends BaseActivity {
 
@@ -42,6 +54,9 @@ public static class SettingsFragment extends PreferenceFragment implements Prefe
         private EditTextPreference mMtuPref;
         private EditTextPreference mBlePrefixPref;
 
+        private Preference mVersionCheckPref;
+        private volatile BlufiAppReleaseTask.ReleaseInfo mAppLatestRelease;
+
         @Override
         public void onCreate(Bundle savedInstanceState) {
             super.onCreate(savedInstanceState);
@@ -70,6 +85,8 @@ public void onCreate(Bundle savedInstanceState) {
             mBlePrefixPref.setOnPreferenceChangeListener(this);
             String blePrefix = (String) mApp.settingsGet(KEY_BLE_PREFIX, BlufiConstants.BLUFI_PREFIX);
             mBlePrefixPref.setSummary(blePrefix);
+
+            mVersionCheckPref = findPreference(getString(R.string.settings_upgrade_check_key));
         }
 
         public String getVersionName() {
@@ -84,6 +101,21 @@ public String getVersionName() {
             return version;
         }
 
+        @Override
+        public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
+            if (preference == mVersionCheckPref) {
+                if (mAppLatestRelease == null) {
+                    mVersionCheckPref.setEnabled(false);
+                    checkAppLatestRelease();
+                } else {
+                    downloadLatestRelease();
+                }
+                return true;
+            }
+
+            return super.onPreferenceTreeClick(preferenceScreen, preference);
+        }
+
         @Override
         public boolean onPreferenceChange(Preference preference, Object newValue) {
             if (preference == mMtuPref) {
@@ -107,5 +139,51 @@ public boolean onPreferenceChange(Preference preference, Object newValue) {
 
             return false;
         }
+
+        private void checkAppLatestRelease() {
+            Observable.just(new BlufiAppReleaseTask())
+                    .subscribeOn(Schedulers.io())
+                    .map(task -> new AtomicReference<>(task.requestLatestRelease()))
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .doOnNext(reference -> {
+                        mVersionCheckPref.setEnabled(true);
+
+                        mAppLatestRelease = null;
+                        BlufiAppReleaseTask.ReleaseInfo latestRelease = reference.get();
+                        if (latestRelease == null) {
+                            mVersionCheckPref.setSummary(R.string.settings_upgrade_check_failed);
+                            return;
+                        } else if (latestRelease.getVersionCode() < 0) {
+                            mVersionCheckPref.setSummary(R.string.settings_upgrade_check_not_found);
+                            return;
+                        }
+
+                        int currentVersion = AppUtil.getVersionCode(getActivity());
+                        int latestVersion = latestRelease.getVersionCode();
+                        if (latestVersion > currentVersion) {
+                            mVersionCheckPref.setSummary(R.string.settings_upgrade_check_disciver_new);
+                            mAppLatestRelease = latestRelease;
+
+                            new AlertDialog.Builder(getActivity())
+                                    .setTitle(R.string.settings_upgrade_dialog_title)
+                                    .setMessage(R.string.settings_upgrade_dialog_message)
+                                    .setNegativeButton(android.R.string.cancel, null)
+                                    .setPositiveButton(R.string.settings_upgrade_dialog_upgrade,
+                                            (dialog, which) -> downloadLatestRelease())
+                                    .show();
+                        } else {
+                            mVersionCheckPref.setSummary(R.string.settings_upgrade_check_current_latest);
+                        }
+                    })
+                    .subscribe();
+
+        }
+
+        private void downloadLatestRelease() {
+            Intent intent = new Intent(Intent.ACTION_VIEW);
+            Uri uri = Uri.parse(mAppLatestRelease.getDownloadUrl());
+            intent.setData(uri);
+            startActivity(intent);
+        }
     }  // Fragment end
 } // Activity end
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 954fd4a..4879d2b 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="app_name">EspBlufi</string>
+    <string name="app_name">EspBluFi</string>
 
     <string name="string_unknown">未知</string>
 
-    <string name="main_title">EspBlufi</string>
+    <string name="main_title">EspBluFi</string>
     <string name="main_bt_disable_msg">蓝牙不可用</string>
     <string name="main_location_disable_msg">位置信息(GPS)不可用</string>
     <string name="main_menu_settings">设置</string>
@@ -50,7 +50,7 @@
 
     <string name="settings_title">设置</string>
     <string name="settings_category_blufi_key">setting_category_blufi</string>
-    <string name="settings_category_blufi_title">Blufi</string>
+    <string name="settings_category_blufi_title">BluFi</string>
     <string name="settings_mtu_length_key">settings_key_mtu_length</string>
     <string name="settings_mtu_length_title">设置 mtu 长度</string>
     <string name="settings_mtu_length_hint">设置一个大于 %1$d 的数</string>
@@ -61,5 +61,14 @@
     <string name="settings_version_key">settings_key_version</string>
     <string name="settings_version_title">APP 版本</string>
     <string name="settings_blufi_version_key">settings_key_blufi_version</string>
-    <string name="settings_blufi_version_title">Blufi 库版本</string>
-</resources>
\ No newline at end of file
+    <string name="settings_blufi_version_title">BluFi 库版本</string>
+    <string name="settings_upgrade_check_key">settings_upgrade_check</string>
+    <string name="settings_upgrade_check_title">检查更新</string>
+    <string name="settings_upgrade_check_failed">获取最新版本信息失败</string>
+    <string name="settings_upgrade_check_not_found">没有找到更新版本</string>
+    <string name="settings_upgrade_check_current_latest">当前APP已经是最新版本</string>
+    <string name="settings_upgrade_check_disciver_new">发现新版本APP, 点击开始下载</string>
+    <string name="settings_upgrade_dialog_title">发现新版本</string>
+    <string name="settings_upgrade_dialog_message">点击[升级]下载APK</string>
+    <string name="settings_upgrade_dialog_upgrade">升级</string>
+</resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 62cfd03..3a688e9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,9 +1,9 @@
 <resources>
-    <string name="app_name">EspBlufi</string>
+    <string name="app_name">EspBluFi</string>
 
     <string name="string_unknown">Unknown</string>
 
-    <string name="main_title">EspBlufi</string>
+    <string name="main_title">EspBluFi</string>
     <string name="main_bt_disable_msg">Bluetooth is disable</string>
     <string name="main_location_disable_msg">Location is disable</string>
     <string name="main_menu_settings">Settings</string>
@@ -15,7 +15,7 @@
     <string name="blufi_function_security">Security</string>
     <string name="blufi_function_security_msg">Negotiate security with device</string>
     <string name="blufi_function_version">Version</string>
-    <string name="blufi_function_version_msg">Get the device blufi version</string>
+    <string name="blufi_function_version_msg">Get the device BluFi version</string>
     <string name="blufi_function_device_status">Status</string>
     <string name="blufi_function_device_status_msg">Get the device status</string>
     <string name="blufi_function_configure">Configure</string>
@@ -49,7 +49,7 @@
 
     <string name="settings_title">Settings</string>
     <string name="settings_category_blufi_key">setting_category_blufi</string>
-    <string name="settings_category_blufi_title">Blufi</string>
+    <string name="settings_category_blufi_title">BluFi</string>
     <string name="settings_mtu_length_key">settings_key_mtu_length</string>
     <string name="settings_mtu_length_title">Set mtu length</string>
     <string name="settings_mtu_length_hint">Enter a number great than %1$d</string>
@@ -60,5 +60,14 @@
     <string name="settings_version_key">settings_key_version</string>
     <string name="settings_version_title">APP Version</string>
     <string name="settings_blufi_version_key">settings_key_blufi_version</string>
-    <string name="settings_blufi_version_title">Blufi lib version</string>
+    <string name="settings_blufi_version_title">BluFi lib version</string>
+    <string name="settings_upgrade_check_key">settings_upgrade_check</string>
+    <string name="settings_upgrade_check_title">Check APP latest version</string>
+    <string name="settings_upgrade_check_failed">Get latest release information failed</string>
+    <string name="settings_upgrade_check_not_found">Not found new release</string>
+    <string name="settings_upgrade_check_current_latest">Current APP is latest</string>
+    <string name="settings_upgrade_check_disciver_new">Discover new version APP, Click to download</string>
+    <string name="settings_upgrade_dialog_title">Discover new version</string>
+    <string name="settings_upgrade_dialog_message">Click [Upgrade] to download APK</string>
+    <string name="settings_upgrade_dialog_upgrade">Upgrade</string>
 </resources>
diff --git a/app/src/main/res/xml/blufi_settings.xml b/app/src/main/res/xml/blufi_settings.xml
index bd62533..eaceb6c 100644
--- a/app/src/main/res/xml/blufi_settings.xml
+++ b/app/src/main/res/xml/blufi_settings.xml
@@ -20,5 +20,8 @@
         <Preference
             android:key="@string/settings_blufi_version_key"
             android:title="@string/settings_blufi_version_title"/>
+        <Preference
+            android:key="@string/settings_upgrade_check_key"
+            android:title="@string/settings_upgrade_check_title"/>
     </PreferenceCategory>
-</PreferenceScreen>
\ No newline at end of file
+</PreferenceScreen>
diff --git a/log/updatelog-en.md b/log/updatelog-en.md
index 43ed2d1..5576ec7 100644
--- a/log/updatelog-en.md
+++ b/log/updatelog-en.md
@@ -2,7 +2,10 @@
 
 # Update Log
 
-# v1.4.1
+## v1.4.2
+- Add app upgrade option in Settings
+
+## v1.4.1
 - Add error code in BluFi callback function，see class BlufiCallback
 
 ## v1.4.0
diff --git a/log/updatelog-zh-rCN.md b/log/updatelog-zh-rCN.md
index 494d8bd..b2c6cae 100644
--- a/log/updatelog-zh-rCN.md
+++ b/log/updatelog-zh-rCN.md
@@ -2,7 +2,10 @@
 
 # 更新日志
 
-# v1.4.1
+# v1.4.2
+- 设置界面内增加 APP 检查更新功能
+
+## v1.4.1
 - BluFi 回调方法中返回具体的错误码，可参考类 BlufiCallback
 
 ## v1.4.0