diff --git a/app/src/main/java/org/emunix/unipatcher/Settings.java b/app/src/main/java/org/emunix/unipatcher/Settings.java
index c71d277..942a255 100644
--- a/app/src/main/java/org/emunix/unipatcher/Settings.java
+++ b/app/src/main/java/org/emunix/unipatcher/Settings.java
@@ -74,4 +74,28 @@ public class Settings {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
         return prefs.getBoolean("ignore_checksum", false);
     }
+
+    public static void setPatchingSuccessful(Context context, Boolean isSuccessful) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        SharedPreferences.Editor editor = prefs.edit();
+        editor.putBoolean("patching_successful", isSuccessful);
+        editor.apply();
+    }
+
+    public static boolean getPatchingSuccessful(Context context) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        return prefs.getBoolean("patching_successful", false);
+    }
+
+    public static void setDontShowDonateSnackbarCount(Context context, int count) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        SharedPreferences.Editor editor = prefs.edit();
+        editor.putInt("dont_show_donate_snackbar", count);
+        editor.apply();
+    }
+
+    public static int getDontShowDonateSnackbarCount(Context context) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        return prefs.getInt("dont_show_donate_snackbar", 0);
+    }
 }
diff --git a/app/src/main/java/org/emunix/unipatcher/WorkerService.java b/app/src/main/java/org/emunix/unipatcher/WorkerService.java
index d77a770..2de0874 100644
--- a/app/src/main/java/org/emunix/unipatcher/WorkerService.java
+++ b/app/src/main/java/org/emunix/unipatcher/WorkerService.java
@@ -163,6 +163,7 @@ public class WorkerService extends IntentService {
             if ("ppf".equals(ext))
                 Utils.copyFile(this, romFile, outputFile);
             patcher.apply(Settings.getIgnoreChecksum(this));
+            Settings.setPatchingSuccessful(this, true);
         } catch (PatchException | IOException e) {
             if (Utils.getFreeSpace(outputFile.getParentFile()) == 0) {
                 errorMsg = getString(R.string.notify_error_not_enough_space);
@@ -219,6 +220,7 @@ public class WorkerService extends IntentService {
 
         try {
             patcher.create();
+            Settings.setPatchingSuccessful(this, true);
         } catch (PatchException | IOException e) {
             if (Utils.getFreeSpace(patchFile.getParentFile()) == 0) {
                 errorMsg = getString(R.string.notify_error_not_enough_space);
diff --git a/app/src/main/java/org/emunix/unipatcher/ui/activity/MainActivity.java b/app/src/main/java/org/emunix/unipatcher/ui/activity/MainActivity.java
index 780df60..f74a1ca 100644
--- a/app/src/main/java/org/emunix/unipatcher/ui/activity/MainActivity.java
+++ b/app/src/main/java/org/emunix/unipatcher/ui/activity/MainActivity.java
@@ -25,6 +25,7 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.support.design.widget.FloatingActionButton;
 import android.support.design.widget.NavigationView;
+import android.support.design.widget.Snackbar;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentTransaction;
@@ -40,6 +41,7 @@ import android.view.View;
 
 import org.emunix.unipatcher.BuildConfig;
 import org.emunix.unipatcher.R;
+import org.emunix.unipatcher.Settings;
 import org.emunix.unipatcher.UniPatcher;
 import org.emunix.unipatcher.ui.fragment.ActionFragment;
 import org.emunix.unipatcher.ui.fragment.CreatePatchFragment;
@@ -47,6 +49,8 @@ import org.emunix.unipatcher.ui.fragment.PatchingFragment;
 import org.emunix.unipatcher.ui.fragment.SmdFixChecksumFragment;
 import org.emunix.unipatcher.ui.fragment.SnesSmcHeaderFragment;
 
+import java.util.Random;
+
 import static android.support.v7.app.AppCompatDelegate.MODE_NIGHT_AUTO;
 import static android.support.v7.app.AppCompatDelegate.MODE_NIGHT_NO;
 import static android.support.v7.app.AppCompatDelegate.MODE_NIGHT_YES;
@@ -78,8 +82,6 @@ public class MainActivity extends AppCompatActivity
                 if (fragment != null) {
                     boolean ret = fragment.runAction();
                 }
-                //Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
-                //        .setAction("Action", null).show();
             }
         });
 
@@ -91,6 +93,7 @@ public class MainActivity extends AppCompatActivity
         }
 
         parseArgument();
+        showDonateSnackbar();
     }
 
     private void setTheme() {
@@ -132,8 +135,7 @@ public class MainActivity extends AppCompatActivity
         } else if (id == R.id.nav_rate) {
             rateApp();
         } else if (id == R.id.nav_donate) {
-            Intent donateIntent = new Intent(this, DonateActivity.class);
-            startActivity(donateIntent);
+            showDonateActivity();
         } else if (id == R.id.nav_share) {
             shareApp();
         } else if (id == R.id.nav_help) {
@@ -175,6 +177,45 @@ public class MainActivity extends AppCompatActivity
         }
     }
 
+    private void showDonateSnackbar() {
+        // don't show snackbar if the user did not patch the file successfully
+        if (!Settings.getPatchingSuccessful(this))
+            return;
+
+        // don't show snackbar some time if the user swiped off it before
+        int count = Settings.getDontShowDonateSnackbarCount(this);
+        if (count != 0) {
+            Settings.setDontShowDonateSnackbarCount(this, --count);
+            return;
+        }
+
+        // don't show snackbar each time you open the application
+        if (new Random().nextInt(6) != 0)
+            return;
+
+        Snackbar.make(findViewById(R.id.content_frame), R.string.main_activity_donate_snackbar_text, Snackbar.LENGTH_INDEFINITE)
+                    .setAction(R.string.main_activity_donate_snackbar_button, new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            showDonateActivity();
+                        }
+                    })
+                    .addCallback(new Snackbar.Callback() {
+                        @Override
+                        public void onDismissed(Snackbar snackbar, int event) {
+                            if (event == Snackbar.Callback.DISMISS_EVENT_SWIPE) {
+                                Settings.setDontShowDonateSnackbarCount(getApplicationContext(), 30);
+                            }
+                        }
+                    }
+                    ).show();
+    }
+
+    private void showDonateActivity() {
+        Intent donateIntent = new Intent(this, DonateActivity.class);
+        startActivity(donateIntent);
+    }
+
     private void shareApp() {
         Intent shareIntent = new Intent(Intent.ACTION_SEND);
         shareIntent.setType("text/plain");
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 6efbb50..a35444f 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -16,6 +16,8 @@
     <string name="main_activity_toast_rom_not_selected">No ROM file selected</string>
     <string name="main_activity_toast_patch_not_selected">No patch file selected</string>
     <string name="main_activity_toast_archives_not_supported">Archive should be unpacked in an external program</string>
+    <string name="main_activity_donate_snackbar_text">Support the development of UniPatcher by making a donation</string>
+    <string name="main_activity_donate_snackbar_button">Donate</string>
 
     <!-- Rename dialog -->
     <string name="dialog_rename_title">Rename</string>