Model's attempt to fix: 1) Only the first itnerval making a sound, all subsequent countdowns being silent. 2) App opening up directly to the Alarms & Reminders screen to get permissions approved without any prompting the user on what is going on.

app/src/main/java/com/hyperling/apps/infinitetimer/MainActivity.java

@@ -97,8 +97,16 @@ public class MainActivity extends AppCompatActivity {
         // Check exact alarm permission for Android 12+
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && !Alert.isExactAlarmAllowed(this)) {
             if (DEBUG) Log.w(tag, "Exact alarm permission not granted, requesting...");
-            Intent intent = new Intent(Settings.ACTION_REQUEST_SCHEDULE_EXACT_ALARM);
-            startActivity(intent);
+            new AlertDialog.Builder(MainActivity.this)
+                .setTitle("Alarm Permission Required")
+                .setMessage("To ensure the timer alerts you reliably, please grant 'Alarms & Reminders' permission in system settings.")
+                .setPositiveButton("Grant Permission", (d, w) -> {
+                    Intent intent = new Intent(Settings.ACTION_REQUEST_SCHEDULE_EXACT_ALARM);
+                    startActivity(intent);
+                })
+                .setNegativeButton("Not Now", (d, w) -> d.dismiss())
+                .setCancelable(false)
+                .show();
         }
 
         if (DEBUG){