diff --git a/apps/primetimelato/ChangeLog b/apps/primetimelato/ChangeLog
index 46690e360..1be18255b 100644
--- a/apps/primetimelato/ChangeLog
+++ b/apps/primetimelato/ChangeLog
@@ -1,2 +1,3 @@
 0.01: first release
 0.02: added option to buzz on prime, with settings
+0.03: added option to debug settings and test fw 2.15.93 load speed ups
diff --git a/apps/primetimelato/app.js b/apps/primetimelato/app.js
index 817da7cda..b4b9d5bb9 100644
--- a/apps/primetimelato/app.js
+++ b/apps/primetimelato/app.js
@@ -2,7 +2,8 @@ const h = g.getHeight();
 const w = g.getWidth();
 const SETTINGS_FILE = "primetimelato.json";
 let settings;
-
+let setStr = 'U';
+    
 Graphics.prototype.setFontLato = function(scale) {
   // Actual height 41 (43 - 3)
   this.setFontCustom(
@@ -28,6 +29,22 @@ Graphics.prototype.setFontLatoSmall = function(scale) {
 function loadSettings() {
   settings = require("Storage").readJSON(SETTINGS_FILE,1)||{};
   settings.buzz_on_prime = (settings.buzz_on_prime === undefined ? false : settings.buzz_on_prime);
+  settings.debug = (settings.debug === undefined ? false : settings.debug);
+
+  switch(settings.buzz_on_prime) {
+  case true:
+    setStr = 'T';
+    break;
+
+  case false:
+    setStr = 'F';
+    break;
+
+  case undefined:
+  default:
+    setStr = 'U';
+    break;
+  }
 }
 	
 // creates a list of prime factors of n and outputs them as a string, if n is prime outputs "Prime Time!"
@@ -69,9 +86,16 @@ function draw() {
   g.setColor(0,0,0);
   g.fillRect(Bangle.appRect);
 
+  g.setColor(100,100,100);
+
+  if (settings.debug) {
+    g.setFontLatoSmall();
+    g.setFontAlign(0, 0);
+    g.drawString(setStr, w/2, h/4);
+  }
+  
   g.setFontLato();
   g.setFontAlign(0, 0);
-  g.setColor(100,100,100);
   g.drawString(timeStr, w/2, h/2);
 
   g.setFontLatoSmall();
diff --git a/apps/primetimelato/metadata.json b/apps/primetimelato/metadata.json
index 6b292c380..dd200e5d3 100644
--- a/apps/primetimelato/metadata.json
+++ b/apps/primetimelato/metadata.json
@@ -1,6 +1,6 @@
 { "id": "primetimelato",
-  "name": "Prime Time Lato Clock",
-  "version": "0.02",  
+  "name": "Prime Time Lato",
+  "version": "0.03",  
   "type": "clock",
   "description": "A clock that tells you the primes of the time in the Lato font",
   "icon": "app.png",
diff --git a/apps/primetimelato/settings.js b/apps/primetimelato/settings.js
index 5550055eb..069c976c8 100644
--- a/apps/primetimelato/settings.js
+++ b/apps/primetimelato/settings.js
@@ -3,7 +3,8 @@
 
   // initialize with default settings...
   let s = {
-    'buzz_on_prime': true
+    'buzz_on_prime': true,
+    'debug': false
   }
 
   // ...and overwrite them with any saved values
@@ -29,6 +30,16 @@
         s.buzz_on_prime = v;
         save();
       },
+    },
+
+    'Debug': {
+      value: !!s.debug,
+      onchange: v => {
+        s.debug = v;
+        save();
+      },
     }
+
+    
   })
 })