diff --git a/apps/com.example.cputest/META-INF/MANIFEST.MF b/apps/com.example.cputest/META-INF/MANIFEST.MF
new file mode 100644
index 00000000..9e456428
--- /dev/null
+++ b/apps/com.example.cputest/META-INF/MANIFEST.MF
@@ -0,0 +1,2 @@
+Manifest-Version: 1.0
+Name: CPUTester
diff --git a/apps/com.example.cputest/assets/main.py b/apps/com.example.cputest/assets/main.py
new file mode 100644
index 00000000..ff9fe3d5
--- /dev/null
+++ b/apps/com.example.cputest/assets/main.py
@@ -0,0 +1,83 @@
+import time
+import hashlib
+import os
+
+# Configuration
+TEST_DURATION = 5  # Duration of each test in seconds
+DATA_SIZE = 1024   # 1KB of data for SHA-256 test
+DATA = os.urandom(DATA_SIZE)  # Generate 1KB of random data for SHA-256
+
+def stress_test_busy_loop():
+    print("\nStarting busy loop stress test...")
+    iterations = 0
+    start_time = time.ticks_ms()
+    end_time = start_time + (TEST_DURATION * 1000)
+    
+    while time.ticks_ms() < end_time:
+        iterations += 1
+    
+    duration_ms = time.ticks_diff(time.ticks_ms(), start_time)
+    iterations_per_second = (iterations / duration_ms) * 1000
+    print(f"Busy loop test completed: {iterations_per_second:.2f} iterations/second")
+    return iterations_per_second
+
+def stress_test_busy_loop_with_yield():
+    print("\nStarting busy loop with yield (sleep_ms(0)) stress test...")
+    iterations = 0
+    start_time = time.ticks_ms()
+    end_time = start_time + (TEST_DURATION * 1000)
+    
+    while time.ticks_ms() < end_time:
+        iterations += 1
+        time.sleep_ms(0)  # Yield to other tasks
+    
+    duration_ms = time.ticks_diff(time.ticks_ms(), start_time)
+    iterations_per_second = (iterations / duration_ms) * 1000
+    print(f"Busy loop with yield test completed: {iterations_per_second:.2f} iterations/second")
+    return iterations_per_second
+
+def stress_test_sha256():
+    print("\nStarting SHA-256 stress test (1KB data)...")
+    iterations = 0
+    start_time = time.ticks_ms()
+    end_time = start_time + (TEST_DURATION * 1000)
+    
+    while time.ticks_ms() < end_time:
+        hashlib.sha256(DATA).digest()  # Compute SHA-256 on 1KB data
+        iterations += 1
+    
+    duration_ms = time.ticks_diff(time.ticks_ms(), start_time)
+    iterations_per_second = (iterations / duration_ms) * 1000
+    print(f"SHA-256 test completed: {iterations_per_second:.2f} iterations/second")
+    return iterations_per_second
+
+def main():
+    print("Starting CPU stress tests...")
+    
+    # Run busy loop test
+    busy_loop_ips = stress_test_busy_loop()
+    
+    # Small delay to stabilize system
+    time.sleep_ms(500)
+    
+    # Run busy loop with yield test
+    yield_loop_ips = stress_test_busy_loop_with_yield()
+    
+    # Small delay to stabilize system
+    time.sleep_ms(500)
+    
+    # Run SHA-256 test
+    sha256_ips = stress_test_sha256()
+    
+    # Summary
+    print("\nTest Summary:")
+    print(f"Busy loop: {busy_loop_ips:.2f} iterations/second")
+    print(f"Busy loop with yield: {yield_loop_ips:.2f} iterations/second")
+    print(f"SHA-256 (1KB): {sha256_ips:.2f} iterations/second")
+    print("All tests completed.")
+
+try:
+    main()
+except Exception as e:
+    print(f"Error during tests: {e}")
+
diff --git a/apps/com.example.cputest/res/mipmap-mdpi/launcher_icon.png b/apps/com.example.cputest/res/mipmap-mdpi/launcher_icon.png
new file mode 100644
index 00000000..f28f284c
Binary files /dev/null and b/apps/com.example.cputest/res/mipmap-mdpi/launcher_icon.png differ
diff --git a/apps/com.example.memtester/META-INF/MANIFEST.MF b/apps/com.example.memtester/META-INF/MANIFEST.MF
new file mode 100644
index 00000000..0c810526
--- /dev/null
+++ b/apps/com.example.memtester/META-INF/MANIFEST.MF
@@ -0,0 +1,2 @@
+Manifest-Version: 1.0
+Name: MemTest
diff --git a/apps/com.example.memtester/assets/main.py b/apps/com.example.memtester/assets/main.py
new file mode 100644
index 00000000..1c0f7686
--- /dev/null
+++ b/apps/com.example.memtester/assets/main.py
@@ -0,0 +1,83 @@
+import gc
+import time
+
+# Configuration
+ALLOCATION_TIMEOUT_MS = 100  # Timeout for a single allocation (in milliseconds)
+
+def test_allocation(buffer_size, n):
+    """Test how many buffers of a given size can be allocated with a timeout."""
+    print(f"\nTesting buffer size: {buffer_size} bytes (2^{n})")
+    buffers = []
+    count = 0
+    
+    try:
+        while True:
+            # Measure time for allocation
+            start_time = time.ticks_ms()
+            # Allocate a new buffer
+            buffer = bytearray(buffer_size)
+            allocation_time = time.ticks_diff(time.ticks_ms(), start_time)
+            
+            # Check if allocation took too long
+            if allocation_time > ALLOCATION_TIMEOUT_MS:
+                print(f"\nStopped after allocating {count} buffers of {buffer_size} bytes: Allocation timeout ({allocation_time}ms > {ALLOCATION_TIMEOUT_MS}ms)")
+                break
+            
+            buffers.append(buffer)
+            count += 1
+            # Print progress every 100 allocations to avoid flooding serial
+            if count % 100 == 0:
+                print(f"Allocated {count} buffers of {buffer_size} bytes", end="\r")
+    except MemoryError:
+        print(f"\nStopped after allocating {count} buffers of {buffer_size} bytes: MemoryError")
+    except Exception as e:
+        print(f"\nStopped after allocating {count} buffers of {buffer_size} bytes: {e}")
+    
+    # Free allocated buffers
+    buffers.clear()
+    gc.collect()
+    return count
+
+def main():
+    print("Starting memory allocation test...")
+    
+    # Store results for summary
+    results = []
+    
+    # Test buffer sizes of 2^n, starting from n=1 (2 bytes)
+    n = 1
+    while True:
+        buffer_size = 2 ** n
+        # Run allocation test
+        max_buffers = test_allocation(buffer_size, n)
+        results.append((buffer_size, max_buffers))
+        
+        # Check if we allocated 0 buffers (indicates we can't allocate this size)
+        if max_buffers == 0:
+            print(f"Cannot allocate buffers of size {buffer_size} bytes. Stopping test.")
+            break
+        
+        # Clean up memory before next test
+        gc.collect()
+        time.sleep_ms(100)  # Brief delay to stabilize system
+        
+        n += 1
+    
+    # Print summary report
+    print("\n=== Memory Allocation Test Summary ===")
+    print("Buffer Size (bytes) | Max Buffers Allocated")
+    print("-" * 40)
+    for buffer_size, max_buffers in results:
+        print(f"{buffer_size:>18} | {max_buffers:>20}")
+    print("=====================================")
+    print("Test completed.")
+
+if __name__ == "__main__":
+    try:
+        # Run garbage collection before starting to ensure clean state
+        gc.collect()
+        main()
+    except Exception as e:
+        print(f"Error during test: {e}")
+
+
diff --git a/apps/com.example.memtester/res/mipmap-mdpi/launcher_icon.png b/apps/com.example.memtester/res/mipmap-mdpi/launcher_icon.png
new file mode 100644
index 00000000..f28f284c
Binary files /dev/null and b/apps/com.example.memtester/res/mipmap-mdpi/launcher_icon.png differ
diff --git a/apps/com.example.threadtester/assets/main.py b/apps/com.example.threadtester/assets/main.py
index 168a318e..1c663261 100644
--- a/apps/com.example.threadtester/assets/main.py
+++ b/apps/com.example.threadtester/assets/main.py
@@ -1,3 +1,11 @@
+# Maximum threads with stack size 1024: 48
+# Maximum threads with stack size 2048: 48
+# Maximum threads with stack size 4096: 48
+# Maximum threads with stack size 8192: 22
+# Maximum threads with stack size 16386: 10
+# Maximum threads with stack size 32768: 3
+# Maximum threads with stack size 65536: 1
+
 import _thread
 import time
 
@@ -65,7 +73,7 @@ def main():
     wifi_icon = lv.label(lv.screen_active())
     wifi_icon.set_text("Test label")
     wifi_icon.align(lv.ALIGN.CENTER, 0, 0)
-    wifi_icon.set_style_text_color(COLOR_TEXT_WHITE, 0)
+    wifi_icon.set_style_text_color(lv.color_hex(0x0000FF), 0)
     
     print("done!")
 
@@ -76,4 +84,3 @@ if __name__ == "__main__":
     except Exception as e:
         print(f"Error in main: {e}")
 
-main()
diff --git a/main.py b/main.py
index 754a5a5b..2ffea7a8 100644
--- a/main.py
+++ b/main.py
@@ -230,8 +230,8 @@ def execute_script(script_source, is_file, lvgl_obj, return_to_launcher):
         script_globals = {
             'lv': lv,
             'subwindow': lvgl_obj,
-            'run_app': run_app
-            #'run_launcher' : run_launcher
+            'run_app': run_app,
+            '__name__': "__main__"
         }
         if is_file:
             print(f"Thread {thread_id}: reading script from file: {script_source}")