diff --git a/libctru/source/system/appExit.c b/libctru/source/system/appExit.c
index f797e1d..9165425 100644
--- a/libctru/source/system/appExit.c
+++ b/libctru/source/system/appExit.c
@@ -6,7 +6,12 @@
 #include <3ds/services/fs.h>
 #include <3ds/services/hid.h>
 
-void __attribute__((weak)) __appExit(void) {
+void __attribute__((weak)) userAppExit(void);
+
+void __attribute__((weak)) __appExit(void)
+{
+	if (&userAppExit) userAppExit();
+
 	// Exit services
 	archiveUnmountAll();
 	fsExit();
diff --git a/libctru/source/system/appInit.c b/libctru/source/system/appInit.c
index 0bd3e04..47b4dbf 100644
--- a/libctru/source/system/appInit.c
+++ b/libctru/source/system/appInit.c
@@ -6,7 +6,10 @@
 #include <3ds/services/fs.h>
 #include <3ds/services/hid.h>
 
-void __attribute__((weak)) __appInit(void) {
+void __attribute__((weak)) userAppInit(void);
+
+void __attribute__((weak)) __appInit(void)
+{
 	// Initialize services
 	srvInit();
 	aptInit();
@@ -14,4 +17,6 @@ void __attribute__((weak)) __appInit(void) {
 
 	fsInit();
 	archiveMountSdmc();
+
+	if (&userAppInit) userAppInit();
 }