diff --git a/nx/include/switch/applets/error.h b/nx/include/switch/applets/error.h
index 1b3f3a8c..f350b3ff 100644
--- a/nx/include/switch/applets/error.h
+++ b/nx/include/switch/applets/error.h
@@ -43,11 +43,25 @@ typedef struct {
     ErrorContext ctx;
 } ErrorSystemConfig;
 
+/// ApplicationErrorArg
+typedef struct {
+    ErrorCommonHeader hdr;
+    u32 errorNumber;
+    u64 languageCode;
+    char dialogMessage[0x800];        ///< UTF-8 Dialog message.
+    char fullscreenMessage[0x800];    ///< UTF-8 Fullscreen message (displayed when the user clicks on "Details").
+} PACKED ErrorApplicationArg;
+
+typedef struct {
+    ErrorApplicationArg arg;
+    ErrorContext ctx;
+} ErrorApplicationConfig;
+
 /**
  * @brief Creates an ErrorSystemConfig struct.
  * @param c ErrorSystemConfig struct.
  * @param dialog_message UTF-8 dialog message.
- * @param fullscreen_message UTF-8 fullscreen message, displayed when the user clicks on "Details".
+ * @param fullscreen_message UTF-8 fullscreen message, displayed when the user clicks on "Details". Optional, can be NULL (which disables displaying Details).
  * @note Sets the following fields: type=1 and {strings}. The rest are cleared.
  * @note On pre-5.0.0 this will initialize languageCode by using: setInitialize(), setMakeLanguageCode(SetLanguage_ENUS, ...), and setExit(). This is needed since an empty languageCode wasn't supported until [5.0.0+] (which would also use SetLanguage_ENUS).
  * @warning This applet creates an error report that is logged in the system. Proceed at your own risk!
@@ -61,7 +75,7 @@ Result errorSystemCreate(ErrorSystemConfig* c, const char* dialog_message, const
 void errorSystemClose(ErrorSystemConfig* c);
 
 /**
- * @brief Launches with the specified config.
+ * @brief Launches the applet with the specified config.
  * @param c ErrorSystemConfig struct.
  */
 Result errorSystemShow(ErrorSystemConfig* c);
@@ -96,3 +110,40 @@ void errorSystemSetLanguageCode(ErrorSystemConfig* c, u64 LanguageCode);
  */
 void errorSystemSetContext(ErrorSystemConfig* c, ErrorContext* ctx);
 
+/**
+ * @brief Creates an ErrorApplicationConfig struct.
+ * @param c ErrorApplicationConfig struct.
+ * @param dialog_message UTF-8 dialog message.
+ * @param fullscreen_message UTF-8 fullscreen message, displayed when the user clicks on "Details". Optional, can be NULL (which disables displaying Details).
+ * @note Sets the following fields: type=2, unk_x1=1, and {strings}. The rest are cleared.
+ * @note On pre-5.0.0 this will initialize languageCode by using: setInitialize(), setMakeLanguageCode(SetLanguage_ENUS, ...), and setExit(). This is needed since an empty languageCode wasn't supported until [5.0.0+] (which would also use SetLanguage_ENUS).
+ * @warning This applet creates an error report that is logged in the system. Proceed at your own risk!
+ */
+Result errorApplicationCreate(ErrorApplicationConfig* c, const char* dialog_message, const char* fullscreen_message);
+
+/**
+ * @brief Closes an ErrorApplicationConfig struct.
+ * @param c ErrorApplicationConfig struct.
+ */
+void errorApplicationClose(ErrorApplicationConfig* c);
+
+/**
+ * @brief Launches the applet with the specified config.
+ * @param c ErrorApplicationConfig struct.
+ */
+Result errorApplicationShow(ErrorApplicationConfig* c);
+
+/**
+ * @brief Sets the error code number.
+ * @param c           ErrorApplicationConfig struct.
+ * @param errorNumber Error code number. Raw decimal error number which is displayed in the dialog.
+ */
+void errorApplicationSetNumber(ErrorApplicationConfig* c, u32 errorNumber);
+
+/**
+ * @brief Sets the LanguageCode.
+ * @param c            ErrorApplicationConfig struct.
+ * @param LanguageCode LanguageCode, see set.h.
+ */
+void errorApplicationSetLanguageCode(ErrorApplicationConfig* c, u64 LanguageCode);
+
diff --git a/nx/source/applets/error.c b/nx/source/applets/error.c
index 1336134d..576b4cf8 100644
--- a/nx/source/applets/error.c
+++ b/nx/source/applets/error.c
@@ -76,14 +76,16 @@ static Result _errorShowContext(const void* indata, size_t insize, ErrorContext*
     return _errorShow(indata, insize, ctx_ptr, ctx_size);
 }
 
+// System
+
 Result errorSystemCreate(ErrorSystemConfig* c, const char* dialog_message, const char* fullscreen_message) {
     Result rc=0;
 
-    memset(c, 0, sizeof(ErrorSystemConfig));
+    memset(c, 0, sizeof(*c));
     c->arg.hdr.type = 1;
 
     strncpy(c->arg.dialogMessage, dialog_message, sizeof(c->arg.dialogMessage)-1);
-    strncpy(c->arg.fullscreenMessage, fullscreen_message, sizeof(c->arg.fullscreenMessage)-1);
+    if (fullscreen_message) strncpy(c->arg.fullscreenMessage, fullscreen_message, sizeof(c->arg.fullscreenMessage)-1);
 
     if (hosversionBefore(5,0,0)) {
         rc = setInitialize();
@@ -95,7 +97,7 @@ Result errorSystemCreate(ErrorSystemConfig* c, const char* dialog_message, const
 }
 
 void errorSystemClose(ErrorSystemConfig* c) {
-    memset(c, 0, sizeof(ErrorSystemConfig));
+    memset(c, 0, sizeof(*c));
 }
 
 Result errorSystemShow(ErrorSystemConfig* c) {
@@ -120,3 +122,40 @@ void errorSystemSetContext(ErrorSystemConfig* c, ErrorContext* ctx) {
     if (ctx) memcpy(&c->ctx, ctx, sizeof(ErrorContext));
 }
 
+// Application
+
+Result errorApplicationCreate(ErrorApplicationConfig* c, const char* dialog_message, const char* fullscreen_message) {
+    Result rc=0;
+
+    memset(c, 0, sizeof(*c));
+    c->arg.hdr.type = 2;
+    c->arg.hdr.unk_x1 = 1;
+
+    strncpy(c->arg.dialogMessage, dialog_message, sizeof(c->arg.dialogMessage)-1);
+    if (fullscreen_message) strncpy(c->arg.fullscreenMessage, fullscreen_message, sizeof(c->arg.fullscreenMessage)-1);
+
+    if (hosversionBefore(5,0,0)) {
+        rc = setInitialize();
+        if (R_SUCCEEDED(rc)) rc = setMakeLanguageCode(SetLanguage_ENUS, &c->arg.languageCode);
+        setExit();
+    }
+
+    return rc;
+}
+
+void errorApplicationClose(ErrorApplicationConfig* c) {
+    memset(c, 0, sizeof(*c));
+}
+
+Result errorApplicationShow(ErrorApplicationConfig* c) {
+    return _errorShow(&c->arg, sizeof(c->arg), NULL, 0);
+}
+
+void errorApplicationSetNumber(ErrorApplicationConfig* c, u32 errorNumber) {
+    c->arg.errorNumber = errorNumber;
+}
+
+void errorApplicationSetLanguageCode(ErrorApplicationConfig* c, u64 LanguageCode) {
+    c->arg.languageCode = LanguageCode;
+}
+