diff --git a/doc/help.htm b/doc/help.htm
index 6bd3ff7..00df5dd 100644
--- a/doc/help.htm
+++ b/doc/help.htm
@@ -13,6 +13,14 @@
   Calls QGuiApplication::clipboard()->text().
 
 
+<b>copy-all-asset-files ()</b>
+
+  Mobile only. Preamble: all asset files are automatically copied to the app
+  directory on the very first app startup.
+  If you eventually need to copy additional asset files, or replace the current
+  ones, use this function (after installing an app update).
+
+
 <b>define-qt-wrappers (qt-library &rest what)</b>
 
   Defines Lisp methods for all Qt methods/signals/slots of given library,
diff --git a/src/cpp/lqml.cpp b/src/cpp/lqml.cpp
index 1d21ef7..c769c9e 100644
--- a/src/cpp/lqml.cpp
+++ b/src/cpp/lqml.cpp
@@ -7,7 +7,7 @@
 #include <QQuickView>
 #include <QDebug>
 
-const char LQML::version[] = "22.8.1"; // August 2022
+const char LQML::version[] = "22.8.2"; // August 2022
 
 extern "C" void ini_LQML(cl_object);
 
diff --git a/src/lisp/ini.lisp b/src/lisp/ini.lisp
index 661bc4e..10625f4 100644
--- a/src/lisp/ini.lisp
+++ b/src/lisp/ini.lisp
@@ -327,11 +327,17 @@
     (setf (logical-pathname-translations "HOME")
           (list (list "home:**;*.*"
                       (merge-pathnames "**/*.*" (user-homedir-pathname))))))
-  ;; copy all asset files on first startup of app
-  ;; (note that PROBE-FILE is a hack here: for copying eventual, additional
-  ;; asset files, either the whole directory "encodings/" needs to be removed
-  ;; from within the app, or the app needs to be uninstalled first)
-  (unless (probe-file (merge-pathnames "encodings/"))
+  (copy-all-asset-files t))
+
+(defun copy-all-asset-files (&optional ini)
+  "args: ()
+  Mobile only. Preamble: all asset files are automatically copied to the app
+  directory on the very first app startup.
+  If you eventually need to copy additional asset files, or replace the current
+  ones, use this function (after installing an app update)."
+  #+mobile
+  (when (or (not ini)
+            (not (probe-file (merge-pathnames "encodings/"))))
     #+ios
     (flet ((dir (assets)
              (namestring (merge-pathnames assets *bundle-root*))))
@@ -340,7 +346,9 @@
         (copy-asset-files assets assets)
         (copy-asset-files local-assets local-assets)))
     #+android
-    (copy-asset-files)))
+    (copy-asset-files))
+  #-mobile
+  :mobile-only)
 
 ;;; alias
 
diff --git a/src/lisp/package.lisp b/src/lisp/package.lisp
index 9038e7a..1298f08 100644
--- a/src/lisp/package.lisp
+++ b/src/lisp/package.lisp
@@ -7,6 +7,7 @@
    #:*root-item*
    #:*caller*
    #:clipboard-text
+   #:copy-all-asset-files
    #:define-qt-wrappers
    #:disable-clipboard-menu
    #:ensure-permissions