diff --git a/src/widgets/dialogs/qmessagebox.cpp b/src/widgets/dialogs/qmessagebox.cpp
index d29073985a2..035691f86a6 100644
--- a/src/widgets/dialogs/qmessagebox.cpp
+++ b/src/widgets/dialogs/qmessagebox.cpp
@@ -1819,9 +1819,10 @@ QMessageBox::StandardButton QMessageBox::critical(QWidget *parent, const QString
     \li As a last resort it uses the Information icon.
     \endlist
 
-    The about box has a single button labelled "OK". On \macos, the
-    about box is popped up as a modeless window; on other platforms,
-    it is currently application modal.
+    The about box has a single button labelled "OK".
+
+    On \macos, the about box is popped up as a modeless window; on
+    other platforms, it is currently application modal.
 
     \sa QWidget::windowIcon(), QApplication::activeWindow()
 */
@@ -1851,8 +1852,13 @@ void QMessageBox::about(QWidget *parent, const QString &title, const QString &te
     // should perhaps be a style hint
 #ifdef Q_OS_MAC
     oldMsgBox = msgBox;
-    msgBox->d_func()->buttonBox->setCenterButtons(true);
+    auto *d = msgBox->d_func();
+    d->buttonBox->setCenterButtons(true);
+#ifdef Q_OS_IOS
+    msgBox->setModal(true);
+#else
     msgBox->setModal(false);
+#endif
     msgBox->show();
 #else
     msgBox->exec();
@@ -1869,7 +1875,7 @@ void QMessageBox::about(QWidget *parent, const QString &title, const QString &te
 
     QApplication provides this functionality as a slot.
 
-    On \macos, the about box is popped up as a modeless window; on
+    On \macos, the aboutQt box is popped up as a modeless window; on
     other platforms, it is currently application modal.
 
     \sa QApplication::aboutQt()
@@ -1932,8 +1938,13 @@ void QMessageBox::aboutQt(QWidget *parent, const QString &title)
     // should perhaps be a style hint
 #ifdef Q_OS_MAC
     oldMsgBox = msgBox;
-    msgBox->d_func()->buttonBox->setCenterButtons(true);
+    auto *d = msgBox->d_func();
+    d->buttonBox->setCenterButtons(true);
+#ifdef Q_OS_IOS
+    msgBox->setModal(true);
+#else
     msgBox->setModal(false);
+#endif
     msgBox->show();
 #else
     msgBox->exec();