diff --git a/ios/kmbuild.sh b/ios/kmbuild.sh
index fd701d918d..fae76b90af 100755
--- a/ios/kmbuild.sh
+++ b/ios/kmbuild.sh
@@ -24,7 +24,7 @@ cd "$(dirname "$THIS_SCRIPT")"
 verify_on_mac
 
 display_usage ( ) {
-    echo "build.sh [-clean] [-no-kmw] [-only-framework] [-no-codesign] [-no-archive] [-no-build] [-upload-sentry]"
+    echo "build.sh [-clean] [-no-kmw] [-only-framework] [-no-codesign] [-no-archive] [-add-sim-artifact] [-no-build] [-upload-sentry]"
     echo
     echo "  -clean                  Removes all previously-existing build products for KMEI and the Keyman app before building."
     echo "  -no-kmw                 Uses existing keyman.js, doesn't try to build"
@@ -37,6 +37,7 @@ display_usage ( ) {
     echo "  -upload-sentry          Uploads debug symbols, etc, to Sentry"
     echo "  -debug                  Sets the configuration to debug mode instead of release."
     echo "  -download-resources     Download up-to-date versions of the engine's default resources from downloads.keyman.com."
+    echo "  -add-sim-artifact       Also produce a Simulator-installable .app build artifact"
 exit 1
 }
 
@@ -55,6 +56,7 @@ BUILD_PATH=$DERIVED_DATA/Build/Products
 DO_KMW_BUILD=true
 DO_KEYMANAPP=true
 DO_ARCHIVE=true
+DO_SIMULATOR_TARGET=false
 DO_CARTHAGE=true
 CLEAN_ONLY=false
 CONFIG=Release
@@ -104,6 +106,9 @@ while [[ $# -gt 0 ]] ; do
         -download-resources)
             DO_KMP_DOWNLOADS=true
             ;;
+        -add-sim-artifact)
+            DO_SIMULATOR_TARGET=true
+            ;;
     esac
     shift # past argument
 done
@@ -284,7 +289,7 @@ if [ $DO_KEYMANAPP = true ]; then
   else
     # Time to prepare the deployment archive data.
     echo ""
-    echo "Preparing .xcarchive."
+    echo "Preparing .xcarchive for real devices."
     xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme Keyman \
                 -archivePath $ARCHIVE_PATH \
                 archive -allowProvisioningUpdates \
@@ -296,13 +301,25 @@ if [ $DO_KEYMANAPP = true ]; then
     assertDirExists "$ARCHIVE_PATH"
 
     if [ $DO_CODE_SIGN == true ]; then
-      echo "Preparing .ipa file for deployment"
+      echo "Preparing .ipa file for deployment to real devices"
+      # Do NOT use the _EXT variant here; there's no scheme to ref, which will lead
+      # Xcode to generate a build error.
       xcodebuild $XCODEFLAGS -exportArchive -archivePath $ARCHIVE_PATH \
                   -exportOptionsPlist exportAppStore.plist \
                   -exportPath $BUILD_PATH/${CONFIG}-iphoneos -allowProvisioningUpdates
     fi
   fi
 
+  if [ $DO_SIMULATOR_TARGET == true ]; then
+    echo "Preparing .app file for simulator-targeted artifact for testing"
+    xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme Keyman \
+                -sdk iphonesimulator \
+                VERSION=$VERSION \
+                VERSION_WITH_TAG=$VERSION_WITH_TAG \
+                VERSION_ENVIRONMENT=$VERSION_ENVIRONMENT \
+                UPLOAD_SENTRY=$UPLOAD_SENTRY 
+  fi
+
   echo ""
   if [ $? = 0 ]; then
       echo "Build succeeded."
diff --git a/ios/tools/prepRelease.sh b/ios/tools/prepRelease.sh
index 5b97936c55..6488bbc87a 100755
--- a/ios/tools/prepRelease.sh
+++ b/ios/tools/prepRelease.sh
@@ -89,19 +89,38 @@ cd $WORK_DIR
 KEYMANAPP_IPA="build/Build/Products/Release-iphoneos/Keyman.ipa"
 KEYMANAPP_IPA_DST="keyman-ios-${BUILD_NUMBER}.ipa"
 
-echo "Copying Keyman IPA ${KEYMANAPP_IPA} => ${UPLOAD_DIR}/${KEYMANAPP_IPA/DST}..."
+echo "Copying Keyman IPA ${KEYMANAPP_IPA} => ${UPLOAD_DIR}/${KEYMANAPP_IPA_DST}..."
 cp "${KEYMANAPP_IPA}" "${WORK_DIR}/${UPLOAD_DIR}/${KEYMANAPP_IPA_DST}"
 
+KEYMANAPP_SIM_FOLDER="build/Build/Products/Release-iphonesimulator"
+KEYMANAPP_SIM_APP="$KEYMANAPP_SIM_FOLDER/Keyman.app"
+KEYMANAPP_SIM_APP_DST="keyman-ios-simulator-${BUILD_NUMBER}.app.zip"
+
+echo "Zipping Keyman simulator artifact ${KEYMANAPP_SIM_APP} => ${UPLOAD_DIR}/${KEYMANAPP_SIM_APP_DST}..."
+cd "${KEYMANAPP_SIM_FOLDER}"
+zip -qrX "${WORK_DIR}/${UPLOAD_DIR}/${KEYMANAPP_SIM_APP_DST}" "Keyman.app"
+echo "${WORK_DIR}/${UPLOAD_DIR}/${KEYMANAPP_SIM_APP_DST}"
+cd "$WORK_DIR"
+
 #
 # FirstVoices app
 #
 
-if [ ${RELEASE_OEM_FIRSTVOICES} = true ]; then
+if [ "${RELEASE_OEM_FIRSTVOICES}" = true ]; then
   FIRSTVOICESAPP_IPA="../oem/firstvoices/ios/build/Build/Products/Release-iphoneos/FirstVoices.ipa"
   FIRSTVOICESAPP_IPA_DST="firstvoices-ios-${BUILD_NUMBER}.ipa"
 
-  echo "Copying FirstVoices IPA ${FIRSTVOICESAPP_IPA} => ${UPLOAD_DIR}/${FIRSTVOICESAPP_IPA/DST}..."
+  echo "Copying FirstVoices IPA ${FIRSTVOICESAPP_IPA} => ${UPLOAD_DIR}/${FIRSTVOICESAPP_IPA_DST}..."
   cp "${FIRSTVOICESAPP_IPA}" "${WORK_DIR}/${UPLOAD_DIR}/${FIRSTVOICESAPP_IPA_DST}"
+
+  FIRSTVOICESAPP_SIM_FOLDER="../oem/firstvoices/ios/build/Build/Products/Release-iphonesimulator/"
+  FIRSTVOICESAPP_SIM_APP="$FIRSTVOICESAPP_SIM_FOLDER/FirstVoices.app"
+  FIRSTVOICESAPP_SIM_APP_DST="firstvoices-ios-simulator-${BUILD_NUMBER}.app.zip"
+
+  echo "Zipping FirstVoices simulator artifact ${FIRSTVOICESAPP_SIM_APP} => ${UPLOAD_DIR}/${KEYMANAPP_SIM_APP_DST}..."
+  cd "${FIRSTVOICESAPP_SIM_FOLDER}"
+  zip -qrX "${WORK_DIR}/${UPLOAD_DIR}/${FIRSTVOICESAPP_SIM_APP_DST}" "FirstVoices.app"
+  cd "$WORK_DIR"
 fi
 
 #
@@ -115,4 +134,4 @@ write_download_info "Keyman for iPhone and iPad" "${KEYMANAPP_IPA_DST}" "${BUILD
 
 if [ ${RELEASE_OEM_FIRSTVOICES} = true ]; then
   write_download_info "FirstVoices Keyboards" "${FIRSTVOICESAPP_IPA_DST}" "${BUILD_NUMBER}" "${TIER}" "ios"
-fi
\ No newline at end of file
+fi
diff --git a/oem/firstvoices/ios/build_common.sh b/oem/firstvoices/ios/build_common.sh
index e83daca0f0..47ff14ee48 100755
--- a/oem/firstvoices/ios/build_common.sh
+++ b/oem/firstvoices/ios/build_common.sh
@@ -22,13 +22,14 @@ fi
 display_usage ( ) {
     echo "build.sh [-no-update] | [-no-archive] | [-lib-build] | [-lib-ignore] | [-clean]"
     echo
-    echo "  -clean          Removes all previously-existing build products for this project before building."
-    echo "  -no-update      If an in-place copy of KeymanEngine.framework exists, does not seek out an updated copy."
-    echo "  -lib-build      Actively rebuilds KMEI before copying its build products to project resources."
-    echo "  -lib-nobuild    Prevents the build script from building KeymanEngine under any circumstances."
-    echo "  -no-carthage    Disables downloading and building for dependencies."
-    echo "  -no-codesign    Performs the build without code signing."
-    echo "  -debug          Sets the configuration to debug mode instead of release."
+    echo "  -clean             Removes all previously-existing build products for this project before building."
+    echo "  -no-update         If an in-place copy of KeymanEngine.framework exists, does not seek out an updated copy."
+    echo "  -lib-build         Actively rebuilds KMEI before copying its build products to project resources."
+    echo "  -lib-nobuild       Prevents the build script from building KeymanEngine under any circumstances."
+    echo "  -no-carthage       Disables downloading and building for dependencies."
+    echo "  -no-codesign       Performs the build without code signing."
+    echo "  -debug             Sets the configuration to debug mode instead of release."
+    echo "  -add-sim-artifact  Also produce a Simulator-installable .app build artifact"
     echo
     echo "  If no settings are specified this script will grab a copy of the most recent build of KeymanEngine,"
     echo "  performing an initial build of it if necessary."
@@ -60,6 +61,7 @@ do_clean ( ) {
 
 DO_UPDATE=true
 DO_ARCHIVE=true
+DO_SIMULATOR_TARGET=false
 DO_CARTHAGE=true
 FORCE_KMEI_BUILD=false
 ALLOW_KMEI_BUILD=true
@@ -103,6 +105,9 @@ while [[ $# -gt 0 ]] ; do
             CONFIG=Debug
             KMEI_FLAGS="$KMEI_FLAGS -debug"
             ;;
+        -add-sim-artifact)
+            DO_SIMULATOR_TARGET=true
+            ;;
     esac
     shift
 done
@@ -186,25 +191,37 @@ if [ $CODE_SIGN = true ]; then
   if [ $DO_ARCHIVE = true ]; then
     # Time to prepare the deployment archive data.
     echo ""
-    echo "Preparing .ipa file for deployment."
+    echo "Preparing .ipa file for deployment to real devices."
     xcodebuild $XCODEFLAGS_EXT -scheme $TARGET -archivePath $ARCHIVE_PATH archive -allowProvisioningUpdates \
                VERSION=$VERSION \
                VERSION_WITH_TAG=$VERSION_WITH_TAG
 
     assertDirExists "$ARCHIVE_PATH"
 
+
+    # Do NOT use the _EXT variant here; there's no scheme to ref, which will lead
+    # Xcode to generate a build error.
     xcodebuild $XCODEFLAGS -exportArchive -archivePath $ARCHIVE_PATH -exportOptionsPlist exportAppStore.plist \
                -exportPath $BUILD_PATH/${CONFIG}-iphoneos -allowProvisioningUpdates \
                VERSION=$VERSION \
                VERSION_WITH_TAG=$VERSION_WITH_TAG
   else
-    xcodebuild $XCODEFLAGS -scheme "$TARGET" \
+    xcodebuild $XCODEFLAGS_EXT -scheme "$TARGET" \
                VERSION=$VERSION \
                VERSION_WITH_TAG=$VERSION_WITH_TAG
   fi
 else
   xcodebuild CODE_SIGN_ENTITLEMENTS="" CODE_SIGNING_ALLOWED="NO" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO \
-             $XCODEFLAGS -scheme "$TARGET" \
+             $XCODEFLAGS_EXT -scheme "$TARGET" \
+             VERSION=$VERSION \
+             VERSION_WITH_TAG=$VERSION_WITH_TAG
+fi
+
+if [ $DO_SIMULATOR_TARGET == true ]; then
+  echo "Preparing .app file as Simulator-targeted build artifact."
+  xcodebuild CODE_SIGN_ENTITLEMENTS="" CODE_SIGNING_ALLOWED="NO" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO \
+             $XCODEFLAGS_EXT -scheme "$TARGET" \
+             -sdk iphonesimulator \
              VERSION=$VERSION \
              VERSION_WITH_TAG=$VERSION_WITH_TAG
 fi