diff --git a/pkg/apple/update-cores.sh b/pkg/apple/update-cores.sh
new file mode 100755
index 0000000000..ae67968eff
--- /dev/null
+++ b/pkg/apple/update-cores.sh
@@ -0,0 +1,99 @@
+#!/bin/sh
+
+DEBUG=
+
+if [ -z "$DEBUG" ] ; then
+    CURL_DEBUG=-sf
+    UNZIP_DEBUG=-q
+    NO_RM=
+else
+    printf "Turning on debug\n"
+    CURL_DEBUG=
+    UNZIP_DEBUG=
+    NO_RM=1
+fi
+
+function debug() {
+    if [ -n "$DEBUG" ] ; then
+        printf "$@\n"
+    fi
+}
+
+if [ -z "$PROJECT_DIR" ] ; then
+    APPLE_DIR=$(dirname $0)
+else
+    APPLE_DIR="${PROJECT_DIR}/pkg/apple"
+fi
+
+if [ "$1" = "tvos" -o "$1" = "--tvos" ] ; then
+    CORES_DIR="${APPLE_DIR}/tvOS/modules"
+    PLATFORM=tvos
+    shift
+else
+    CORES_DIR="${APPLE_DIR}/iOS/modules"
+    PLATFORM=ios
+fi
+debug CORES_DIR is $CORES_DIR
+cd "$CORES_DIR"
+
+URL_BASE="https://buildbot.libretro.com/nightly/apple/${PLATFORM}-arm64/latest"
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+function update_dylib() {
+    dylib=$1
+    printf "Updating ${YELLOW}$dylib${NC}... "
+    mv "$dylib" "$dylib".bak
+    debug curl $CURL_DEBUG -o "$dylib".zip "$URL_BASE"/"$dylib".zip
+    curl $CURL_DEBUG -o "$dylib".zip "$URL_BASE"/"$dylib".zip
+    if [ ! -f "$dylib".zip ] ; then
+        printf "${RED}Download failed${NC}\n"
+        mv "$dylib".bak "$dylib"
+    else
+        debug unzip $UNZIP_DEBUG "$dylib".zip
+        unzip $UNZIP_DEBUG "$dylib".zip
+        if [ ! -f "$dylib" ] ; then
+            printf "${RED}Unzip failed${NC}\n"
+            mv "$dylib".bak "$dylib"
+        else
+            printf "${GREEN}Success!${NC}\n"
+            [ -n "$NO_RM" ] || rm "$dylib".zip "$dylib".bak
+        fi
+    fi
+}
+
+allcores=
+function get_all_cores() {
+    if [ -z "$allcores"] ; then
+        allcores=($(curl $CURL_DEBUG $URL_BASE/ | sed -e 's/></\n/g' | grep '>[^<]\+\.dylib.zip<' | sed -e 's/.*>\(.*\)<.*/\1/'))
+    fi
+}
+
+if [ -n "$1" ]; then
+    dylibs=()
+    get_all_cores
+    while [ -n "$1" ] ; do
+        if [[ "${allcores[*]}" =~ "${1}_libretro_${PLATFORM}.dylib.zip" ]] ; then
+            dylibs+=("${1}_libretro_${PLATFORM}.dylib.zip")
+        elif [[ "${allcores[*]}" =~ "${1}_libretro.dylib.zip" ]] ; then
+            dylibs+=("${1}_libretro.dylib.zip")
+        fi
+        shift
+    done
+else
+    dylibs=( *_libretro*.dylib )
+fi
+
+if [[ -z "${dylibs[*]}" ]] ; then
+    echo Available cores:
+    for i in "${allcores[@]}" ; do
+        echo $i
+    done
+fi
+
+# TODO: command line arg to indicate which cores to update
+for dylib in "${dylibs[@]}" ; do
+    update_dylib "$dylib"
+done