diff --git a/scripts/build.sh b/scripts/build.sh
new file mode 100755
index 000000000..cc637b6d9
--- /dev/null
+++ b/scripts/build.sh
@@ -0,0 +1,105 @@
+#!/usr/bin/env bash
+
+# Builds the React Native SDK.
+#
+# Usage:
+#   ./build.sh           Build the full SDK stack: JS/web, iOS, and Android.
+#   ./build.sh ios       Install JS dependencies and pods, then build JS and the iOS example workspace.
+#   ./build.sh android   Install JS dependencies, then build JS and Android.
+#   ./build.sh web       Install JS dependencies, then build the web/Expo package.
+#
+# Valid platforms: ios, android, web
+
+set -euo pipefail
+
+usage() {
+  echo "Usage: $0 [ios|android|web]"
+}
+
+if [ "$#" -gt 1 ]; then
+  usage
+  exit 1
+fi
+
+platform="${1:-}"
+
+build_js_sdk() {
+  yarn build
+}
+
+install_js_dependencies() {
+  yarn
+}
+
+install_ios_dependencies() {
+  yarn example pods
+}
+
+build_web_sdk() {
+  yarn prepare-expo
+}
+
+is_xcpretty_installed() {
+  command -v xcpretty >/dev/null 2>&1
+}
+
+compile_ios_sdk_and_purchase_tester() {
+  if is_xcpretty_installed; then
+    xcodebuild \
+      -workspace examples/purchaseTesterTypescript/ios/PurchaseTester.xcworkspace \
+      -scheme PurchaseTester \
+      -configuration Debug \
+      -sdk iphonesimulator \
+      -destination "generic/platform=iOS Simulator" \
+      build | xcpretty
+  else
+    xcodebuild \
+      -workspace examples/purchaseTesterTypescript/ios/PurchaseTester.xcworkspace \
+      -scheme PurchaseTester \
+      -configuration Debug \
+      -sdk iphonesimulator \
+      -destination "generic/platform=iOS Simulator" \
+      build
+  fi
+}
+
+compile_android_sdk_and_purchase_tester() {
+  (
+    cd examples/purchaseTesterTypescript/android
+    ./gradlew :react-native-purchases:assembleDebug
+  )
+}
+
+case "$platform" in
+  "")
+    echo "About to build the RevenueCat React Native SDK for all platforms."
+    yarn bootstrap
+    compile_ios_sdk_and_purchase_tester
+    compile_android_sdk_and_purchase_tester
+    ;;
+  ios)
+    echo "About to build the RevenueCat React Native SDK for iOS only."
+    install_js_dependencies
+    install_ios_dependencies
+    build_js_sdk
+    compile_ios_sdk_and_purchase_tester
+    ;;
+  android)
+    echo "About to build the RevenueCat React Native SDK for Android only."
+    install_js_dependencies
+    build_js_sdk
+    compile_android_sdk_and_purchase_tester
+    ;;
+  web)
+    echo "About to build the RevenueCat React Native SDK for web only."
+    install_js_dependencies
+    build_web_sdk
+    ;;
+  *)
+    echo "Invalid platform: $platform"
+    usage
+    exit 1
+    ;;
+esac
+
+echo "Done building the RevenueCat React Native SDK."