diff --git a/fastlane/Fastfile b/fastlane/Fastfile
index f8edce0d..b3efe0f6 100644
--- a/fastlane/Fastfile
+++ b/fastlane/Fastfile
@@ -1,3 +1,5 @@
+require_relative "function_api_base_url_policy"
+
 XCODE_WORKSPACE = "DevLog.xcworkspace"
 XCODE_PROJ = "Application/App/App.xcodeproj"
 WIDGET_XCODE_PROJ = "Widget/WidgetExtension/WidgetExtension.xcodeproj"
@@ -13,7 +15,8 @@ TESTFLIGHT_APP_ENVIRONMENT = "staging"
 APPSTORE_APP_ENVIRONMENT = "prod"
 TESTFLIGHT_DATABASE_ID = "(default)"
 APPSTORE_DATABASE_ID = "(default)"
-SHARED_FUNCTION_API_PATH = "/api/api"
+TESTFLIGHT_FUNCTION_API_PATH = "/api"
+APPSTORE_FUNCTION_API_PATH = "/api/api"
 APP_CONFIG_XCCONFIG_PATH = File.expand_path(
   "../Application/App/Sources/Resource/Config.xcconfig",
   __dir__
@@ -114,19 +117,13 @@ rescue SystemCallError => error
   UI.user_error!("Could not read app configuration file at #{expanded_path}: #{error.message}")
 end
 
-def verify_function_api_base_url_policy(function_api_base_url)
-  require "uri"
-
-  uri = URI.parse(function_api_base_url)
-  is_valid = uri.is_a?(URI::HTTPS) &&
-    !uri.host.to_s.empty? &&
-    uri.path == SHARED_FUNCTION_API_PATH &&
-    uri.query.nil? &&
-    uri.fragment.nil?
+def verify_function_api_base_url_policy(function_api_base_url, expected_path:)
+  is_valid = FunctionAPIBaseURLPolicy.valid?(
+    function_api_base_url,
+    expected_path: expected_path
+  )
 
   UI.user_error!("Invalid FUNCTION_API_BASE_URL for store build") if !is_valid
-rescue URI::InvalidURIError
-  UI.user_error!("Invalid FUNCTION_API_BASE_URL for store build")
 end
 
 default_platform(:ios)
@@ -180,12 +177,14 @@ platform :ios do
       when TESTFLIGHT_CONFIGURATION
         {
           database_id: TESTFLIGHT_DATABASE_ID,
-          function_api_base_url: function_api_base_url_from_xcconfig(TESTFLIGHT_CONFIGURATION)
+          function_api_base_url: function_api_base_url_from_xcconfig(TESTFLIGHT_CONFIGURATION),
+          function_api_path: TESTFLIGHT_FUNCTION_API_PATH
         }
       when APPSTORE_CONFIGURATION
         {
           database_id: APPSTORE_DATABASE_ID,
-          function_api_base_url: function_api_base_url_from_xcconfig(APPSTORE_CONFIGURATION)
+          function_api_base_url: function_api_base_url_from_xcconfig(APPSTORE_CONFIGURATION),
+          function_api_path: APPSTORE_FUNCTION_API_PATH
         }
       else
         UI.user_error!("Unsupported store configuration: #{configuration}")
@@ -194,7 +193,10 @@ platform :ios do
     UI.user_error!("Missing Firestore database ID for #{configuration}") if database_id.empty?
     UI.user_error!("Missing Function API base URL for #{configuration}") if function_api_base_url.empty?
 
-    verify_function_api_base_url_policy(function_api_base_url)
+    verify_function_api_base_url_policy(
+      function_api_base_url,
+      expected_path: expected_configuration[:function_api_path]
+    )
 
     if database_id != expected_configuration[:database_id]
       UI.user_error!(
diff --git a/fastlane/function_api_base_url_policy.rb b/fastlane/function_api_base_url_policy.rb
new file mode 100644
index 00000000..b1458b63
--- /dev/null
+++ b/fastlane/function_api_base_url_policy.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require "uri"
+
+module FunctionAPIBaseURLPolicy
+  module_function
+
+  def valid?(function_api_base_url, expected_path:)
+    uri = URI.parse(function_api_base_url)
+
+    uri.is_a?(URI::HTTPS) &&
+      !uri.host.to_s.empty? &&
+      uri.path == expected_path &&
+      uri.query.nil? &&
+      uri.fragment.nil?
+  rescue URI::InvalidURIError
+    false
+  end
+end
diff --git a/fastlane/test/function_api_base_url_policy_test.rb b/fastlane/test/function_api_base_url_policy_test.rb
new file mode 100644
index 00000000..dbf868f6
--- /dev/null
+++ b/fastlane/test/function_api_base_url_policy_test.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+require_relative "../function_api_base_url_policy"
+
+def assert_policy(function_api_base_url, expected_path:, expected:)
+  actual = FunctionAPIBaseURLPolicy.valid?(
+    function_api_base_url,
+    expected_path: expected_path
+  )
+  return if actual == expected
+
+  raise "Expected #{function_api_base_url.inspect} with #{expected_path.inspect} to be #{expected}, got #{actual}"
+end
+
+valid_cases = [
+  ["https://example.com/api", "/api"],
+  ["https://example.com/api/api", "/api/api"]
+]
+
+invalid_cases = [
+  ["https://example.com/api/api", "/api"],
+  ["https://example.com/api", "/api/api"],
+  ["http://example.com/api", "/api"],
+  ["https:///api", "/api"],
+  ["https://example.com/api?source=testflight", "/api"],
+  ["https://example.com/api#fragment", "/api"],
+  ["https://example .com/api", "/api"]
+]
+
+valid_cases.each do |function_api_base_url, expected_path|
+  assert_policy(
+    function_api_base_url,
+    expected_path: expected_path,
+    expected: true
+  )
+end
+
+invalid_cases.each do |function_api_base_url, expected_path|
+  assert_policy(
+    function_api_base_url,
+    expected_path: expected_path,
+    expected: false
+  )
+end
+
+puts "FunctionAPIBaseURLPolicy: #{valid_cases.count + invalid_cases.count} checks passed"