diff --git a/README.ios.md b/README.ios.md
index 8f3afa11f4..6e1f22e99d 100644
--- a/README.ios.md
+++ b/README.ios.md
@@ -2,7 +2,7 @@
 
 ## Prerequisites (Mac OS X)
 
-* Xcode 14 or higher
+* Xcode 14 or higher (and install platform iOS 12.0 SDK or higher)
 * macOS 12 or higher
 
 (optional) To automatically install the companion app on a connected, authorized iOS device, install ideviceinstaller via Homebrew:
diff --git a/README.md b/README.md
index 020a397f6a..9c510e36cc 100644
--- a/README.md
+++ b/README.md
@@ -76,10 +76,17 @@ building on versions below the ones stated. To install on a device,
 you **must** have a valid Apple Developer account license and have
 added the relevant mobile provisioning profiles from the Developer
 portal to your Xcode organizer (see Apple's website on instructions on
-how to do this).
+how to do this).  The profile should have these **exact** details, and 
+should include a development certificate (a distribution certificate is
+not necessary):
+
+```conf
+Name:	MIT App Inventor Development
+App ID: edu.mit.appinventor.*
+```
 
 To build the MIT App Inventor companion, you will need to create a
-file called AICompanionApp.xcconfig in the components-ios directory
+file called AICompanionApp.xcconfig in the `appinventor` directory
 that sets your development team. The easiest way to do this is to copy
 the AICompanionApp.xcconfig.sample file and edit it. Alternatively,
 create a file with the following line: