Even free applications require a developer account. Registering a Developer account will not be described in detail here. Then naturally prepare the App. Make sure that the iOS application has been fully tested in the simulator to confirm that there are no known bugs. After everything is ready for App publishing, you can publish the App to the App Store. App publishing requires the following processes in summary: 1. Register the App ID and specify the Bundle Identifier in Xcode2. Create a Distribution Certificate (Distribution Certificate) 3 . Create Distribution Provisioning Profile 4. Sign the application with Distribution Profile 5. Package the App 6. Upload the App in iTunes Connect Most of the above operations are completed in the Provisioning Portal, XCode, Keychain Access tool and iTunes Connect. Uploading the App must be executed in the Xcode software (that is, you must have a MacAir, MacMini, etc. running a 10.x system such as Moc OS .2. All other operations can be completed in a normal browser. Publish an iOS application to the App Store - Create an App ID. First apply for an App ID for your iOS application, which is the unique identifier of your application. Click the iOS Provisioning Portal link on the right and select App ID. Enter the application description information in Description. You can use the company name and application name to identify it, for example: com.company.demoapp. Then open X-Code and select Target gt; Summary. Enter the Bundle Identifier registered above in the Identifier input box. Publish the iOS application to the App Store - Create a Distribution Certificate. iOS applications have a security certificate for verification. Developer identity and signature. There are detailed introductions in the Distribution column of the Provisioning Portal, but the overall steps can be summarized as follows: 1. Open Keychain Access and turn off OCSP and CRL in Preferences. 2. Click the Keychain Access menu and select Certificate Assistant gt. ; Request Certificate from Authority. 3. Enter the email address, select Saved to Disk and Let me specify key pair information. 4. Select the key size of 2048 bits and RSA algorithm. 5. Then the desktop will appear. Generate a .CSR file. 6. Then enter the Provisioning Portal, select Certificates -gt; Distribution -gt; Add Certificate, and add the .CSR signature file just created.

7. Download and install the WWDR intermediate certificate while waiting for review. 8. Refresh the page and download the certificate. Download and install. 9. The final step is to open Keychain Access. Select the private key you just installed and select Export Item in the menu to export the private key. Back up the exported private key to a safe place so that it can be restored after reinstalling the system. Publish iOS applications to the App Store - Create a Distribution Provisioning Profile. Open the Provisioning Portal and select Provisioning -gt; Distribution, select to add a new profile. To select App Store for Distribution Method, the App ID needs to be entered as the App ID applied for previously. After submitting, you need to wait a while before refreshing this page. Then you can download and install the profile. After installation the profile will be added to XCode. Publish iOS App to App Store - Check Signing and Build Settings Open XCode and select Code Signing in Build Settings. Select the Distribution Profile you just applied for in the Release settings.