Registering a mobile app on the Apple App Store and Google Play Store involves several steps and adhering to specific guidelines. Here's a general overview of the process for both platforms:

Apple App Store (iOS):

1. Enroll in the Apple Developer Program:

  1. Visit the Apple Developer website (https://developer.apple.com/) and enroll in the program. There's an annual fee associated with enrollment.

2. Prepare your App:

  1. Develop your iOS app according to Apple's guidelines and standards. Ensure your app is functional, complies with all guidelines, and is ready for submission.

3. Create App ID and Provisioning Profile:

  1. In the Apple Developer Portal, create an App ID for your app and a provisioning profile to allow distribution.

4. Prepare App Assets:

  1. Create app icons, screenshots, and other required assets in the prescribed formats and sizes.

5. Submit the App:

  1. Use Apple's App Store Connect to submit your app. You'll need to provide detailed information about your app, including descriptions, keywords, and pricing.

6. App Review:

  1. Apple will review your app to ensure it complies with their guidelines and is free from bugs and issues. This process can take some time.

7. Release Your App:

  1. Once approved, you can set a release date and make your app available to the public.

Google Play Store (Android):

1. Create a Developer Account:

  1. Go to the Google Play Console (https://play.google.com/console) and sign in with your Google account. Pay a one-time registration fee.

2. Prepare Your App:

  1. Develop your Android app following Google's guidelines. Ensure your app is functional, complies with all guidelines, and is ready for submission.

3. Create Store Listing:

  1. Fill out the necessary information about your app, including descriptions, screenshots, and pricing details. You can customize your app's listing to attract users.

4. Upload App APK:

  1. Prepare the Android Package (APK) file for your app and upload it to the Play Console.

5. App Content Rating:

  1. Provide content rating information for your app.

6. Set Pricing and Distribution:

  1. Choose whether your app is free or paid. Decide which countries it will be available in.

7. App Review:

  1. Google performs a review of your app to ensure it complies with their policies. This process usually takes less time than Apple's review process.

8. Publish Your App:

  1. Once your app is approved, you can set a release date and make your app available to users.

9. App Updates:

  1. Remember that you'll need to go through a similar process for each app update.

Both Apple and Google have specific guidelines and requirements that you must follow, so be sure to review their documentation thoroughly. It's also essential to thoroughly test your app and make sure it complies with their respective policies to avoid rejections and delays in getting your app published.