Upload iOS App on AppStore

It is very important to collect all of the information you need to submit before you start the process.
Requirements:-Screenshots,Name,Description,Keywords,Support URL,Marketing URL,Privacy Policy URL,App Icon,Categories,Rating,Trade Representative Contact Information etc..

The bundle identifier is the name of your app,as seen by both the App Store and iOS devices.
In your browser, navigate to Apple's Developer Portal
Log In
Click Identifiers
Click the “+” in the top right of the screen
Name the App ID the same as your app
Make sure the Bundle ID follows the standard naming convention: com.yourcompanyname.yourappname
Check any App Services the app needs, click Continue
Verify the services are correct, then click Submit.

Certificate Signing Requests are used to link your computer to your Apple developer account.
Open a program called KeyChain Access
In the top left menu, click Certificate Assistant
Click Request a Certificate From a Certificate Authority…
User email: Enter your email address
Common Name: We recommend using the name of the app
CA email is not actually required
Check Saved to Disk, click Continue
Save the Certificate Signing Request for later

Code Signing Certificates are used to link iOS apps to your Apple developer account.
In your browser, navigate to Apple's Developer Portal.
Click Certificates
Click the “+” in the top right of the screen
Click the App Store Production
Currently named “App Store and Ad Hoc” under Production
Click Continue
Upload the Certificate Signing Request created earlier
Download the Certificate
Install the certificate in your computer by double click and keep that file safe somewhere.

In your browser, navigate to Apple's Developer Portal.
Log In
Click Provisioning Profiles
Click the “+” in the top right of the screen
Click the App Store Distribution option, click Continue
Select the Bundle ID created earlier, click Continue
Select the Certificate created earlier, click Continue
Make sure the Profile Name follows the standard naming convention: App Name App Store Distribution
Click Generate
Download it
Install the provision profile on your computer by double-clicking
Keep this file somewhere safe.

Package the actual binary that users will be uploading to the store.
Start Xcode
Open the project or workspace
Update the version and build numbers
Open Build Settings
Make sure All settings is selected
Scroll to Code Signing
Use the provisioning profile created earlier
Use the code signing identity created earlier
In the top menu, select Generic iOS Device as the build destination if no actual device is connected
Menu, Project, Archive
Click Distribute
Sign in as your apple developer account
Submit to app store
Wait for the confirmation

Users will decide whether or not to install your app based on your store listing
Enter all of the information assembled in step 1
Select the build you wish to tie to the version (Note: This usually appears 10-15 minutes after sending from Xcode)
Fill in pricing information
Click Save
Fit any errors based on the messages that appear and save changes

Every app that is submitted to the store has to be reviewed by the Apple team before release.
Select the release types:-
Manual release :- after the app is accepted, a Release button will appear
Automatic release :- as soon as the app is accepted, it will be released
Wait for approval
This process usually takes 2-3 weeks for a new submission
If your app was not approved, review the notes in the Resolution Centre and make any necessary changes to the app or version information then resubmit.

If you selected Manual release, click Release your app when ready
Wait for the green “Ready for Sale” version status (This might take from 1 hour to 1 day after release)
Search for your app on the App Store