When do you send the apps?
After your purchase you can request the apps and the instructions on how to publish them, please send an email to firstname.lastname@example.org
Do you have any apps examples?
IOS (Iphone and Ipad): https://itunes.apple.com/us/app/ordering-online-system-v3/id972982247?mt=8
Once we generate the app if i want to change the logo i need to regenerate the app or it will update automatically?
If you mean the logo of your app yes, if you mean the logo of your site that is also accesible on yoursite.com/mobile.php
What type of changes can't be changed once generated the app? Codes customization i suppose.
Domain name, url of your site and app logos. But you can regenerate the app and submit it again later.
The business, menus, users, categories, zone maps and products we add automatically update in the app right?
Yes of course, everything is linked to your database and mobile version yoursite.com/mobile.php