Hi, this is not 1 hour work, there is some time needed for communication, some time for design and also for developemt, testing, uploading to the App Store. Also, since it's quite simple app there is a risk that Apple will refuse to publish it. Second problem is, it can't be published under our account since we are reliable for evry content displaying in the apps published under our account and if you have some forbiden content, Apple could suspend our account, so you will need to create your account, but if create private one, it will be done in one day.
What is your budget for this app?