You do not have to, each application created in Tool4App is subsequently generated and published for both platforms. All you need to do is create it only once.
Tool4App does not limit you by predefined set of languages. You can simply add any language and it’s translations in the administration.
Tool4App’s capabilities are still being developed and expanded. Please contact us via the contact form. We will discuss your request and either add it to Tool4App or we will offer you a tailored modification just for you.
To create an account, visit https://play.google.com/console/ and create your developer account.
Google Play Console Guide https://support.google.com/googleplay/android-developer/
If you do not have an Apple Developer Account, you need to create one at https://developer.apple.com/. You need to make sure that the account is set up for an organization, not an individual.
Detailed instructions for setting up https://developer.apple.com/support/app-account/#organization