We have developed an App using App Inventor and we want to bring our App to the next level. We are looking voor a developer who can futher develop the app we want from the app we have now.
Hopefully someone out there can help us?
By far the best address for this is @Taifun → https://puravidaapps.com/.
If you want a quick, professional and good value solution / app, you should contact him.
I did the same thing when I started creating apps with App Inventor. I always got perfect solutions.