I think it would be better if you rephrase it with something like this:
Developed an app to sound the text from image from phone gallery or camera using text recognition and text-to-speech API by collaborating with team of N people which lead us to be selected to the Top-5 list of the IoT Hackathon 2018
не отрицаю, что есть ошибки в английском, но суть, думаю, понятна