Hi there, I am pretty sure that there are too many factors to take into account that you need some professional point of view. I would definitely recommend MarTech www.techmagic.co/martech You see, they will design the interface, develop both the back-end and front-end of the app, integrate required services, and enhance the app afterwards. I like this team of experts and got great products as a result. Simply give them a try
It's quite hard to justify this question. The majority of the business target to get engaged with best mobile app development company. But the fact is that you should engage with the company that develops an app satisfying all your business requirement at quite a competitive cost. However, with the increasing demand of mobile apps, more app development companies are emerging in the market. In such scenario, it is too hard to decide which is the best mobile app development companies and which is below average.