I will develop a custom mobile app for android and ios

Yes, we are happy to sign NDA. We fully understand the importance of our client's data privacy and security.

Application developed for a specific platform is a native application while a hybrid application has the same application for both the platform

We will suggest you go for the hybrid app. As there is one application for both the iOS and Android platforms so instead of making changes in each native app separately, you will just need to make changes in a single hybrid app which will save time and cost.

Source code is the master file of the application which you will need to make future amendments.

Yes, absolutely. We take great pride in taking care of all of our customer's needs and always look forward to building a long-term business relationship.