Web and mobile app development

I’m looking for a development company and not freelancers for developing the website and application for my audiobook library
The best proposals will be short listed and the project can be started from March 10th.

About my company:
We are are a company based out in Spain with a huge audio library and would like to have an online platform for the same.

The application will be our first presence in the global market and thus we need to have a best development company to collaborate with.
The development partners will be first shortlisted from the proposals and will be then contacted for telephonic discussion to finalised the agreement.

The scope:
We needs a functional website as well as android and IOS applications for our customers.

Here is the details of what we will be needing

- User Registration
- User Profile Creation
- Search function.
- Categories
- Showcase of audiobooks covers and free samples to listen to.
- Integration of audio player.
- Audiobook reproductor with full characteristics (including bookmarks and velocity changes)
- Audiobook demos
- Integration of online payment system. In-app purchases.
- Spanish and english languages.
- Connected to web server were all the data will be stored and ready to download to the app.
- Integration of web sales with app sales. Possibility to show web sales in app account and viceversa.
- Subscription
- Favourites
- Push Notifications
- Support
- Social Media Integration
- Creation of Front and Back End.
- Creation of Admin Panel
- Admin will have access to the complete portal and can edit all the details. Statistics