Correct, if the Monero Community could help us build the required libraries and indexer we are willing to do all the rest for free. In this case the libraries and the indexer will be open-source so that all other wallet providers and services can use them which will help raise Monero's popularity.
If this fails, Coinomi could raise some funds and build this. Again, the libraries will be open-source.
If all the above fails, Coinomi can still add a Monero wallet with no help from others but in this case we will have to keep the code closed for an unspecified period of time since we will be using own funds as an edge over our rivals.