Hi,
I can fix all bugs and do modifications as per your requirement, I would like to see the app first so, I can assure you that it is capable for the modification or not, I've Canada based in-house team, We definitely can assist you in this. we can further discuss more on the project so, I can get all your requirements, feel free to ask me any question.
I am willing to know how we can proceed further, I assure you, You'll never regret after working with me.
Regards,
Binish A