I have a samsung android s5. I organize educational teleconferences on marriage for married women. I am looking for a free simple offline financial app where I can track the accounts payable and accounts receivable. All the members are in my contacts. Is there a financial app out there that would integrate with the android phone contacts and/or dejaoffice? (Now I am using DejaExpense but it doesn't track the accts receivable, only the accts payable.)