I've used Mint for about 13 years now and currently tracks about 20 accounts. We are almost exclusively on CC too. Not sure if it will do exactly what you want for cash flow projection, but the Budget feature shows you what is left over based on current spend and the income/expenditure budgets you define.
andrew_the_geek t1_j6o3shs wrote
Reply to Software suggestions for someone who puts most things on CC by Ok_Masterpiece_4305
I've used Mint for about 13 years now and currently tracks about 20 accounts. We are almost exclusively on CC too. Not sure if it will do exactly what you want for cash flow projection, but the Budget feature shows you what is left over based on current spend and the income/expenditure budgets you define.