I have been paying my bills by computer since the early 80s. The key feature I wanted was check printing. These days I only write about 3 or 4 checks a month. For the past few years I have been using Banktivity but they have gone to a subscription model so I expect soon my copy will no longer run. I use it mostly for cash flow planning. Mac based so I would have to gin up something in Numbers to track expenses. Not looking forward to getting Numbers to print checks. Are you aware of any open source budget app that might give me a head start? If Apple ever gets around to running iOS apps on my MBP I would certainly consider your utility.