Tabi Calc

I purchased Tabi Calc for date calculations before the developer switched to a subscription model. Those features (that I already paid for) are now locked behind a subscription. Restoring the purchase does nothing. Fortunately, every feature this app offers is available in the iOS calculator or from Google for free.

I'm bad at doing date and time calculations. They are cumbersome and tedious. I use an Excel spreadsheet to make the calculations much easier. Then I discovered "Time Calc: durations and dates". It is GREAT! This app is much easier to use than the spreadsheet, and can do much more. It has a pretty short learning curve. Great for: - Calculating the number of days between two dates. Or the number of hours, minutes, seconds, etc. - Adding up total minutes and seconds of MP3 tracks to fit on a CD. - Converting one time measure to another: X hours = how many days, weeks, minutes, seconds, hours by pressing just one key. Nice GUI, very handy, highly recommended.