Quick Tools Collection app for iPhone and iPad

Four Quick Tools in one apps, Quickest way to get result from percentage calculation, Fastest and easiest way to calculate date in month/week/days, simple yet useful counting apps and easiest way to find differences between two dates. Real-time changes on any input with immediate results.
Quick Percentage - Get all possible result from percentage calculation - the percentage amount, the discounted amount and the mark-up amount.
Quick Day - date calculation has never been this easy. Calculate by month, week or days, you can even calculate backward.
Quick Count - easy to use counting apps.
Quick Date - easiest way to find differences between two dates.