Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Ratio Calculator Tool 螢幕截圖

iPad

iPhone

About Ratio Calculator Tool

Ratio Calculator Tool is not a calculator as we know it. It is designed only for calculating proportions.

It simply gets you the value of [?] in this equation:
"If X Foo equals to Y bla, then Z Foo equals to [?] bla"

It works for 2 ways of proportions: Direct and inverse.

For example when you make a calculation about prices, the result usually increases like this:
If 2 apples cost 10 bucks, 5 apples cost how many bucks?
The app finds 25 bucks here (which is greater than 10).

But when you make a calculation for ex. about speed, the result decreases like this:
If 3 workers finish the job in 15 days, 9 workers will finish in how many days?
The app finds 5 days here (which is less than 15).

Simple, but useful.