Notable apps and app updates for Aug. 15, 2017

On a regular basis, Apple World Today posts a list of notable new apps or app updates that have been released. They may not necessarily be new, but they're popular and deserve mention. Here are today's picks.

iOS Apps/Updates

Suparerg Suksai has introduced Math: Unknown 1.0., a step-by-step math calculation game. The $4.99 app is designed to teach users how to calculate in the correct order rather than just asking only the final calculated results. Math: Unknown consists of four basic arithmetic operations which are addition, subtraction, multiplication and division.

Visitors to Dublin, Ireland can gain access to more than 25 of the city's most popular attractions directly via their smartphones with the newly launched app and mobile version of the popular Dublin Pass sightseeing card. It contains a wealth of information on the city, including details on featured attractions, exploring by area, themed ideas for days out, transport services and maps.