Check the acquisition promise
Read the store headline, screenshots and description. What problem is the app promising to solve?
Study the storefront ↗Manfred Breede · iOS
Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.
01 / Creative research
Read the store headline, screenshots and description. What problem is the app promising to solve?
Study the storefront ↗Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.
Browse observed advertisers ↗Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.
Review the market context ↗02 / Storefront & product
Study the product story and store experience behind the acquisition funnel.
03 / Market context
Keep revenue, downloads and store rankings separate from advertising performance.
I don't know if the other reviewer is referring to an older version, but I downloaded this app and it represented twenty as a shell in the zero column and a dot in the twenty column as I would expect. This app appears to me to work as advertised. You can convert from the decimal system to mayan or from mayan to decimal. Maximum representable number appears to be 1279999999.
While the representations from 1 to 19 are correct, the symbol shown for twenty is actually their "zero." The conversions totally ignore the Mayans' use of place value. I would not recommend this to my students.
Both, the Maya numeral system and decimal numbers are positional or place-value notations. There are two major differences: 1. In the decimal system...