Mexican Lottery and its app version (Purepechapps)
The Mexican Lottery is one of the country's most beloved family games. Its gameplay is simple: a caller calls out illustrated cards—the mermaid, the brave one, the little devil—and each player marks the corresponding images on their board. The first player to complete a pattern (a line, four corners, a full board, etc.) wins, announcing it with the classic "Lotería!" More than a game of chance, it's a social ritual: it brings together generations, revives popular sayings, and a visual imagery that has been part of Mexican culture since the late 19th century.

The app version of Purepechapps seeks to bring this experience to phones and tablets. The most valuable aspect of such a digital adaptation is that it facilitates improvised games: you don't need to bring decks or chips; you can connect your phone to a speaker so everyone can hear the cards and adjust the shuffling rhythm. A well-designed lottery app usually includes reliable random shuffling, a card history to avoid confusion, recorded or customizable voices, and options to choose between game modes (line, tabla, etc.). It also helps to have tabla and deck styles, support for playing offline or online with friends, and a "screamer" mode to use your phone as a deck only if you're playing with physical tabla.

In terms of usability, a clear and festive interface, large buttons, a remaining card counter, and shortcuts to pause or repeat the called card are desirable. In terms of accessibility, the ability to vary the speed and volume, as well as having different voices or clear Spanish pronunciation so everyone can keep up, are very helpful. For meetings, the absence of intrusive ads, or at least an affordable option to remove them, greatly improves the experience.