The search term "chataltcom" is a common misspelling. The official package name on Google Play is com.chatroullete.alternative .

of this paper, such as the safety mechanisms or the history of these apps? Chat Alternative — android app - Apps on Google Play

Mod developers usually entice users by unlocking paid features without a subscription:

While the unlocked features sound appealing, downloading a modified application from unverified third-party websites poses severe threats to your digital safety and privacy. 1. Malware and Spyware Infestation