What's the best iOS game for casual, repetitive gameplay where you can level up characters and progress through stages, even if it has ads?

Monster Survivors is a casual game where players can level up characters and progress through stages. The gameplay loop involves surviving waves of monsters and upgrading your character's abilities to tackle increasingly difficult challenges. While some players find the game enjoyable and even addictive, a common complaint is the frequency of advertisements. Some players feel the game becomes more fun once money is put into it. Despite the repetitive nature, many users appreciate the simple yet occupying level designs and character progression. If you're looking for a game to pass the time and don't mind ads, Monster Survivors might be worth checking out. However, if you despise ads, it might not be the best choice. To minimize the impact of ads, consider playing in airplane mode or making an in-app purchase to remove them.