SimplePoo is focused on bowel tracking first
Cara Care can be useful if you want a broader digestive-health diary for IBS, IBD, food, and low FODMAP tracking. But if your main goal is to track bowel movements consistently, that broader scope can feel heavier than necessary.
SimplePoo is designed around quick bowel movement logging first. You can add notes when needed, use Quick Notes for repeated patterns, and keep the daily workflow lightweight.