The Categories filter (Creator Filter section, available for Instagram, TikTok and YouTube) lets you pick from 26 topic categories such as Fashion & Style, Fitness & Wellness, Food & Drink, Travel, Gaming or Family. influData assigns categories to each profile automatically, with a probability score for how strongly the account fits the topic.
The slider next to a selected category sets the minimum matching probability (default around 60–70%). Raising it narrows the search to creators who clearly belong to the category; lowering it also catches borderline profiles. If you select several categories, creators must match all of them (AND), so combining categories makes the search more specific, not broader. The category filter works best together with keywords: start with a category, then refine with keyword and audience filters.