On review aggregator Rotten Tomatoes, the series holds an approval rating of 98% based on 82 reviews, with an average rating of 8.6/10. The website's critical consensus reads, "Heartbreaking and powerful, Unbelievable transcends familiar true-crime beats by shifting its gaze to survivors of abuse, telling their stories with grace and gravity."[19] On Metacritic, it has a weighted average score of 83 out of 100, based on 25 critics, indicating "universal acclaim".[20]