Storm of brain training for Qibo youngster is coming! Dangerous mountains, full of mazes, extremely challenge for your courage, observation and imagination, get ready to set off, hurry up to meet the challenges.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.
