If you have purchased via web app, visit https://triviamaker.com/account page and you can see an option to cancel your existing subscription.
Android app: If you have subscribed to TriviaMaker using the Android application, you can cancel your subscription by following the steps as mentioned in https://support.google.com/googleplay/answer/7018481?co=GENIE.Platform%3DAndroid&hl=en
iOS App: If you have subscribed to TriviaMaker using the iOS application, you can cancel your subscription by following the steps as mentioned in https://support.apple.com/en-us/HT202039
To cancel your enterprise subscription, kindly follow the instructions outlined at – https://triviamaker.com/faq/#qa_3505. If you require further assistance, you may contact support at support@triviamaker.com.