Hot Knife Simulator is a free Android app developed by Martyn Apps in the Lifestyle category. The app allows you to emulate cutting with a hot knife to over 1000 degrees. The experiment can be done on various objects like an apple or a mobile phone.

The app comes with a knife, torch, apple, mobile, and paper bin to help you emulate the experiment. The app is compatible with Android 9.0 and can be easily downloaded from the Google Play Store. The developer promises to add more objects to cut with the hot knife in the near future.

Overall, Hot Knife Simulator is an interesting app for those who want to experience the thrill of cutting objects with a hot knife without risking any harm.