‘Tis the season for stuff like tricks-or-treats, jack-o-lanterns, and scary ghosts. If you’re looking to up your Halloween game and fun – or if you seriously suspect paranormal activity – PC Mike Wendland has three apps those daring enough may want to consider. The Ghost Hunting Tools app offers numerous spirit-hunting features that supposedly make use of the sensors in your smartphone or tablet. It claims to measure technical variables like electromagnetic fields and electronic phenomena – grunts, words, or even simple sentences allegedly spoken by spirits. The app is free for iOS and Android. Ghost Hunter M2 was developed by professional engineers who say it’s the most advanced paranormal…