PurrPad, I taught my MacBook trackpad to purr. It has since started ignoring me

Rest your hand on the trackpad and it purrs. Not audio through the speakers, the actual haptic engine, so you feel it under your palm. The first time it worked I sat there grinning at a laptop like an idiot. Then I gave it a personality and now I live with it. Problem Every "cat purr" thing I could find is a sound file. You put on headphones and listen to a recording of a cat, which is fine, except it occupies your ears, it loops, and after about ninety seconds your brain notices the loop and the spell breaks. Meanwhile the thing people actually like about a cat on their desk is the weight and the vibration, not the audio. PurrPad puts the purr in the MacBook trackpad instead, so it is something you feel while you work, with your ears free. It doesn't always purr. Sometimes you rest your hand and it just... considers you, and declines. Then it sulks. If you click on it during the sulk, it sulks harder, and the app quietly tells you the sulk is now personal. At maximum annoyance it scratches you, which is to say the little paw icon draws its claws and the copy says "Claws were optional. Were." Full Cat personality 😻 Comparison Purrli (purrli.com) is the best-known purr generator and it is genuinely good, but it is audio: it uses your speakers or headphones, and it is a continuous sound rather than something you touch. PurrPad is haptic, so it costs you no audio channel and works in a quiet office with headphones off. Mine has moods. It sometimes declines to purr and then sulks, it gets the zoomies about once a fortnight, it brings me a dead mouse now and again, and it goes silent the instant your mic or camera turns on so it has never purred through a meeting. Pricing Free: one cat and all the behaviour, forever. No trial, no timer. $4.99 one time unlocks the other five cats, the tuning controls, and recording your own cat so the trackpad purrs like her specifically. No subscription. https://purrpad.app About me About me I am Francesco, an independent developer in Italy. Who I am, how the app is funded, and how to reach me: https://purrpad.app/about (full name, LinkedIn, contact, and links to the privacy policy, terms and refund policy). Contact is hello@purrpad.app and I answer it myself. Linked it https://www.linkedin.com/in/francesco-pavanetto/ The app is signed and notarised, so no Gatekeeper warnings. It cannot go on the Mac App Store because driving the haptic engine needs a private framework, which is why I am posting here rather than linking an App Store page. There is no demo video and there cannot be one, since a video of this app is a hand resting on a trackpad for thirty seconds. The site draws the actual pulse train instead and you can press and hold it to hear roughly what your palm gets. Genuinely want to know: does it feel like a cat, or like a phone on a table? That has been the open question since day one and I still cannot answer it about my own app.