I made a free app to calibrate your turntable by simply playing a song
Hey there! I made a little app that lets you to calibrate your turntable by putting on any record and tapping a button. It's called Grooved and it uses your phone's microphone to see how fast your platter is going, almost like magic. You can see what it looks like in action here: https://twitter.com/OKatBest/status/1795453042994680148 The app itself is free without ads, subscriptions, or trackers. It's a tool I built for myself, and I just thought someone else might want to use it too. I have never seen this technology being used before, all other apps require you to…
I made a free app to calibrate your turntable by simply playing a song launched on May 28, 2024 with 452 votes, #69 of 4,539 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
Grooved is a free app that calibrates turntables by analyzing audio through a phone's microphone while a record plays. Users simply tap a button to measure platter speed without printing materials or placing their device on the turntable. Built for vinyl enthusiasts, the app contains no ads, subscriptions, or trackers and is available on iOS with an Android version in development.
written from the facts on this page · September 2026
From the sources
Free, no ads.
Do you ever think that copywriting has become too self-aware for its own good? It's like we collectively decided to drop the corporate facade of prestige in favor of the "wink wink we're fun too!" brand of language. From websites to ads to the back of shipping trucks, it feels like every company's identity has become a collection of short statements vaguely related to their industry, in pun form, devoid of any actual attempt at humor. It's akin to a child trying to formulate a joke: clearly understanding the structure and the components of comedy, yet missing what makes it funny. I'm not saying this is necessarily a good or a bad thing, it's just something that I have noticed. It makes…from grooved.okat.best
In the maker’s words, at launch
Hey there! I made a little app that lets you to calibrate your turntable by putting on any record and tapping a button. It's called Grooved and it uses your phone's microphone to see how fast your platter is going, almost like magic. You can see what it looks like in action here…
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Hello HN, Over the last 15 months, two friends and I developed the music recording app we felt we wanted based on our own needs as musicians. It's called Tape It [1] and has just recently hit the Apple App Store [2]. We put a lot of effort into a good UX to help musicians really focus on playing their instrument instead of pretending to be a recording engineer. The app records in stereo on newer iPhones (although that's a premium feature; the free version only records in standard mono audio quality). I would be really grateful for advice from this community on how to best approach marketing.…
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Source: Show HN post ↗ · launch text quoted in part
