Show HN: I made a simple, open source, chromatic tuner mobile app https://ift.tt/hCn4z80

Show HN: I made a simple, open source, chromatic tuner mobile app I'm a musician by night, software developer by day, and one of the minor frustrations I've always had was trying to find a simple tuner app for my phone. Looking at both the iOS and Android app stores, you'll find a lot of the top tuner apps are rather bloated with ads or subscription callouts. I thought I'd create a dead-simple minimalistic chromatic tuner the way I would like it - open the app, and tune my guitar. I also wanted to delve a bit into mobile development, as my main focus is in web with NodeJS and React. I chose React Native since it was the easiest to understand coming from React. Flutter was also an option since the company I work for has a team working in that, but I thought it would be a bit too much effort to learn Dart. I learned a bit more about React rendering with this project as well. The main issue I had was trying to have a React state variable be constantly updated with any frequencies detected from the mic input, but that ended up causing substantial slowdown due to so many rerenders, so I opted to use a React ref to maintain any detections, and then only update the React state when there was an actual note. The apps you can find on the both the iOs App Store and Google Play (free!). https://ift.tt/sMAn2XK https://ift.tt/ChBP49v... Would love any feedback! https://ift.tt/yS4txXk December 31, 2022 at 12:51PM