Hi everyone, Let me introduce **Your Stressy**, an app with a flawless UI/UX (Swift, Liquid Glass and more), crazy haptics, and 120 Hz ProMotion optimization (CADisableMinimumFrameDurationOnPhone API), made for iPhone and Apple Watch. What it does Using your Apple Watch's sleep tracking, it gives you battery-like feedback on your health stats through the day: one number, your reserve, from 0 to 100%. On top of that you get readiness for training and bedtime coaching, with great charts for your reserve and stress. There are widgets for iPhone and Apple Watch in several variants, so it's all customizable to your preference. How it calculates The whole calculation algorithm is custom made. The data comes from Apple Health: sleep, HR, RHR, HRV and other parameters go into the formula that calculates your stress, battery and readiness. Everything is calculated on your iPhone and Apple Watch, and your health data never leaves them. Price A fixed price of $4.99. I personally don't like in-app subscriptions, and I think a one-time payment is the fairest option, so Stressy will never have a subscription. A lot more features are coming, and some are already in the pipeline. Free codes To start, 20 free promo codes for r/SideProject are in the first comment, so you can download the app completely free. Redeeming takes 30 seconds; the steps are there too. Just few taps. A bit of history, and how it was made A year ago, after 11+ years as a software engineer, I decided to slowly start learning Swift, these days it's so much easier to learn any programming language with the help of Claude, the syntax which used to cost a lot of time, is now almost instant. I always wanted to build native app experiences, as mainly a frontend engineer person, we know that Flutter and similar frameworks can never get you to a 100% native experience. As of the design, it was few wireframes coming from my end as well few other apps with nice details, merged into one, did it partially as a frontend component and slowly rewrote it into SwiftUI + with the help of Claude regarding the syntax. If you have any feedback, positive or negative criticism, anything, I'm all ears. Thanks! App Store: https://apps.apple.com/app/your-stressy/id6822681002 Official landing page: https://stressy.ervo.rocks/   submitted by   /u/ervomk [link]   [comments]