Original Summary

I have tinnitus. Every app I tried was a folder of white-noise MP3s with a timer, and none of them cared that my ringing has a specific pitch. So I built one that does. Today I shipped 2.0.0, a full redesign, so it felt like a good moment to share the numbers. How it works - sylence.app has a pitch test that runs in the browser: one sine oscillator and a slider. You move the tone until it sits on your ringing. Nothing is uploaded; the page's CSP is connect-src 'none', so it can't phone home even if I wanted it to. Then it plays noise with a notch cut at your pitch, next to the same noise without it. - The Android app (Flutter) takes that number and builds every sound on the device with a notch at your pitch (two cascaded RBJ biquads): noise colours synthesised in Dart, plus 31 real recordings (rain, fan, ocean, city, piano...) that get notched in a background isolate and layered, up to five at once. No account. Your pitch and diary stay on the phone. The only network calls are Play billing (RevenueCat, which also carries a few anonymous progress markers, each named in the privacy policy) and a promo-code check if you type one. - The player never takes audio focus, so it sits under YouTube, podcasts and calls instead of pausing them. The numbers, six weeks in - ~330 installs; 239 still have it. - 1 sale: Lifetime, from someone who used the free version for 13 days first. No subscriptions yet. - About two thirds of all installs came on three days, when Facebook reels I posted by hand took off (the biggest reached 57k views). The same kind of clips posted on a schedule through the API got 0 to 5 views each. - 57% of people who open the Play listing install. Search sends almost nobody: I'm not in the top 30 for any tinnitus keyword, and with no public rating yet I don't expect to be. What I'd do differently - Ship the browser test first. It needs nothing, so it's what people actually try, and the app converts better behind it. - The name. "Sylence" sounds exactly like "silence", so people who hear it in a video search the wrong word. I now spell it on screen every time. - Post by hand. Everything scheduled was close to invisible; the hand-posted reels carried the whole launch. Honest bit: the evidence on notched sound is mixed. A 2010 study looked promising, the larger 2016 trial missed its main outcomes, and a 2018 Cochrane review couldn't show sound therapy in general beats a placebo. The site lays all of it out. It's masking and relief, not a treatment. Masking is free (noise plus one of rain, fan or ocean) and your first listen includes the notch; after that the notch is Pro, with a 7-day free trial on the yearly plan. Two questions for people who've been here: how did you get your first real search traffic on Play, and how did you get your first ratings without nagging people? Happy to go into the DSP or the Flutter audio side too. Site: https://sylence.app

  • 情报分类：技术学习与提效
  • 分类依据：内容涉及技术、AI、软件工具或工程实践
  • 信息来源：Reddit · SideProject
  • 发布时间：2026/10/15 23:41:06