Hi HN! A number of years ago, a side project of mine (<a href="https://nathanfriend.io/inspirograph/" rel="nofollow">https://nathanfriend.io/inspirograph/</a>) hit the front page: <a href="https://news.ycombinator.com/item?id=8698131" rel="nofollow">https://news.ycombinator.com/item?id=8698131</a>, <a href="https://news.ycombinator.com/item?id=13256222" rel="nofollow">https://news.ycombinator.com/item?id=13256222</a><p>Today I'm releasing the mobile app version for both iOS and Android.<p>It's built with Flutter, and in-app payments are processed by RevenueCat. Source code is available at <a href="https://gitlab.com/nfriend/inspiral" rel="nofollow">https://gitlab.com/nfriend/inspiral</a>.<p>Let me know what you think! Feel free to open GitLab issues or email me at inspiral@nathanfriend.io.