Blogging about side projects and life https://www.kaioelfke.de/blog/ 2024-09-21T12:33:00+02:00 Kai Oelfke https://www.kaioelfke.de/assets/images/favicon-32-32.png https://www.kaioelfke.de/assets/images/apple-touch-icon.png https://www.kaioelfke.de/blog/tipkit-swiftui-2024/ 2024-09-21T12:33:00+02:00 2025-12-06T16:10:03+08:00 Kai Oelfke

<h2>The usecase</h2> <p>I make <a href="https://apps.apple.com/app/id6448909309">Fasty</a> an intermittent fasting app. The app is quite simple, with two tabs. The first one is for fasting and looks like this:</p> <p><img src="/blog/tipkit-swiftui-2024/fasty.png" alt="Fasty Fasting Tab Screenshot"></p> <p>One of the most common support requests I receive is that users want to edit the time when they started...</p>

https://www.kaioelfke.de/blog/swiftui-environment-updates-propagation-2023/ 2023-02-03T10:10:00+01:00 2025-12-06T16:10:03+08:00 Kai Oelfke

<h2>Background:</h2> <p>While working on a side project for <a href="https://apps.apple.com/app/expense-tracker-money-budget/id1668521095">tracking expenses</a>, I noticed an issue with location updates. The app determines the closest place e.g. a restaurant based on the current location. This is used to prefill the expense form. Nobody likes...</p>

https://www.kaioelfke.de/blog/march-2021/ 2021-04-05T11:46:00+02:00 2025-12-06T16:10:03+08:00 Kai Oelfke

<p>This is going to be more of a blog post behind the story of Amicu 3. But that’s what I worked on in March and will continue with in April.</p> <h2>Amicu</h2> <p><img src="/blog/march-2021/stats.png" title="Statistics for March 2021" alt="Statistics for March 2021"></p> <p>Like in February, I didn’t do much marketing. I’m focused on developing Amicu 3. Since December last...</p>

https://www.kaioelfke.de/blog/february-2021/ 2021-02-28T13:26:00+01:00 2025-12-06T16:10:03+08:00 Kai Oelfke

<h2>Amicu</h2> <p><img src="/blog/february-2021/stats.png" title="Statistics for February 2021" alt="Statistics for February 2021"></p> <p>I didn’t do much marketing and the numbers show that. Most downloads came from the App Store directly.</p> <h4>Two feature requests</h4> <p>Besides the usual bug fixing and performance improvements I worked on two new things. Both requested by customers...</p>

https://www.kaioelfke.de/blog/january-2021/ 2021-02-05T07:31:00+01:00 2025-12-06T16:10:03+08:00 Kai Oelfke

<h2>Amicu</h2> <p>January 2021 has been a record month for Amicu. I made almost as many sales in one month as I made in all of 2020 ($170).</p> <p><img src="/blog/january-2021/stats.png" title="Statistics for January 2021" alt="Statistics for January 2021"></p> <ul> <li>New subscribers: 5 (3 monthly, 2 yearly)</li> <li>Churned subscribers: 2</li> <li>Total subscribers: 15</li> <li>MRR: $ 48.49</li> </ul> <h4>What I worked...</h4>

https://www.kaioelfke.de/blog/2020/ 2021-02-05T07:18:00+01:00 2025-12-06T16:10:03+08:00 Kai Oelfke

<h2>Why do I do this?</h2> <p>I always enjoyed reading yearly reports of other people. This is the first attempt at making my own. And I try it as an alternative to social media updates. So this is for my future self and anyone, who wants to know what I’ve been...</p>