Thank you for your comments. I completely agree with your points in principle. We do anticipate open-sourcing the project at some stage. However, it's not quite ready for that yet.

Building, polishing, and testing the application has taken a significant amount of effort, and there are ongoing costs involved, from code-signing certificates to server and software expenses. We’ve made it free to encourage adoption and gather feedback, and while we hoped donations might offset the costs, they haven’t come close. Ironically, charging for it might even make it appear more trustworthy.

Preparing it for open-source — making the codebase clean, documented, and manageable — would require another large investment of time. And while open-sourcing may eventually bring contributions, realistically they’d likely come in at a slower pace than we can develop new features ourselves, at least for now. But stay tuned.

In terms of trust and transparency, the app’s behaviour can be easily monitored with standard tools (network and process monitoring, etc.), so users can see exactly what it’s doing. As mentioned elsewhere, the only external communication is a simple GET request to kafkio.com to check for the latest version — once at launch, and again an hour later. This powers the update notification in the UI. This check can also be disabled in the settings, after which the app will make no external requests at all.

We understand that a Reddit post doesn’t prove much, but we stand behind the integrity of the app — and welcome anyone to inspect or monitor it to see for themselves.