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The questions that come to mind for me:

1. How long after releasing the iOS app did you start on an Android version?

2. Are you using some kind of cross-platform framework, or are the apps mostly “mobile-friendly web views”?

3. How much code is shared between the three architectures?

4. How much of the app functionality is “server based” instead of “on device”?

Good questions. - The Android version came about two years after the iOS app. iOS was always my primary focus and the main success driver. - Both apps are 100% native. No cross-platform framework and no web views. It may sound more complex, but for me it was actually simpler and more controllable that way. - There is very little shared code between platforms. Concepts and ideas are shared, but the implementations are platform-specific. - The core app functionality is almost entirely on-device. MoneyControl works locally by design. There is an optional WebApp that adds device sync and a browser-based interface, but the server side is essentially limited to synchronization.

In short: native apps, local-first architecture, with sync as an optional layer rather than a requirement.

Wow, that is so rare these days (and not the answers I expected)! A tip of the proverbial hat to you for doing things "the right way".

(And thanks for the reply!)

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