Vaava - it is a baby tracker / logging app. It was originally built mainly for my own use, but it is now available in both app stores. It has the same basic features that you could imagine. You can save built-in events feeding, sleep, diapers. You can also create custom events for any events you like. It has reminders, a week view, trends visualization, a 'my day' builder to help you think about the baby routines.

The market for baby logging apps is already quite niche, but there is some aspects that make Vaava focus on a niche inside that niche.

Core differentiators from established offering in this area for unique user experience: - Uncompromising data privacy; the tech choices and architecture was done from the start to support this. There is 0 user generated data collected to centralised servers - 0 behavioural analytics, even the anonymous technical app crash analytics are completely optional - No user account needed, no giving your email, no subscriptions - AI applied in a smart/limited way; you can use your voice to dictate your routines with your baby, you can use image scanning to automatically 'digitize' your baby growth measurements (tested to work with Finnish child age health card 'lapsuusiän terveyskortti') and visualize the trends digitally. It also has a chatgpt integration where you can prompt chatgpt with your baby routine (sleep, feeding times so on) and ask for tips. I am not necessarily encouraging you to use AI for helping with your baby routine, but if you do, might as well do it with good context

What I gain while providing this unique value: - 0 headaches of maintaining 'cloud infra' - 0 headaches of the usual data handling issues (gpdr so on) - Close to 0 opex -> I can keep the price to customer very competitive, and my own margin high - Clear conscience from knowing there is 0 data hoarding

Now of course when you stick to your values there is some tradeoffs: - Behavioural analytics would be nice to actually know how users use the app for legitimate development reasons - For user experience a centralised cloud server would be a convenience; you could sync your data anywhere, now you can do it only inside your WIFI - Idea of constantly recurring revenue from a subscription gives of course much more flexibility on the cost structure and future development

In short it brings a classic iteration of modern freemium software; 90% features are free, you do a single in app purchase to unlock the rest for a lifetime (the price is close to some of the comparable services 1 month subscription price). There is 0% focus on data hoarding, 100% focus on user experience.