WetRuler and TideView are apps that hav no data collection of any sort. The programs are open source and require no accounts or log ins and sell nothing. They have no connection needs to upload data to the internet or any other cloud service. Wetruler does not rely on data bases other than a few lines of code. Tideline connects to the internet to download tide tables from the NOAA website only--it uploads nothing. They sell no ads and I receive no money for their use or distribution. I have no interest in your use of them nor do I profit in anyway from them. These programs can be used by any age group and are suitable for everyone. Privacy statements are a requirement for any new app on the App store.