Fair point, this is the beginnings of a basic hit counter that I'm working on. As there's no server (it's CDN hosted on Netlify), there's no way to see if anyone's even using the site. It's waaaaay less intrusive that GA, or other tracking tools. It's simply picking up page views - ignoring IP and any identifiable information (cookies obvs. included). It also respects do not tracking indicators in your browser. Tiny Tracking will be open sourced in time.
There's no sync (at this point) and no account creation by design. It's all stored in your browser - I suppose in that regard it is not 'online'!
Sync may well be coming, but I'm not yet certain how to do it securely. That being said, import & export is available now, so it can be manually sync'd.
Thanks! As far as I'm aware, you can't manually trigger the 'add to homescreen' prompt as it's a system-level interaction. Android Chrome & Firefox should trigger it, but if not it's under the default browser settings dropdown on Android, and under 'share' (I think) for IOS.