So I don't actually have a server behind the app at all, no account is needed besides your default iCloud account using apples core data to persist data offline on your device (you don't need to provide credentials as everything is managed by Apple and never goes to me.). I don't collect any crash data at all. I also won't be tracking anything in the app itself.

I'm going to add a section above the privacy policy with a bit of this info whilst I work on writing a better one.

I may build a web version in the future, however it will be opt in only if you have signed up via an iCloud method. I believe it is actually possible to use iCloud on the web, as apple do have a Javascript API, however I have not looked into this in detail.