Maybe. I run a word game (https://squareword.org https://squareword.org) that uses localstorage to store stats. This allows me to give users statistics without

Maybe. I run a word game (https://squareword.org https://squareword.org) that uses localstorage to store stats. This allows me to give users statistics without requiring any sort of account or signup. Even so, I often hear from people that have their stats cleared, for example by iOS evicting localstorage after 7 days of not visiting a site.