On my most recent flights (not this year) I've gotten estimate ranges of wait time in security lines. But I don't have those bookmarks in my current browser. Do they still exist? I googled wait times and found indications that the calculators are disappearing. Is that true? I also hear that there are smartphone apps to estimate wait times. Were the wait times on websites getting so inaccurate they became useless?

[Disclaimer: I did the "search first thing" and the search in this website is nearly useless. I got tons of hits with not one having "wait time" in the subject heading]