Way back when the browser used zero for the salt level IF no entry was entered. As we both know, this isn’t realistic as all chlorine adds salt. When the App was created we updated that default to 1000ppm IF no result was entered on both the app and the browser. The kicker here though is there’s a large chance you havent updated your webpage and the cookies over the year....why would you??? If you refreshes the page (hit F5) it’ll update the default to 1000ppm for salt.
As long as the salt level matches the results will be the same as the code is the same behind the scenes.