Install Just Percent on your phone (and laptop)
Just Percent is a website that behaves like an app — so instead of an app store there is one short ritual per device. Pick yours below; each takes under a minute.
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1iPhone and iPad (Safari)
Open justpercent.com in Safari and tap the Share button — the square with the arrow. Scroll the list, choose “Add to Home Screen”, then “Add”. The icon lands next to your other apps and opens full screen, with no browser bars.
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2Android (Chrome)
Open justpercent.com in Chrome and tap the ⋮ menu in the corner. Choose “Install app” (on some phones: “Add to Home screen”) and confirm. From then on Android treats it like any installed app.
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3Laptop and desktop (Chrome or Edge)
Open justpercent.com and look at the right end of the address bar — there is a small install icon, a screen with a downward arrow. Click it, confirm, and the calculators get their own window and dock icon.
What installing changes
A full-screen app with its own icon that works offline after the first visit and updates itself — and nothing else. It is still the same free website: no store, no account, and removing it works like removing any other app.
Open Just Percent — it’s free