Long car journeys. Planes. A grandparent’s house with two bars. School holidays in a cottage with no signal.
Font Quest and Math Critters are desktop apps, not websites. They install on a Mac or a PC and run with the internet completely off. No account to sign into, no cloud sync to wait for, no “you’re offline” screen. The save file lives on the computer.
One honest caveat: Font Quest bundles about 50 fonts that work with no internet at all. The full 1,900-font catalogue loads from Google Fonts the first time each font appears, and your computer caches it from then on. Game progress, scores and stories are fully offline either way.