Sushi Monster is a free app from Scholastic: drag numbered sushi plates onto a target so they add up or multiply correctly, across 12 fixed levels aimed at ages 9–11. It's a small, single-mechanic app with no cost and no account. Math Games is built for adults who've outgrown that: four games, a clock, and four difficulty tiers instead of twelve fixed levels.
| Mathe-Spiele | Sushi Monster | |
|---|---|---|
| Total amount of content, ever | Four games, each replayable indefinitely | 12 levels — 7 addition, 5 multiplication — and that's the app |
| How you answer a question | Type the number | Drag a sushi plate onto the monster |
| Cost, including ads | Free, with one optional ad for an extra hint | Free, with no ads or purchases anywhere |
| What happens after level 12 | Doesn't apply — there's no ceiling | Nothing — there's no level 13 |
| Built-in sense of pace | A clock on almost every mode | None — untimed, matching at your own speed |
Feature comparison as of this page's last update — Sushi Monster's exact features and free-tier limits change between versions, so check their current listing too.
No subscription. No paywalled game mode.
Sushi Monster is a genuinely free Scholastic app with no subscription, no in-app purchases, and — unlike Math Games — no ads at all.
Sushi Monster has exactly 12 levels — 7 for addition, 5 for multiplication — and that's the entire app, by design. There's no update schedule to watch for, no difficulty to unlock past level 12, nothing more to buy or wait for. For a young child just learning to add and multiply, a fixed, small, finishable app is arguably a feature, not a limitation.
Math Games is the opposite kind of thing on purpose: four games that stay useful indefinitely, because getting faster at mental math doesn't have a level 13 where you're "done" — there's always a harder tier or a faster time to chase.
Worth saying plainly: Sushi Monster carries no ads and no purchases anywhere in the app. Math Games is free to play in full, but does show a short optional ad if you want an extra hint or life — not required to play, but a real difference worth knowing about if that matters to you.
What you get for that is everything Sushi Monster doesn't have: a clock on the games, four scaling difficulty tiers instead of a fixed 12 levels, and stats that track your own speed and accuracy over time rather than stopping once you finish the app.