Standards-aligned math, reading, and science for ages 5–10 — disguised as the games your kid actually wants to play. Built by teachers. Trusted by parents. Never boring.
Learning apps promise the world and deliver flashcards. We built the one we wished existed.
“I don’t want to!” Every evening turns into a standoff. Even 10 minutes feels like negotiation.
You hand them a tablet to get through dinner prep. Nothing on it is actually helping them learn.
Cartoons, points, confetti — zero substance. Kids bounce off. You cancel another subscription.
Sign up in 60 seconds. Nucleus calibrates to your child’s grade and confidence level on day one.
15-minute adventures with drag, tap, build, and solve. Every interaction is a standards-aligned skill in disguise.
Weekly parent reports show exactly what your kid mastered — and where they’re ready to push further.
Every game maps to Common Core and TEKS learning goals — but your child experiences it as dragging, tapping, sorting, and building. Rigor stays high; cognitive load stays low.
Kids show their work by building it. You can see exactly how they solved each problem — not just whether they got it right.
Nucleus notices when your kid is coasting or struggling and adjusts difficulty mid-session. No two sessions look the same.
From odd-and-even to fractions, phonics to comprehension, forces to ecosystems. One subscription, all three subjects.
Every Sunday you get a one-page summary: skills mastered, moments of effort, and exactly what to celebrate.
Every decision on this platform is made with one question: would we give this to our own kids? If the answer is no, it doesn’t ship. Ever.
“My son used to cry when it was homework time. Now he literally asks to play math before dinner. Whatever magic this is, we’re keeping it.”
“Kids actually retain what they learn here. That’s more than I can say for most apps we’ve tried.”
“Her teacher noticed the improvement before I mentioned anything. That’s the whole review.”
No credit card to start. Cancel any time in one click.
Nucleus is built for ages 5–10 (kindergarten through 5th grade). We place each child based on a short, low-pressure calibration — so a struggling 8-year-old and a confident 6-year-old both start at the right level.
Khan Kids is a free video library; Prodigy is a single-subject RPG; ABCmouse is heavy on cartoons. Nucleus sits in the middle: short hands-on game sessions that cover math, reading, and science, with clear progression and a parent dashboard that actually says something.
15 minutes is the sweet spot. Nucleus is designed to end a session when your child is still having fun — not when they’re drained. There are no streaks, no guilt, and no popups nagging them to come back.
Yes. Zero ads, zero in-app purchases directed at kids, zero upsells inside the learning experience. Billing happens on your device, with your account, and your child never sees it.
Nucleus is COPPA-compliant. We collect the minimum needed to personalize learning, we never sell your child’s data, and parents can export or delete everything with one click. Full privacy policy available before signup.
iPad, iPhone, Android tablets and phones, and any modern browser (Chrome, Safari, Edge). Progress syncs across devices automatically.
Cancel in one click, no questions. The Family plan includes a 30-day money-back guarantee — if Nucleus isn’t a fit, we refund you.
10 math games you can play at the dinner table tonight — no screen, no prep, 5 minutes each. Written by elementary teachers.
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