Educational apps that grow with your child
Window Box Studios builds educational apps for children in grades K through 3. Every app is aligned to Common Core standards and designed to look and feel like the marble composition notebooks kids already know from school.
Our apps are simple, focused, and built by a parent who wanted better practice tools for his own child. No distracting mini-games, no complicated menus — just the right problems at the right level.
Every problem and activity maps directly to Common Core grade-level standards. This isn't random content — it's what your child's teacher is covering in class.
No clutter, no ads interrupting practice, no characters begging for attention. Just a clean notebook and focused practice.
Free to download with an optional upgrade to remove ads. No accounts, no data collection, no tracking. Your child's practice stays on their device.
A growing suite of focused practice apps, all sharing the same familiar marble notebook design.
Common Core math practice for grades K–3
COMING SOONDolch & Fry word practice by grade
COMING SOONGuided print & cursive practice
IN DEVELOPMENTGrade-level word practice
IN DEVELOPMENTGeometry basics for K–2
IN DEVELOPMENTClocks & telling time
IN DEVELOPMENTCoins & counting practice
IN DEVELOPMENTVisual fraction practice
IN DEVELOPMENTLetter sounds & blending
IN DEVELOPMENTComprehension by level
IN DEVELOPMENTWe're a small studio and we care about getting things right. If you have questions, feedback, or need help with any of our apps, we'd love to hear from you.
Email: [email protected]
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Window Box Studios LLC is based in Brooklyn, New York.