Explore
Tap or drag a rectangle. Adjust columns and rows, swap their direction, and see multiplication as repeated addition.
An Android multiplication adventure
See the numbers. Build the answer.
RuneGrid turns multiplication into rectangles of luminous rune tiles. Explore at your own pace, find every factor pair in Trials, practice with three hearts in Sprint, or keep the pile from filling in Rune Stack.
Works offline · English and Finnish · Factors from 1 to 10
Rune Trials
Find all ordered factor pairs for a target. Both 2 × 3 and 3 × 2 count: the direction changes, but the product stays the same.
Rune Sprint
Match achievable targets, earn 100 points for correct answers, and keep your three hearts. Missed products return for review.
Rune Stack
Answer a multiplication and keep a 100-space pile from filling. Each unit of error adds a block: for 5 × 5, 24 or 26 adds one; 50 adds 25. Correct answers add nothing.
A comfortable place to practice
Choose factors from 1–3, 1–5, or the full 1–10 board. A short tutorial explains the rules. Reduced motion and high contrast help you tailor the experience.
Your exercise saves locally so you can resume later. Best Sprint score, correct-answer count, and solved products remain when you start a new game.
Inside RuneGrid
Keep the pile from filling
Rune Stack reveals the correct product after each answer, then lets you move to the next multiplication. The blocks fill from the bottom; a full grid ends the run. Your pile saves locally for later.
Privacy and availability
RuneGrid has no ads, analytics, account, or app-operated data upload. Game progress and settings are stored in the app. Android system backup may preserve that data according to your device settings.
Read the privacy information · Browse Android development builds
RuneGrid is in development. Store availability will be announced here. Project hosting may move to LabbasLabs.eu or LabbasLabs.de in the future.
Suomenkieliset kuvat
Valitse suomi tai englanti ensimmäisellä käynnistyksellä. Kielivalinta muistetaan, ja sen voi vaihtaa myöhemmin oikean yläkulman Asetuksista.
