Tinker Roll: Kids STEM Puzzles

Drag a ramp, tap Play, and watch Rollie roll. 48 hands-on physics puzzles for ages 3-7. No reading, no ads, no timers. Worlds 1 and 2 are free.

Rollie is a round little robot who only knows how to roll. Your child builds the path.

Every puzzle starts the same way: a spout at the top, a friend's basket somewhere below, and a tray of toy pieces. Drag a ramp onto a dotted spot. Tap the big Play button. Rollie drops, rolls, bounces, and either lands in the basket or tumbles off the edge and pops back to the top for another try. No timers. No lives. No reading. Every instruction is a picture, a wiggle, and a friendly voice.

SIX STEM WORLDS, 48 PUZZLES Ramp Hill: things roll downhill, and steeper means faster. Bouncy Meadow: trampolines and bumpers send Rollie flying. Seesaw Springs: a lever tips when something heavy lands on one end. Windy Peaks: fans push and balloons lift. Magnet Mine: magnets pull Rollie toward them. Gear Works: gears and belts carry Rollie along.

Each world opens with a one-sentence Lab Card that says the idea out loud ("Things roll downhill!"). Pieces are named by shape when picked up, so triangle ramps and circle bumpers turn into words. Sparkles collected along the way are counted aloud: one, two, three.

WHAT IS FREE Worlds 1 and 2 (16 puzzles) are free to play, with no ads.

WHAT THE FAMILY PASS ADDS The optional Tinker Roll Family Pass unlocks worlds 3 to 6 (32 more puzzles), the Tinker Lab sandbox where kids place any pieces on an empty stage and see what happens, and costumes for Rollie. One pass covers everyone in your Family Sharing group.

FOR GROWN-UPS Made for ages 3 to 7. There are no ads, no chat, no accounts, and no data collection. Progress is saved on the device and the game plays offline. The Grown-ups button on the title screen asks a quick arithmetic question before it opens purchases, restore, sound settings, and outside links. Nothing behind that gate is reachable by tapping around.

SUBSCRIPTION DETAILS Family Pass is an optional auto-renewing subscription: USD 4.99 per month, or USD 29.99 per year with a 7-day free trial on the yearly plan. Prices in other countries may vary. Payment is charged to your Apple Account when you confirm the purchase, or at the end of the free trial unless you cancel at least 24 hours before it ends. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel any time in Settings, under your Apple Account, then Subscriptions. Internet may be needed for purchases, restore, and subscription management. Progress does not sync between devices.

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