Stemigo

The 15 minutes before dinner, turned into the best thinking your child does all day.

A short set of logic puzzles your child does in the browser. They get harder when your child gets them right, easier when they don't, so the level always feels just challenging enough. No streaks, no points to collect, no characters dressing up. Just the puzzles, and the small satisfaction of working one out.

A note from Stemigo team

We made this because we couldn't find anything good for our own kids. Most apps for this age group treat children like dopamine machines that need to be tricked into thinking. We think kids can handle real puzzles, and that they enjoy the work when the work is the right size.

Save your spot

We're letting families in slowly. Leave your email below we'll be in touch in the next 3-5 days.

What it does

5 puzzles, 15 minutes

One short session. Designed for the slot before dinner or the end of a long car drive. Long enough to think hard, short enough not to drag.

Adapts to exactly the edge of what they can solve

Two solves in a row, the puzzles get harder. Two stuck, they get easier. Your child stays in the zone where solving feels earned, not handed.

Three kinds of thinking, one session

Pattern, spatial, and numerical puzzles in rotation. The same skills the research keeps pointing to: visuospatial reasoning, working memory, and the ability to hold a sequence in your head.

A parent dashboard that's worth opening

Not "did they play today" but "which kinds of thinking are they getting better at, and which are they still stuck on". Useful, not gamified.

Things we deliberately left out

No avatars, no streaks, no daily missions, no premium tiers, no rewards your child collects for showing up. The dopamine here is from solving hard things.

A sample puzzle

Spatial · Level 3

Fold this paper in half twice. How many rectangles will you see when you unfold it?

⏱ 90 seconds typical 👤 Solo, no help needed 🧠 Spatial reasoning

What your child sees: A piece of paper on screen. They tap to fold it once. Tap again to fold it the other way. Then they're shown the folded paper and asked: how many rectangles, in total, when you unfold this?

Why this puzzle: It looks easy until you try it. Most six-year-olds say four. Most eight-year-olds say six. The answer is nine. The click of working out why nine, not six, is the whole game.

The dashboard records: they got it on the second try, took 50 seconds, and that they're now ready for…

Quick questions

How does the trial work?

Sign up with your email, no card needed. We'll email you when your child's place opens up. Then 2 weeks of free access in the browser. After that, we'll ask if you want to keep going for £15. If not, no charge, no awkwardness.

Why is there a wait to start?

We're shipping to a small group of families first so we can watch what works and fix what doesn't before opening it up. You'll be one of the early testers. Your feedback shapes the product.

What ages is it for?

5 to 8. The puzzles adjust to your child's level inside that range. If your child is older or younger and curious, they'll still get something out of it, but the calibration is sharpest for primary-age. Younger children (5 and 6) will likely want a parent nearby to read the question and tap through the first time. By 7 or 8 most children can run a session on their own.

What does my child actually do?

Open it in any browser, on a tablet or laptop. Five short puzzles in a session. Pattern, spatial, and numerical, in rotation. Most sessions take 12 to 18 minutes. They tap to answer, the puzzle responds, the next one comes.

What's the parent dashboard?

A short page you can open whenever you like. Not a stream of notifications. It tells you which kinds of thinking your child is getting better at, which they're stuck on, and roughly where they sit on each axis. Useful for the school conversation. Not designed to make you anxious.

What happens after the 2-week trial?

We email you. £15 keeps you going indefinitely. If it's not landing for your child, just don't reply. We don't have your card so nothing gets charged. No need to cancel anything.

What about the money-back guarantee?

If you do pay the £15 and it doesn't land for your child in the first 14 days, email us. Full refund, no questions, no forms.

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