Brickium press kit

At a glance

• What it is: an app that designs a model from the bricks you already own, with 3D building steps
• Made by: Zhang Liu, an independent developer
• Out since: 24 September 2026, on the App Store; current version 1.1
• Runs on: iPhone and iPad, iOS 17 or later
• Price: free to download, and free to add and scan bricks; one free creation after sign-in and another after the first finished build; then packs from $2.99 for two, bought once and never expiring; no subscription, no ads, no tracking
• Why it builds: the AI suggests a design, then a checker makes sure every part is in your box, nothing overlaps and every brick is held up; designs that fail are never shown or charged
• Parts today: 29 basic part types in 20 colours, so models are small and chunky; about thirty common parts are recognised from a photo
• Languages: English, Simplified Chinese and Traditional Chinese
• Age rating: 16+; accounts are for adults, and children can build along
• Where: the App Store everywhere except mainland China
• Trademark: LEGO® is a trademark of the LEGO Group, which does not sponsor, authorize or endorse this app. Brickium works with standard building bricks, including LEGO bricks and compatible bricks.
• Links: App Store · brickium.app

If you need a line about it

One line: Turn the box of loose bricks you already own into tonight’s build.

A paragraph: Most homes with building bricks end up with the same thing: a big box of mixed parts and no instructions. Brickium starts there. Add what you have, by photo or set number, and say what you want in plain words, like "a small car with four wheels" or "a house with a red roof". The AI designs it from your parts only, and a checker throws out anything that needs a brick you don’t have or a piece floating in mid-air. If your bricks can’t make it, Brickium tells you, rather than quietly building something else. Then it walks you through every step in 3D.

Screenshots and icon

Tap any image for the full-size file. Use them freely in coverage of Brickium.

Download everything as one ZIP: the icon at 1024 × 1024, the screenshots and these facts as text. Just the icon: brickium-icon-1024.png.

From a pile of bricks to a finished design in 31 seconds: watch the YouTube Short.

Worth writing about

• What to do with a box of loose bricks and no instructions.
• Why the AI’s design gets checked by plain code before anyone sees it.
• Building with kids from what is already in the house, instead of buying another set.
• Making a 3D app alone, and what still isn’t good enough.

Get in touch

Email zhang3917@gmail.com. It goes straight to Zhang Liu.

Questions people ask