Back to the lab.

Open a campaign puzzle, tap Build Rule, then open the block library. In version 1.3, the Solution Blocks button is directly below Basic / Advanced. Tap it and confirm Show Solution Blocks. In version 1.2, open Library Options (the three dots beside Search Blocks) to find it. The filter is available in campaign puzzles, not Sandbox. It shows block types for one valid solution without filling in your values or connections.

Close the block library and use Expand Canvas. Pan or zoom the workspace, and use Fit Canvas to bring your blocks back into view. Library search and the Basic / Advanced selector help you keep the workspace focused.

The free 30-day Trial activates through the App Store. It includes campaign puzzles L-01 through L-15 and Sandbox. It ends after 30 days or completion of L-15, whichever comes first. After that, gameplay requires the one-time Full Game Unlock. There is no subscription or automatic charge.

Use the same Apple Account as your original purchase. Open Settings → Restore Purchases, or Restore Purchases on the access screen. Connect to the internet and allow the App Store check to finish. Restoring a trial preserves its original start date; it does not start another 30 days.

Ending the trial does not delete progress, notes, probes, or Sandbox creations. Full Game Unlock lets you continue playing. Data is stored locally. Removing the app or using Reset All Progress can remove local data; restoring a purchase does not restore deleted gameplay data.

An internet connection and an Apple Account are needed to activate the free trial, buy, or restore. Gameplay works offline after access is verified. The app does not require its own account.

Check your internet connection and App Store account, then tap Retry App Store Connection. A purchase awaiting approval unlocks access after Apple approves it. For billing or refund requests, use Apple’s Report a Problem service. Do not send payment details or your Apple Account password to the developer.