Logic Lab: less of the screen redraws while circuits run. Tool tempo: a clock outside the tool's 30–110 BPM range now shows a one-tap fix instead of changing silently, and one drag of the tempo slider is a single undo step. Fixes: Undo no longer interferes with a part you're dragging, game sounds try again if they fail to start, sharing no longer hangs when the share sheet can't open, and oversized blueprint codes are declined with a clear message.

A redesigned teaching sequence: 62 lessons across 13 chapters, from AND gates to programs on the four-bit computer. Learn with definitions, observable input/output goals, a concept handbook, circuit repairs and editable instruction cards. New in the Logic Lab: tools you can really use — Morse Key, SOS Light, Motion Alarm and Metronome — running full screen with your phone's flashlight, speaker and vibration. Wires now draw as smooth curves, and part labels on the board appear in your language. Coming from an earlier version? We kept as much of your progress as we could: finished levels that are still in the game stay finished, and your stars carry over. A few reworked or merged levels may need to be solved again. The first 14 lessons and the complete Logic Lab are free. One purchase unlocks the other 48 lessons and future core content.

A new look for Wonder Circuits: a refreshed app icon and a read-only introduction showing what you can build. Clearer full-game unlock screens, including free claims when the App Store price is zero. Improved purchase recovery and saved Lab work handling. Refined first-level guidance, circuit controls and text layout.

A leaner course: five repetitive exercises were merged, leaving 71 levels. Every level you cleared stays cleared. Levels with revised content reset their best score, and an unfinished circuit that no longer fits its new board starts fresh. Multi-bit connections now form clearer buses with width labels and live values. Select, cut and undo a whole bus in one action. A new icon and refreshed screenshots feature a working 4-bit adder. Completed circuits in later levels can now be grouped and expanded. Shared control signals use clearer branched wiring.