Thermo Sudoku — a new variant. Digits climb from each thermometer's bulb to its tip. Every size up to 9×9, and most boards need no starting digits at all: the thermometers alone are enough to pin the grid down. Also in this update: • A much bigger board on small and folding phones. On a compact screen the grid had been taking about half the width — it now fills it. • Landscape is a real layout instead of a squeeze: the controls sit beside the board rather than above and below it. • Everything holds together at large accessibility text sizes, in English and German. • Explain the solve fits the screen it is on, so the whole board and the explanation are visible at once. • Pencil marks are readable again on 10×10 and 12×12 boards. • Killer puzzles now draw their cages correctly in every build. • Fixed a startup problem that could leave the game showing a blank screen.

• A new look for the home screen, with a redesigned title and at-a-glance stats. • 26 achievements across four tiers, with progress tracking and three new themes to unlock. • Fixes digits being cut off or shrunk on the board and the number pad. Both now scale to the screen, so they stay centred and legible at any size or orientation. • Fixes a crash that could occur when resuming a saved game. • Smoother background animation, lighter on the battery.

Fixes the on-screen number pad. On some screens the number buttons at the bottom of the board could appear oversized and get cut off, hiding the digits. The pad now scales to fit any screen so every number stays fully visible.