Unlimited Backgrounds
Generative patterns and gradients.
The app opens on a wall of hand-graded picks, cut to your own screen’s shape. Swipe the color rail until one of them is yours, then export a background that stays sharp at every size — gradients, repeating patterns, mathematical tilings, fractals, mazes and abstract art, every result generated on your device from a small, reproducible recipe.
Pick by eye, not by settings
- Picks open the app as full-bleed posters at your screen’s own aspect ratio, and the rest of the catalog follows as one pile per family. Tap a pile to scan that family; a large family opens onto its own groups first.
- Jump to is the table of contents — Picks, your saved backgrounds, and every family in the catalog. Or search the whole catalog by name.
- Browse every visual category: Gradients & Blends, Rays & Radials, Repeating Patterns, Depth & 3-D, Lines, Waves & Doodles, Blobs & Daubs, Scattered Shapes, Fields & Flow, Tilings & Tessellations, Mazes & Automata, Fractals, Art, Growth & Nature, Symmetry & Ornament, and Light & Material.
- Explore the mathematical tiling families — Penrose, girih, Ammann-Beenker, Escher edge morphs, hyperbolic disks, and the spectre monotile — plus Voronoi cells, Delaunay shards, maze algorithms, escape-time fractals, strange attractors, L-system curves, and reaction-diffusion.
- Drop tile ornaments — girih strapwork, rosettes, stars, hatching, Truchet arcs — inside any tiling family’s tiles.
Color is a rail, and you can pin it
- Every curated palette sits in a rail under the artwork, recoloring it live as you move along them, with a Light/Dark switch beside it.
- Axis chips under the art say where you are. Tap one and that axis’s siblings slide up, drawn in the palette you are already wearing, so you compare geometry against geometry instead of against a color change.
- Hold a chip to lock that axis — which is what turns Surprise Me from a slot machine into an instrument. Pin the color, and every roll is another picture in it.
- Random works at the level you are on, Variation rerolls the current design, and Surprise Me chooses everything that is not locked.
Every background is a recipe
- Adjust each design’s own parameters alongside the shared dials: color, harmony, tone, saturation, contrast, hand-drawn wobble, grain, vignette, edge fade, and framing.
- The preview responds while you drag, stays sharp as the window changes, and supports Fit, precise 1:1 inspection, and pinch zoom.
- Compare four complete variations side by side, choose one, and return to the full canvas without losing the recipe that produced it.
- Choose a canvas for the real destination — landscape, portrait, square, story, photo and banner ratios, or a custom width and height. New canvases start at your display’s native pixel size, and Device Display returns to it at any time. The recipe reflows rather than being cropped.
- Every step is undoable, and the app reopens on the artwork you left.
Take it with you at any size
- Export compact SVG, expanded SVG for editors without pattern support, or PNG at standard and high resolution.
- Copy web-ready CSS or an SVG data URI directly into a project.
- Set the result as the desktop background on Mac — one display or all of them, each rendered at its native resolution. On iPhone and iPad, save to Photos or share it anywhere.
- Automate it with Shortcuts: the Get Background Image action pairs with Apple’s Set Wallpaper Photo to give your phone a fresh background every morning.
- Recents keeps the last backgrounds you actually set, so going back to yesterday’s is one tap.
Reproducible, private, and native
- Small by design — favorites store the recipe rather than a rendered picture, so the same parameters and seed recreate the same artwork whenever you need it.
- Private by construction — generation happens on your device. Favorites stay local as small, portable JSON files; nothing leaves your device.
One purchase, every device
One purchase covers Mac, iPhone, and iPad.
No account, no subscription, no in-app purchases, no ads, no analytics, and no tracking.