Spiro Designs vs Phosphor Press

Spiro Designs draws the patterns a small circle makes as it rolls around the inside of a large one. Stamp circles or polygons at every step, or let a single point leave a spirograph trail, then play with size, spacing, colour and blend mode until something beautiful appears. WHAT YOU CAN DO • Pick a shape: circles, a line, triangles, squares, all the way up to decagons, or a classic spirograph curve • Pinch the drawing to change size, drag sideways to change spacing, drag up and down for line weight • Choose fill, outline or both, with 23 named colours or random colours on every change • Combine overlapping colours with 20 blend modes, from Difference and Exclusion to Screen and Multiply • Even-odd fill turns overlapping shapes into lace and checkerboard patterns • Start from twelve curated presets, or roll a random design with one tap • Animate the design being drawn, and tap for a clean full-screen view • Undo and redo every change • Keep up to 50 named designs and reopen, update or rename them • Share as a high-resolution PNG, save to Photos, or export an SVG vector file for design apps, plotters and cutters No account, no ads, no tracking. Your designs stay on your device.

Phosphor Press turns a photograph into the kind of picture a machine would have shown you before it could show everything: a few tones, a visible grain, and hard pixel edges. Not a filter laid over your photo. The picture is taken apart and rebuilt on a palette of two, four or sixteen colours, with the dithering that made those palettes bearable in the first place. SCREENS AND PRINT Paper — dark ink on warm paper, four tones. The one to start with. Ink — the same, at two tones, for a woodcut edge. Amber and Green Terminal — the monochrome monitors, at two levels or four. Inked 256 — full colour under hard black outlines. CGA 1984, CGA Outline, EGA Adventure — the hardware palettes, matched in a perceptual colour space so four colours still look deliberate. Mosaic — your photo's own colours in big square blocks. CONTROLS THAT DO SOMETHING Pixel size, from a coarse mosaic to a fine grain. Period screen modes keep their original non-square pixels, so 320x200 looks the way it did on a real monitor. Outlines that follow shapes rather than brightness. The app segments the picture into regions and draws the boundaries between them, so a line closes around an object instead of breaking up wherever contrast dips. Even lighting, which divides out the light in a scene so a surface split by a shadow stays one colour instead of becoming two objects. Auto levels, contrast, saturation, flattening, and frame shapes from square to 16:9 with a manual crop. WHAT IT IS GOOD AT Strong shapes and clear contrast: architecture, landscapes, silhouettes, objects against a plain background, anything backlit. A photograph reduced to four tones keeps what a silhouette is made of. It is honest about the rest. Fine texture — hair, foliage close up, crowds — is what these palettes have to throw away, and portraits are the hardest subject of all. Monochrome handles them better than the colour palettes do. NOTHING LEAVES YOUR DEVICE No accounts, no analytics, no advertising, no server. The app works with the network switched off entirely. Your photos are read, converted and shown back to you, and they go somewhere else only when you save or share them yourself. FREE, AND PRO Every palette, every dither mode and every frame size are free, forever. Phosphor Press Pro is a single one-time purchase. It removes the signature from exports, adds CRT effects — scanlines, phosphor glow, aperture grille, vignette — adaptive palettes picked from your own photo, exports up to eight times the pixel size, and your own saved presets, exportable to another device.