Calibration Flow vs Print Lab

Calibration Flow is the tonal calibration tool for silver-based and alternative photographic processes: cyanotype, platinum-palladium, gum bichromate (Aquaprint), carbon, Van Dyke, resinotype. KEY FEATURES • Custom calibration curves per process, paper and negative • Pre-calibration sheet: 9 variants around a central reference, with a correction curve applied first and increments of 5, 10 or 25; larger photos, targets and grayscale ramps help compare settings. • Digital negative: high-resolution generation and export (300 to 720 dpi, continuous tones or halftones) • Direct printing: send the negative to your printer from the app, with no AirPrint and no third-party app — it asks the machine what it can do before sending, honors its hardware margins, and follows the job • CMYK tonal separation with black generation control (GCR), including multi-zone • Full Gamut color mode with 5, 6 and 7 channels (Orange, Green, Violet), to go beyond simple CMYK • Ink steps: set where each ink stops, in negative as well as positive, combinable with zones • Screen angles: one angle per ink (rosette) or all aligned • Color Venn: printing test target and ink-layer overlay simulator, with eyedropper and magnifier • .acv export for Photoshop, Lightroom, Affinity Photo and GIMP • Registration marks: a frame of targets around the image and a mini-target that follows the output, in negative as well as positive • Harmonic exposure timer with circular dial, multi-device sync, and Dynamic Island / Live Activity on iPhone • Bluetooth control for compatible UV lamps (BanlanX SP630E controller) — on/off control from the app, no variable-intensity dimming • HD media library with cloud sync and multi-device access • Large-format tiling: edge-to-edge A4, A3 and A3+ sheet assembly PRO SUBSCRIPTION Calibration Flow is free with: – 3 cloud-synced calibration curves – 300 MB of cloud storage – Unlimited presets – CMYK tonal separation (4 inks) The Pro subscription unlocks: – Unlimited calibration curves – 5 GB of cloud storage – .acv export (Photoshop) – Color mode with extended inks (5 to 7) – Advanced separation settings: black generation, fine tuning Two plans: €9.90/month, or €99/year (equivalent to €8.25/month, effectively 2 months free). Auto-renewing, cancel anytime in your Apple account Settings. Your subscription works across all your Picturale devices. Calibration Flow is part of the Picturale ecosystem, dedicated to silver-based photographic processes and non-toxic photography. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Calibration Flow Terms: https://calibrationflow.com/cgu

Print Lab turns ordinary photos into print-textured artwork — the kind of ink, dot, and paper character you'd get from an actual Risograph, a newspaper press, a screen-printing shop, or a copperplate engraver's bench. FIVE PRINT STYLES Risograph — bold duotone color separation with visible halftone dots and the slight color misregistration that gives real riso prints their handmade look. Newspaper — high-contrast black and white with authentic newsprint grain and halftone dot screening. Screen Print — flat, posterized color with a coarse screen pattern, like a hand-pulled silkscreen poster. Engraving — fine wavy lines that swell in the shadows and cross-hatch in the darks, like a banknote etching. Stipple — thousands of tiny ink dots whose density carries the tone, like a vintage stamp. MADE FOR Independent designers, photographers, illustrators, poster and zine makers, musicians and podcasters who need a fast, recognizable print look for covers, social posts, and prints — without learning prepress software. HOW IT WORKS Pick a photo, pick a style, and Print Lab renders it instantly. Adjust texture and grain with two simple sliders and see the result update live. Compare before and after, then export — free, up to 2048px on the long edge, plenty for social media and messaging. PRINT LAB PRO All five styles are free to use at full quality preview. A one-time Pro purchase (no subscription) unlocks export at your photo's full original resolution — real print-quality output, not a downscaled preview. PRIVACY, BY DESIGN Your photos are processed entirely on this device and never uploaded anywhere. Print Lab only asks for permission to add exported images to your photo library — it cannot read your existing photos beyond the ones you explicitly pick. All print textures (paper grain, ink grain, halftone screens) are generated procedurally by Print Lab itself; this app ships no third-party image assets, fonts, or textures. Print Lab is a focused tool, not a general-purpose photo editor. It does one thing: turning digital photos into print-styled artwork.