IRO
Coloring book for adults
A calm, beautifully crafted coloring book for iPhone and iPad — built for those moments when you just want to slow down, breathe, and color. Every page hand-drawn by real artists.
Coloring book for adults
A calm, beautifully crafted coloring book for iPhone and iPad — built for those moments when you just want to slow down, breathe, and color. Every page hand-drawn by real artists.
160+ richly detailed pages across four collections, with new pages added regularly.
Cozy little worlds in isometric detail — a coffee roastery, a tattoo parlor, a champagne cellar, an overnight laundromat, a cheese cave.
10 free cozy printables →Street corners from around the world — Tokyo, Lisbon, Havana, Marrakech, Kyoto, Buenos Aires — each with its own light and mood.
10 free city printables →Fifty botanical studies to fill with color — peony, ranunculus, camellia, lotus, magnolia — from loose and airy to densely petaled.
10 free flower printables →Famous walks reimagined as coloring pages — the Philosopher's Path, Fushimi Inari, Cinque Terre, Lake Louise, Central Park in fall.
10 free nature printables →Nine realistic tools — watercolor, marker, pencil, crayon, fountain pen, tap-to-fill bucket and more — with pressure sensitivity for Apple Pencil.
Curated packs — vintage, autumn, ocean, botanical — plus a full-spectrum picker. Every page also comes with its own suggested palette, so you can just pick and go.
Not sure where to take a color? Every page has a fully colored reference tucked behind a little lightbulb — peek at it, then make it your own.
Every session is quietly recorded, ready to export as a smooth time-lapse of your work — perfect for TikTok, Reels, or Stories.
Watch a finished page bloom from bare outlines into full color, like ink spreading across paper — and share the reveal as a video.
A handful of pages unlock for free every day. No rush, no friction — just open IRO and start coloring.
Your work saves automatically, stroke by stroke, with full undo and redo. Come back any time and pick up exactly where you left off.
Edge-to-edge canvas, pinch-to-zoom deep into the tightest detail, two-finger pan, and a mini-map to stay oriented. Layouts tuned for both.
Rounded typography, soft haptics, a mood-driven accent color, and light or dark to match your evening. Soothing, never noisy.