Cardio

App icon: a bold health & fitness app called Cardio — understand your heart data. Centered glyph: an ECG heartbeat line, rendered in #0ea06f. die-cut sticker style, the glyph wrapped in a thick white outline with a soft shadow, radial gradient background glowing from #10b981 at the center out to #059669 at the edges. Details: gentle repeating wave lines across the background; a luminous glow radiating from the glyph. Requirements: square 1:1 canvas at 1024×1024, full-bleed background with no transparency, no text or wordmarks, no baked-in rounded corners or borders (the OS applies its own mask), glyph optically centered and contained within the central 66% safe zone so it survives the iOS squircle and Android circular launcher masks, crisp anti-aliased edges, high detail, professional app-store quality.

App icon: a bold health & fitness app called Cardio — understand your heart data. Centered glyph: an ECG heartbeat line, rendered in #0ea06f. die-cut sticker style, the glyph wrapped in a thick white outline with a soft shadow, radial gradient background glowing from #10b981 at the center out to #059669 at the edges. Details: gentle repeating wave lines across the background; a luminous glow radiating from the glyph. Requirements: square 1:1 canvas at 1024×1024, full-bleed background with no transparency, no text or wordmarks, no baked-in rounded corners or borders (the OS applies its own mask), glyph optically centered and contained within the central 66% safe zone so it survives the iOS squircle and Android circular launcher masks, crisp anti-aliased edges, high detail, professional app-store quality.