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paintr

Turn your photos into a little color and calm

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Turn your photos into paint-by-number puzzles on iPhone and iPad. Paint at your own pace, or send a friend a surprise to uncover. Conversion stays on your device. Free, no ads or subscriptions. Try the public TestFlight beta while App Store review finishes.

PH · launched Sep 18, 2026 · 2 upvotes (top 26%) · 0 views

Niche: coloring page and simulation tools · 56 launches, 4 in the last 7 days ▼ -67% · Explore this niche →

Category and tags

  • Horizontal
  • Content generation
  • B2C
  • AI-native
  • Commercial product
  • Art
  • Photography
  • OpenAI Day

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Could you build this?

Partial A basic UI is simple, but converting arbitrary user photos into clean, vector-like paint-by-number segmented contours and color palettes entirely on-device requires non-trivial computer vision algorithms.

What it would actually take: This requires an on-device computer vision pipeline using CoreImage/OpenCV or Metal shaders on iOS. The algorithms must handle color quantization (e.g., k-means clustering), edge-preserving bilateral filtering, watershed segmentation to produce connected numbered regions, and polygon simplification so user brush strokes fill discrete boundaries cleanly.

Competitors

Other products that read as similar to this one : 930 launches clear the similarity bar, closest 8 shown.

Attention rank: #302 of 931 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 324 days after the earliest competitor.

  • Pastel Pop · ph · 2026-09-26 · 2 upvotes · similarity 0.56
  • HueFetti · ph · 2026-10-25 · 1 upvotes · similarity 0.55
  • Paint & Fold · ph · 2026-11-09 · 2 upvotes · similarity 0.54
  • Photo Ink · ph · 2026-10-04 · 1 upvotes · similarity 0.54
  • Artin: Relaxing Coloring Book · ph · 2026-10-29 · 2 upvotes · similarity 0.53
  • MockMock · ph · 2026-10-21 · 2 upvotes · similarity 0.53
  • Lighter · ph · 2026-10-28 · 2 upvotes · similarity 0.52
  • Calma Color · ph · 2026-10-23 · 2 upvotes · similarity 0.52

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