Nicheloom visits: 58,094 all-time · 7,637 in the last 7 days

The opportunity tracker for new startups.

Today: 1,953 launches · Niche of the day: specialized calculation tools · See what launched today →

Kaartje

Utilities

Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.

Want to reach these readers? Sponsor an issue.

There's a box of cards somewhere in your house. Kaartje is for that box. Scan a card, front and inside, and it opens on your phone like the real thing: it folds out in 3D, handwriting and all. Your cards stay on your devices and in your own iCloud. There's no account, and we never see them. Keep 5 Kaartjes free. After that, one payment for up to 20, up to 100 or unlimited. No subscription. Kaartje (KART-yuh) is Dutch for "little card".

PH · launched Oct 18, 2026 · 1 upvote (top 67%) · 0 views

Niche: digital wallet and mobile loyalty apps · 53 launches, 4 in the last 7 days ▼ -50% · Explore this niche →

Category and tags
  • Horizontal
  • Workflow automation
  • B2C
  • Not AI
  • Hobby / open-source project
  • iOS
  • Apple

Visit website ↗ Source listing ↗

More like this: all 53 launches in digital wallet and mobile loyalty apps →

Could you build this?

Partial The document scanning, local/iCloud storage, and simple UI are straightforward, but generating an accurate, interactive 3D folding mesh from captured scans of a physical greeting card with realistic paper physics requires non-trivial 3D graphics work.

What it would actually take: A native iOS app built in Swift using VisionKit/CoreImage for document perspective correction, SceneKit/RealityKit or custom Metal shaders for realistic textured double-sided 3D paper folding animations, and CloudKit for serverless synchronization. The hard part is automatically detecting card fold creases, generating the articulated 3D mesh from front and inside scans, and delivering smooth gesture-driven un-folding physics on mobile devices.

Competitors

Other products that read as similar to this one : 305 launches clear the similarity bar, closest 8 shown.

Attention rank: #178 of 306 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 42 days after the earliest competitor.

Related data

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.