Pricing
Start free in the browser. Upgrade to Pro when you need 3MF export, CMYK lithophane packages, unlimited layers, or higher daily export limits.
Free
$0
- Browser-based ColorStack, LithoStack, and FlatStack
- STL export with daily limits
- Up to 8 color layers on ColorStack mode
- Preview and shape tools for lithophanes
Pro
Subscription via Stripe after sign-in
- Unlimited color layers
- Unlimited daily exports
- 3MF export with printer profiles
- CMYK lithophane 3MF and advanced packages
Open the app, hit an export or layer limit, and choose upgrade—or sign in and upgrade from your account menu.
Open ColorStackFAQ
- Is ColorStack free to use?
- Yes. You can upload images, preview, and export STLs on the free tier with daily limits. Pro unlocks 3MF export, higher limits, and advanced workflows.
- What does Pro include?
- Pro typically includes unlimited color layers, unlimited daily exports, one-click 3MF export with printer profiles, CMYK lithophane 3MF, and saved project benefits where enabled.
- Do LithoStack and FlatStack cost extra?
- They are part of the same ColorStack app. Lithophane and FlatStack exports follow the same free and Pro limits as other modes.
- How do I upgrade?
- Sign in from the app and use the upgrade prompt when you hit a limit, or start from any tool page and sign in before checkout.
Explore filament painting, lithophanes, and FlatStack. See all tools and guides for workflow details.