Astra
Two release trains, zero new features — Astra has been in pure maintenance mode since spring.
A side-by-side editorial comparison of Linearity and Storybook — release velocity, themes, recent moves, and the top alternatives to consider.
| Feature | Linearity | Storybook |
|---|---|---|
| Sector | Design | Design |
| Velocity score | 3.8 | 5.0 |
| Sparks · 30d | 1 | 0 |
| Top themes | vector-design, generative-ai, ios, macos | angular, compodoc, tanstack, component-metadata |
| Last editorial update | 4d ago | 1d ago |
| Website | — | Visit → |
Linearity bets on generation that hands back editable layers, not a flat image.
Curve ships roughly every six to eight weeks on iOS and macOS, and until now the releases were craft work: a glass effect with refraction and dispersion, corner smoothing and path bending, Super Resolution and snapping, a noise effect with SVG and performance gains. Version 6.12 changes the subject by adding Quiver AI generation, framed around keeping every layer owned and editable after the model has run. The companion app Move contributes on its own track, with Lottie export for web and mobile motion graphics.
The 10.6 alphas are an Angular tooling rebuild wearing a version number.
Storybook is five alphas into 10.6.0, shipping roughly weekly. The dominant thread is Angular: Compodoc parsing extracted into its own package, docgen moved to the server, on-demand Compodoc runs, required inputs derived from Compodoc's own flag, and alias-collision handling corrected. Alongside it, TanStack support keeps getting patched into shape and TypeScript 6.0.3 landed in the first alpha.
Curve ships roughly every six to eight weeks on iOS and macOS, and until now the releases were craft work: a glass effect with refraction and dispersion, corner smoothing and path bending, Super Resolution and snapping, a noise effect with SVG and performance gains. Version 6.12 changes the subject by adding Quiver AI generation, framed around keeping every layer owned and editable after the model has run. The companion app Move contributes on its own track, with Lottie export for web and mobile motion graphics.
The pitch — generation starts it, the designer owns the layers — is a deliberate contrast with image models that return a finished raster. For a vector tool on Apple platforms, that is the only version of AI that fits the product: output has to arrive as paths a designer can keep working. The release cadence and the Move track suggest the wider ambition is a design-to-motion pipeline on iPad and Mac, with Lottie as the handoff format.
Expect the next releases to extend generation deeper into the vector editing surface rather than adding separate AI panels, since editable output is the entire argument. How Quiver AI is priced or metered is not visible in these entries.
Storybook is five alphas into 10.6.0, shipping roughly weekly. The dominant thread is Angular: Compodoc parsing extracted into its own package, docgen moved to the server, on-demand Compodoc runs, required inputs derived from Compodoc's own flag, and alias-collision handling corrected. Alongside it, TanStack support keeps getting patched into shape and TypeScript 6.0.3 landed in the first alpha.
Two rebuilds are running in parallel. The Angular integration is being decomposed — parsing, docgen, and metadata pulled out of the framework adapter and into shared packages, with work moving off the client and onto the server. Separately, a component-metadata layer is forming in core (ComponentMetaManager, manifest component API fields, shared CSF story-shape helpers), which reads like groundwork for tooling that consumes Storybook's metadata rather than its UI. TanStack Start is being treated as a first-class router target rather than an edge case.
The Angular extraction looks close to done, so expect the remaining alphas to shift toward stabilizing the manifest and metadata APIs before a 10.6 beta.
Other Design products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Linearity or Storybook.
Two release trains, zero new features — Astra has been in pure maintenance mode since spring.
A component library turning into scaffolding for AI apps
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Steady 1.3 maintenance, with the Lua API quietly becoming Aseprite's extension point.
Webflow is building for the answer engines, not just the search results page.
Every image reader is now assumed hostile, and the fuzzer proves it monthly
See all Linearity alternatives → · See all Storybook alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Storybook is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 1. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Storybook is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 1. For your specific use case, the alternatives sections above list other Design products to evaluate alongside.
Top Linearity alternatives in Design are ranked by recent ship velocity. Browse the "Linearity alternatives" section above for the current picks, or visit /alternatives/linearity for the full list with editorial commentary on each.
Top Storybook alternatives in Design are ranked by recent ship velocity. Browse the "Storybook alternatives" section above for the current picks, or visit /alternatives/storybook for the full list with editorial commentary on each.