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Comparison · Design

Linearity vs Spectra

A side-by-side editorial comparison of Linearity and Spectra — release velocity, themes, recent moves, and the top alternatives to consider.

Linearity vs Spectra: at a glance

FeatureLinearitySpectra
SectorDesignDesign
Velocity score3.85.0
Sparks · 30d00
Top themesvector-design, generative-ai, ios, macoswordpress, page-builder, gutenberg-blocks, accessibility
Last editorial update3mo ago17h ago
Website—Visit →

What is Linearity?

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.

Read the full Linearity trajectory →

What is Spectra?

Spectra Blocks Pro 1.0.7 fixes headers on block themes as the fidelity work continues.

Spectra Blocks spent the autumn on fidelity: matching editor previews to live sites, fixing classic-theme spacing and Site Editor alignment, and letting its content count toward Yoast and Rank Math. 1.0.14 improved front-end loading and Slider accessibility, 1.0.15 added custom HTML attributes, and Pro 1.0.7 fixes per-page headers on Full Site Editor themes along with Loop Builder, Countdown and Modal rendering.

Read the full Spectra trajectory →

Linearity vs Spectra: editorial side-by-side

L
Linearity
DESIGN
3.8

Linearity bets on generation that hands back editable layers, not a flat image.

◆ Current state

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.

◆ Where it's heading

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.

◆ Prediction

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.

S
Spectra
DESIGN
5.0

Spectra Blocks Pro 1.0.7 fixes headers on block themes as the fidelity work continues.

◆ Current state

Spectra Blocks spent the autumn on fidelity: matching editor previews to live sites, fixing classic-theme spacing and Site Editor alignment, and letting its content count toward Yoast and Rank Math. 1.0.14 improved front-end loading and Slider accessibility, 1.0.15 added custom HTML attributes, and Pro 1.0.7 fixes per-page headers on Full Site Editor themes along with Loop Builder, Countdown and Modal rendering.

◆ Where it's heading

After the AI page import push in September, releases have been about trust in the output: render it correctly, make it count for SEO, now make it fast and accessible. The Pro add-on follows the same cadence with design-token and dynamic-data fixes.

◆ Prediction

Expect accessibility passes on other interactive blocks such as tabs or accordions, following the Slider, alongside further Pro fix rounds.

Alternatives to Linearity and Spectra

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 Spectra.

See all Linearity alternatives → · See all Spectra alternatives →

Recent activity from Linearity and Spectra

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoSpectraSpectra Blocks Pro 1.0.7 — per-page headers on FSE themes, plus Loop Builder, Countdown, and Modal fixes
  2. 2d agoSpectraSpectra Blocks 1.0.15 — custom HTML attributes, plus modal and embedded-form fixes
  3. 7d agoSpectraSpectra Blocks 1.0.14 — faster front-end performance and a screen-reader- and keyboard-friendly Slider
  4. 15d agoSpectraSpectra Blocks 1.0.13 — reliable spacing on classic themes and correct Site Editor alignment, plus SEO content support
  5. 23d agoSpectraSpectra Blocks Pro 1.0.6 — reliable dynamic data in templates, plus Loop Builder and Slider fixes
  6. 24d agoSpectraSpectra Blocks 1.0.12 — accurate Post block images and previews, plus safer block editing
  7. 3mo agoLinearityCurve 6.12 adds Quiver AI generation with editable layers ⚡
  8. 5mo agoLinearityCurve 6.11: noise effect, SVG and performance gains
  9. 6mo agoLinearityCurve & Move 6.10: corner smoothing, path bending and a community hub
  10. 7mo agoLinearityCurve & Move 6.9: Super Resolution, snapping and image handling
  11. 7mo agoLinearityLinearity Curve & Move 6.9 brings smarter tools and cleaner workflows
  12. 8mo agoLinearityCurve 6.8 adds a Glass Effect with refraction and dispersion

Frequently asked questions

What is the difference between Linearity and Spectra?

They serve adjacent needs but don't currently overlap on shipped themes. Spectra is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Linearity better than Spectra?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Spectra is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Design products to evaluate alongside.

What are the best alternatives to Linearity?

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.

What are the best alternatives to Spectra?

Top Spectra alternatives in Design are ranked by recent ship velocity. Browse the "Spectra alternatives" section above for the current picks, or visit /alternatives/spectra for the full list with editorial commentary on each.