Cortex
Cortex 1.22 is on its fourth candidate, with sharded Parquet and years of deprecated flags removed.
Comparison · Analytics
Calibre vs Stitch
A side-by-side editorial comparison of Calibre and Stitch — release velocity, themes, recent moves, and the top alternatives to consider.
Calibre vs Stitch: at a glance
What is Calibre?
Lighthouse 13.6 shifts Calibre's scores and adds audits for how AI agents read your pages
Calibre's Test Agents moved to Chrome 156 and Lighthouse 13.6.0, which fixes how simulated throttling calculates LCP and FCP, so scores on PageSpeed Desktop and PageSpeed Mobile Test Profiles should mostly improve with no site change. Snapshots also gained Lighthouse's Agentic Browsing audits, covering the accessibility tree, WebMCP, llms.txt and ARD manifests, a category Google marks as under development. In September the free Core Web Vitals Test added four experimental CrUX ad metrics. August's work attached deployment markers to RUM charts and added all-pages Synthetic aggregates.
What is Stitch?
Stitch keeps patching connectors one replication bug at a time.
Stitch's October output is entirely connector maintenance: replication fixes for Marketo and MailChimp, bounded time windows for Pendo events, a nested-child paging bug in Shopify fulfillment orders, and small schema additions to Shopify and HubSpot. The Workday RaaS connector also gained OAuth 2.0 JWT Bearer authentication. No platform-level change appears in the window.
Calibre vs Stitch: editorial side-by-side
Calibre
2.5ANALYTICS
Lighthouse 13.6 shifts Calibre's scores and adds audits for how AI agents read your pages
◆ Current state
Calibre's Test Agents moved to Chrome 156 and Lighthouse 13.6.0, which fixes how simulated throttling calculates LCP and FCP, so scores on PageSpeed Desktop and PageSpeed Mobile Test Profiles should mostly improve with no site change. Snapshots also gained Lighthouse's Agentic Browsing audits, covering the accessibility tree, WebMCP, llms.txt and ARD manifests, a category Google marks as under development. In September the free Core Web Vitals Test added four experimental CrUX ad metrics. August's work attached deployment markers to RUM charts and added all-pages Synthetic aggregates.
◆ Where it's heading
Calibre remains focused on explaining why a metric moved, and this release shows the hard case: the number can move because the test changed. Tracking new browser and Lighthouse data quickly is part of the product, as the same-day CrUX ad metrics showed. Agentic Browsing audits add a new question to a performance tool, whether agents can use a page, which is still early.
◆ Prediction
Expect deployment attribution to grow into alerting, since a regression tied to a commit is the natural trigger. Agentic Browsing audits should keep changing with Lighthouse, so Calibre's treatment of them depends on Google's direction.
Stitch
5.0ANALYTICS
Stitch keeps patching connectors one replication bug at a time.
◆ Current state
Stitch's October output is entirely connector maintenance: replication fixes for Marketo and MailChimp, bounded time windows for Pendo events, a nested-child paging bug in Shopify fulfillment orders, and small schema additions to Shopify and HubSpot. The Workday RaaS connector also gained OAuth 2.0 JWT Bearer authentication. No platform-level change appears in the window.
◆ Where it's heading
The product behaves like a managed connector library, updated when a source API or a data bug demands it. Several of these fixes correct silent data problems, such as dropped children and archived records missing from sync, and the auth modernization noted in the summer continues on Workday.
◆ Prediction
Expect the same stream of single-connector updates. Nothing in these entries points to platform work.
Alternatives to Calibre and Stitch
Other Analytics 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 Calibre or Stitch.
Countly
Countly's two LTS lines now get the same security fixes within a week of each other.
OpenMetadata
OpenMetadata reaches 2.1 rc1 after a month of repairing 2.0's connectors.
Datawrapper
Datawrapper's October is touch tooltips, keyboard focus and small chart repairs.
Fluent Bit
Fluent Bit spends October bounding what its inputs will accept.
Axiom
Axiom makes agent work checkable, and points alerts straight at coding agents
See all Calibre alternatives → · See all Stitch alternatives →
Recent activity from Calibre and Stitch
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoCalibreChrome 156 & Lighthouse 13.6.0
- 11d agoStitchMarketo (v2): Fix replication issues
- 17d agoStitchPendo (v1): Request Pendo events in bounded time windows
- 18d agoStitchHubSpot (v4): Include archived owners and tickets in sync
- 18d agoStitchShopify (v3): Add refundShippingLines to order_refunds
- 20d agoStitchShopify (v3): Fix: fulfillment_orders drops nested children beyond the second page
- 20d agoStitchMailChimp (v1): Fix bookmark issue and replication method for streams
- 1mo agoCalibreCore Web Vitals Test, now with ad metrics
- 2mo agoCalibreSee the performance impact of every website deployment
- 2mo agoCalibreSynthetic Metrics: All pages, segmented by Test Profile and Deployment
- 3mo agoCalibreMonitor Single Page App performance with soft navigations
- 3mo agoCalibreSynthetic site scan, a new way to import and monitor your site
Frequently asked questions
What is the difference between Calibre and Stitch?
They serve adjacent needs but don't currently overlap on shipped themes. Stitch is currently shipping more aggressively (velocity 5.0 vs 2.5), 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 Calibre better than Stitch?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Stitch is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to Calibre?
Top Calibre alternatives in Analytics are ranked by recent ship velocity. Browse the "Calibre alternatives" section above for the current picks, or visit /alternatives/calibreapp for the full list with editorial commentary on each.
What are the best alternatives to Stitch?
Top Stitch alternatives in Analytics are ranked by recent ship velocity. Browse the "Stitch alternatives" section above for the current picks, or visit /alternatives/stitchdata for the full list with editorial commentary on each.