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Comparison · Infra & APIs
GravityKit vs sps
A side-by-side editorial comparison of GravityKit and sps — release velocity, themes, recent moves, and the top alternatives to consider.
GravityKit vs sps: at a glance
What is GravityKit?
GravityKit's exporter stops producing files and starts keeping a spreadsheet in sync.
GravityKit ships weekly across a suite of Gravity Forms add-ons, publishing a Launch Log digest alongside dedicated announcements for the larger items. This window covers Google Sheets export in GravityExport, unions in Multiple Forms, rich text inline editing in GravityEdit, and a long tail of Gravity Forms 3.0 and WordPress 7.0 compatibility fixes.
What is sps?
sps keeps sanding down sequential Poisson sampling rather than adding to it.
The package implements sequential Poisson sampling for survey design, covering inclusion probabilities, proportional allocation, replicate weights, and take-all strata. Recent releases are small and tightly scoped: a divisor method helper, an iterator that draws a sample one unit at a time, automatic selection of the replicate-weight parameter, and repeated performance work on inclusion probability calculation.
GravityKit vs sps: editorial side-by-side
GravityKit
6.3INFRA · APIS
GravityKit's exporter stops producing files and starts keeping a spreadsheet in sync.
◆ Current state
GravityKit ships weekly across a suite of Gravity Forms add-ons, publishing a Launch Log digest alongside dedicated announcements for the larger items. This window covers Google Sheets export in GravityExport, unions in Multiple Forms, rich text inline editing in GravityEdit, and a long tail of Gravity Forms 3.0 and WordPress 7.0 compatibility fixes.
◆ Where it's heading
The suite is shifting from displaying form data to moving it. Unions stack entries from several forms into one View, Google Sheets export keeps an external sheet current, and the MCP add-ons in the same window expose theme and entry data to agents. Taken together, Gravity Forms entries are being treated as a data source other systems consume rather than something rendered on a WordPress page.
◆ Prediction
Expect additional live-sync destinations following the Google Sheets pattern, and continued compatibility work while Gravity Forms 3.0 and WordPress 7.0 adoption spreads.
sps
2.5INFRA · APIS
sps keeps sanding down sequential Poisson sampling rather than adding to it.
◆ Current state
The package implements sequential Poisson sampling for survey design, covering inclusion probabilities, proportional allocation, replicate weights, and take-all strata. Recent releases are small and tightly scoped: a divisor method helper, an iterator that draws a sample one unit at a time, automatic selection of the replicate-weight parameter, and repeated performance work on inclusion probability calculation.
◆ Where it's heading
Development is consolidation rather than expansion. Most releases either speed up an existing routine or remove a decision the user previously had to make by hand, such as picking the smallest parameter that keeps replicate weights non-negative. Documentation and tooling get comparable attention to the algorithms, with a dedicated vignette on inclusion probabilities and a recent switch of test and documentation infrastructure. The API surface has been essentially stable across the window.
◆ Prediction
Expect continued small ergonomic and performance releases against the existing function set rather than new sampling designs, which is the pattern every release in this window follows.
Alternatives to GravityKit and sps
Other Infra & APIs 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 GravityKit or sps.
ManageEngine Applications Manager
Applications Manager pushes monitoring past the server and out to the end user's network path
ToolJet
ToolJet's LTS and beta trains both narrow to component polish and CVE patching
missSBM
missSBM returns after four dormant years with a stricter API and a new refinement step.
Luminescence
Luminescence is revisiting the statistical assumptions baked into its dose-response fits.
simDAG
simDAG grew a second simulation engine, then spent two releases surviving upstream breakage.
See all GravityKit alternatives → · See all sps alternatives →
Recent activity from GravityKit and sps
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoGravityKitAnnouncing Google Sheets export for GravityExport: spreadsheets that keep up with your forms ⚡
- 4d agoGravityKitLaunch Log: Google Sheets export, adaptive DataTables columns, and calendar sync fixes
- 8d agoGravityKitAnnouncing unions for Multiple Forms: stack entries from many forms in one View
- 11d agoGravityKitLaunch Log: Multiple Forms unions, rich text inline editing, and Gravity Forms 3.0 fixes
- 18d agoGravityKitLaunch Log: Drag-to-copy in the View editor, Gravity Forms 3.0 fixes
- 25d agoGravityKitLaunch Log: theme template editing in Block MCP, Shield silentCAPTCHA for Zero Spam, and GravityView fixes
- 1mo agospsDocumentation polish; switches to tinytest and litedown
- 9mo agospsFixes extra argument handling in sps_iterator()
- 11mo agospsAdds divisor_method() and a one-unit-at-a-time sampling iterator
- 1y agospsAdds an inclusion-probability vignette and faster partial sorting
- 1y agospsAutomatic tau selection for replicate weights
- 2y agospsAdds becomes_ta() for take-all stratum sample sizes
Frequently asked questions
What is the difference between GravityKit and sps?
They serve adjacent needs but don't currently overlap on shipped themes. GravityKit is currently shipping more aggressively (velocity 6.3 vs 2.5), with 1 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 GravityKit better than sps?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. GravityKit is currently shipping more aggressively (velocity 6.3 vs 2.5), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to GravityKit?
Top GravityKit alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "GravityKit alternatives" section above for the current picks, or visit /alternatives/gravitykit for the full list with editorial commentary on each.
What are the best alternatives to sps?
Top sps alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "sps alternatives" section above for the current picks, or visit /alternatives/sps for the full list with editorial commentary on each.