Timely
Timely adds seat visibility and per-period budgets in a steady run of weekly releases.
Comparison · Infra & APIs
GravityKit vs Nebula
A side-by-side editorial comparison of GravityKit and Nebula — release velocity, themes, recent moves, and the top alternatives to consider.
GravityKit vs Nebula: at a glance
What is GravityKit?
GravityKit makes Gravity Forms merge tags readable chips you can preview before saving.
GravityKit ships a weekly Launch Log across its Gravity Forms add-ons. Early October brought Visual Merge Tags in Foundation 1.35.0, turning raw merge tags into editable chips previewed against real entries. Later weeks added AI-built boards, AI-managed calendars, a range-slider search, live DataTables totals and a steady stream of security fixes across the suite.
What is Nebula?
Nebula 1.12 adds optional offloading for throughput after a run of platform fixes.
Nebula is a peer-to-peer mesh VPN with its own certificate authority. Since v1.10.0 added IPv6 and multiple overlay addresses, releases have dealt with the fallout: v1.11.1 fixed an IPv6 firewall bypass, and v1.11.2 in September fixed IPv6 MTU on Windows, local address discovery on Android 11+, and checksums for traffic to a host's own IPv6 address on macOS. v1.12.0 on October 29 added optional UDP and TUN offloading, planned to become the default later, and stricter firewall rule parsing.
GravityKit vs Nebula: editorial side-by-side
GravityKit
5.0INFRA · APIS
GravityKit makes Gravity Forms merge tags readable chips you can preview before saving.
◆ Current state
GravityKit ships a weekly Launch Log across its Gravity Forms add-ons. Early October brought Visual Merge Tags in Foundation 1.35.0, turning raw merge tags into editable chips previewed against real entries. Later weeks added AI-built boards, AI-managed calendars, a range-slider search, live DataTables totals and a steady stream of security fixes across the suite.
◆ Where it's heading
The suite is moving in two directions at once: making Gravity Forms configuration less cryptic for site builders, and letting AI assistants operate its products through MCP. Security fixes appear in most weekly logs, a sign of a large plugin surface under active review.
◆ Prediction
Expect more GravityKit products to gain AI-assistant control and weekly security patches; whether Visual Merge Tags spreads to other plugins' settings is unclear.
Nebula
2.5INFRA · APIS
Nebula 1.12 adds optional offloading for throughput after a run of platform fixes.
◆ Current state
Nebula is a peer-to-peer mesh VPN with its own certificate authority. Since v1.10.0 added IPv6 and multiple overlay addresses, releases have dealt with the fallout: v1.11.1 fixed an IPv6 firewall bypass, and v1.11.2 in September fixed IPv6 MTU on Windows, local address discovery on Android 11+, and checksums for traffic to a host's own IPv6 address on macOS. v1.12.0 on October 29 added optional UDP and TUN offloading, planned to become the default later, and stricter firewall rule parsing.
◆ Where it's heading
The IPv6 work has moved from security fixes to per-platform correctness, and 1.12 turns to throughput. Offloading starting as opt-in, with a stated plan to make it default, sets up the next release cycle.
◆ Prediction
Expect 1.12.x patches for offloading edge cases, and a later release that turns offloading on by default as announced.
Alternatives to GravityKit and Nebula
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 Nebula.
Volatility
Volatility 3 2.28.2 adds Mermaid tree output and starts deprecating macOS analysis.
GLAuth
GLAuth's September releases are security dependency updates and build fixes.
LibreSpeed
LibreSpeed 6.3 adds shareable result images and fixes Safari upload tests.
Cronicle
Cronicle closes three permission holes in two days, including API key exposure.
Windmill
Windmill adds workspace roles and AI decision steps as its agent tooling fills out.
See all GravityKit alternatives → · See all Nebula alternatives →
Recent activity from GravityKit and Nebula
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoGravityKitLaunch Log: Live DataTables totals, a Remove Data option, and rounding for Number field merge tags
- 4d agoNebulaRelease v1.12.0
- 10d agoGravityKitGravityKit adds slider search and AI calendar management
- 17d agoGravityKitGravityKit adds AI-built boards and inline Entry Tags editing
- 24d agoGravityKitLaunch Log: Search Everything matches what fields show, steadier map searches, and security updates
- 1mo agoGravityKitAnnouncing Visual Merge Tags: tags you can read, edit, and preview in Gravity Forms
- 1mo agoGravityKitLaunch Log: Visual Merge Tags, Elementor widget style settings, and security updates
- 1mo agoNebulav1.11.2 fixes IPv6 MTU on Windows and address discovery on Android
- 2mo agoNebulaIPv6 firewall bypass: unparsed protocols matched TCP/UDP rules
- 3mo agoNebulaBreaking: slog logging, corrected firewall reject/drop direction
- 8mo agoNebulaP256 signature malleability allowed blocklist bypass
- 9mo agoNebulaFix panic in use_system_route_table introduced by the previous release
Frequently asked questions
What is the difference between GravityKit and Nebula?
They serve adjacent needs but don't currently overlap on shipped themes. GravityKit 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 GravityKit better than Nebula?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. GravityKit 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 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 Nebula?
Top Nebula alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Nebula alternatives" section above for the current picks, or visit /alternatives/nebula-networking for the full list with editorial commentary on each.