Harbor
Harbor's patch train is now mostly about undoing regressions from its own security hardening.
Comparison · Infra & APIs
Drone vs Retool
A side-by-side editorial comparison of Drone and Retool — release velocity, themes, recent moves, and the top alternatives to consider.
Drone vs Retool: at a glance
What is Drone?
Drone's source now ships as Harness Open Source, and it last released in August 2025.
Both tracked releases are tagged Harness Open Source from the harness/harness repo, which is where Drone's code now lives. v3.2.0 added Git LFS, PR revert, retargeting and Code Owner auto-assignment; v3.3.0 added favorite repos, tag protection rules and a fix for a Git LFS path-traversal issue. Nothing has shipped since August 2025.
What is Retool?
Retool's agent is wiring backends now; the self-hosted release trains keep rolling underneath.
Retool's visible product work is concentrated on its app-building agent, which can now create Postgres and REST API resources from a prompt, and on day-one model support (Claude Opus 5.5, GPT 6 Luna/Sol, GPT Image 2.5). Team-plan orgs can use Retool-provided models without their own keys, and embedded apps gained custom authentication. Underneath, self-hosted customers get stable patch drops almost daily, the latest covering both 4.34 and the long-lived 4.0 line on October 8, plus an Edge cut at 4.70.
Drone vs Retool: editorial side-by-side
Drone
0.0INFRA · APIS
Drone's source now ships as Harness Open Source, and it last released in August 2025.
◆ Current state
Both tracked releases are tagged Harness Open Source from the harness/harness repo, which is where Drone's code now lives. v3.2.0 added Git LFS, PR revert, retargeting and Code Owner auto-assignment; v3.3.0 added favorite repos, tag protection rules and a fix for a Git LFS path-traversal issue. Nothing has shipped since August 2025.
◆ Where it's heading
The product has moved from a CI engine toward a full code-hosting platform with PR workflows and branch/tag governance. The 14-month gap since v3.3.0 points to slow or paused open-source releases.
◆ Prediction
The entries give no sign of a next release; another quiet period is the base case.
Retool
7.5INFRA · APIS
Retool's agent is wiring backends now; the self-hosted release trains keep rolling underneath.
◆ Current state
Retool's visible product work is concentrated on its app-building agent, which can now create Postgres and REST API resources from a prompt, and on day-one model support (Claude Opus 5.5, GPT 6 Luna/Sol, GPT Image 2.5). Team-plan orgs can use Retool-provided models without their own keys, and embedded apps gained custom authentication. Underneath, self-hosted customers get stable patch drops almost daily, the latest covering both 4.34 and the long-lived 4.0 line on October 8, plus an Edge cut at 4.70.
◆ Where it's heading
The direction is agent-first app building: the agent has moved from laying out screens to provisioning data sources, and bundled models on Team remove the setup step that kept teams from trying it. Custom auth for embeds pushes the other way, toward Retool apps living inside customers' own products. Self-hosted keeps a dual-channel cadence, with stable patches for 4.34 and 4.0 and Edge every week or so, so cloud features reach on-prem with a lag.
◆ Prediction
Expect the agent to provision more resource types beyond Postgres and REST, and a 4.35 or later stable line to pick up the Edge work now landing in 4.70.
Alternatives to Drone and Retool
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 Drone or Retool.
Tyk
Tyk is in maintenance mode on four release lines at once, with 5.16 barely stirring.
GitHub
GitHub is building an identity trail around agent-era code: who pushed, who prompted, who pays.
werf
werf exposes git provenance to build commands and auto-includes Git LFS content.
Infisical
Infisical puts secret changes on its global approval system and splits out secret scanning.
Apache Airflow
Airflow's feed right now is a wall of provider release candidates, not core changes.
See all Drone alternatives → · See all Retool alternatives →
Recent activity from Drone and Retool
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4d agoRetoolSelf-hosted Retool 4.34 and 4.0 stable updates
- 5d agoRetoolSelf-hosted Retool 4.34 stable updates
- 5d agoRetoolRetool 4.70 Edge for self-hosted instances
- 6d agoRetoolCustom authentication for embedded apps
- 10d agoRetoolNew OpenAI models available in Retool
- 10d agoRetoolCreate PostgreSQL and REST API resources with natural language
- 1y agoDronev3.3.0 | Harness Open Source
- 1y agoDronev3.2.0 | Harness Open Source
Frequently asked questions
What is the difference between Drone and Retool?
They serve adjacent needs but don't currently overlap on shipped themes. Retool is currently shipping more aggressively (velocity 7.5 vs 0.0), 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 Drone better than Retool?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Retool is currently shipping more aggressively (velocity 7.5 vs 0.0), 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 Drone?
Top Drone alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Drone alternatives" section above for the current picks, or visit /alternatives/drone for the full list with editorial commentary on each.
What are the best alternatives to Retool?
Top Retool alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Retool alternatives" section above for the current picks, or visit /alternatives/retool for the full list with editorial commentary on each.