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Comparison · PM
Backlog vs Leantime
A side-by-side editorial comparison of Backlog and Leantime — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:project-management
Backlog vs Leantime: at a glance
What is Backlog?
Backlog ships steady QoL refinements — Gantt depth, mobile parity, and small workflow polish.
Backlog continues to evolve as a mature project-management tool from Nulab, with most recent activity concentrated on Gantt-chart depth, mobile app modernization, and small workflow ergonomics. The visible changelog signal is incremental — quarterly time scale, group date-range bars on charts, child-issue status filters, redesigned Android client, Markdown on iOS — rather than directional. Several feed entries are navigation scrapes rather than release notes, which dilutes the signal further.
What is Leantime?
Leantime lands a major architecture rebuild, then spends a week stabilizing its API auth
Leantime is working through the aftermath of 3.9.0, a large architectural release that introduced a native permission engine, a JSON-RPC API layer, consolidated 16 canvas variants into a unified Blueprints domain, and added mobile push notifications. The subsequent 3.9.1-3.9.5 train is dominated by fixing Bearer/token authentication regressions that release introduced.
Backlog vs Leantime: editorial side-by-side
Backlog
2.5PM
Backlog ships steady QoL refinements — Gantt depth, mobile parity, and small workflow polish.
◆ Current state
Backlog continues to evolve as a mature project-management tool from Nulab, with most recent activity concentrated on Gantt-chart depth, mobile app modernization, and small workflow ergonomics. The visible changelog signal is incremental — quarterly time scale, group date-range bars on charts, child-issue status filters, redesigned Android client, Markdown on iOS — rather than directional. Several feed entries are navigation scrapes rather than release notes, which dilutes the signal further.
◆ Where it's heading
The product is on a maintenance and polish cadence rather than a category-redefining one. The arc points to closing parity gaps between web and mobile, deepening Gantt features for plan-heavy users, and tightening filtering on the issue list. There is no visible AI or agentic surface yet, which puts Backlog out of step with where the project-management category is heading.
◆ Prediction
Expect more Gantt and reporting refinements plus continued mobile UX work. The category-level pressure for AI features (summaries, agentic task generation) is the most plausible next missing piece, but nothing in these entries signals it is imminent.
Leantime
6.3PM
Leantime lands a major architecture rebuild, then spends a week stabilizing its API auth
◆ Current state
Leantime is working through the aftermath of 3.9.0, a large architectural release that introduced a native permission engine, a JSON-RPC API layer, consolidated 16 canvas variants into a unified Blueprints domain, and added mobile push notifications. The subsequent 3.9.1-3.9.5 train is dominated by fixing Bearer/token authentication regressions that release introduced.
◆ Where it's heading
The open-source PM tool is modernizing its foundation (thin controllers, typed exceptions, fail-closed authorization, Blade migration) to support a mobile app and third-party integrations. The near-term cost is a visible bugfix tail as token-based auth gets hardened path by path.
◆ Prediction
Expect the patch cadence to settle once Bearer-auth coverage stabilizes, with mobile endpoints and the JSON-RPC surface becoming the focus, given the mobile API work threaded through these releases.
Alternatives to Backlog and Leantime
Other PM 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 Backlog or Leantime.
TimeCamp
TimeCamp's feed is competitor-comparison SEO, not product releases — billing beats stopwatch.
Aha!
Aha! pushes from planning into building — roadmaps now compile to working apps
Atlassian
Atlassian threads agentic CI/CD and richer package management through Bitbucket
ProdPad
ProdPad's feed is a sustained argument against dated roadmaps and for Now-Next-Later.
RescueTime
RescueTime's feed is its productivity blog, with no product signal
See all Backlog alternatives → · See all Leantime alternatives →
Recent activity from Backlog and Leantime
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 9d agoLeantimeMobile API endpoints for notifications and calendar; fixes
- 13d agoLeantimeFix cross-project My Work loading and Bearer auth
- 13d agoLeantimeFix Bearer token auth on permission-gated API methods
- 15d agoLeantimeFix route caching and Bearer/PAT authentication
- 15d agoLeantimeFix 3.9.0 Bearer API auth regression
- 15d agoLeantimeNative permission engine, JSON-RPC API and mobile push ⚡
- 2mo agoBacklogBacklogAll-in-one project management
- 2mo agoBacklogCacooReal-time visual collaboration
- 2mo agoBacklogNulab PassEnterprise-grade security
- 3mo agoBacklogFor TeamsDevelopmentUX & DesignProduct ManagementSalesSmall Businesses & StartupsMarketingView all teams
- 3mo agoBacklogFor WorkflowsProject ManagementRemote WorkTask ManagementClient ManagementIssue & Bug TrackingAgile Project ManagementVersion ControlOnline WhiteboardKanbanOnline SlidesGantt ChartEmail ReplacementView all workflows
- 3mo agoBacklogGroups in project and personal charts now have a bar to show the start/end date range, display the number of issues, and show the issue s…
Frequently asked questions
What is the difference between Backlog and Leantime?
Both compete on the same themes — project-management — within PM. Leantime 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 Backlog better than Leantime?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Leantime 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 PM products to evaluate alongside.
What are the best alternatives to Backlog?
Top Backlog alternatives in PM are ranked by recent ship velocity. Browse the "Backlog alternatives" section above for the current picks, or visit /alternatives/backlog for the full list with editorial commentary on each.
What are the best alternatives to Leantime?
Top Leantime alternatives in PM are ranked by recent ship velocity. Browse the "Leantime alternatives" section above for the current picks, or visit /alternatives/leantime for the full list with editorial commentary on each.