Features, use cases, pros and cons, and pricing side by side — and which one to pick.
Quick verdict: Pick Backlog by Nulab Inc if you want easy, flat-rate project management; pick Splunk if you're securing and monitoring machine data at enterprise scale.
Best for: Software teams that want issue tracking and code hosting under one roof, Agile teams that plan with Kanban boards or Gantt charts
Read the full Backlog by Nulab Inc reviewBest for: Enterprise security teams (SOCs) that need SIEM, SOAR, and UEBA in one place, IT and SRE teams monitoring apps across cloud, containers, and on-prem
Read the full Splunk reviewCommission may apply at no extra cost
Compare key features side by side
Feature Comparison Summary
Backlog bundles task tracking, Gantt and Kanban views, docs, and built-in Git and SVN behind flat-rate pricing that never climbs with headcount. The AI Assistant, unlimited Gantt views, and enterprise SSO sit on pricier tiers, though, and storage caps run tight. Overall, it's a solid pick for growing teams that want projects and code on one predictable bill.
Splunk unifies petabytes of machine data for security, IT, and AI agent monitoring, with strong customer results like Specsavers' 10x faster MTTR. But its core products hide pricing behind custom quotes, and teams need skilled staff to run it well. Overall, it's a proven enterprise pick if you can absorb the cost and complexity.
Backlog is a project management platform from Nulab Inc. It combines task tracking, Agile boards, Gantt charts, bug tracking, and team documentation in one tool.
Developers can manage Git and SVN code without leaving the app, and an AI assistant summarizes updates and drafts documents. Nulab says more than 4 million users worldwide rely on it.
Splunk is a data platform that unifies machine data at petabyte scale across security, observability, and networking. Now part of Cisco, it serves enterprises in finance, healthcare, government, retail, and more.
Security teams use it to detect and respond to threats. IT teams use it to monitor apps and infrastructure.
List prices from each vendor's pricing page, before taxes and add-ons. Costs are per month.
| Pricing compared | Backlog by Nulab Inc | Splunk |
|---|---|---|
| From (cheapest paid plan) | $35/mo Starter | $5/mo Splunk On-Call · per user |
| Free plan | Yes 10 users | No |
| Free trial | Not stated | Yes |
| Money-back guarantee | Not stated | Not stated |
| Annual billing savings | — | — |
| Pricing model | Flat price | Per-user and flat plans |
| Cost for 1 user | FreeCheaper Free plan, billed annually | $5/mo Splunk On-Call plan, billed annually |
| Cost for 5 users | FreeCheaper Free plan, billed annually | $25/mo Splunk On-Call plan, billed annually |
| Cost for 10 users | FreeCheaper Free plan, billed annually | $50/mo Splunk On-Call plan, billed annually |
| Cost for 25 users | $35/mo Starter plan, billed monthly | $375/mo Splunk Observability Cloud – Infrastructure plan, billed annually |
| Plans | 5 | 10 |
| Prices checked | Checked Oct 13, 2026 | Checked Oct 13, 2026 |
| Price history | Tracking prices since Sep 9, 2026. No price change detected yet. | Tracking prices since Oct 1, 2026. No price change detected yet. |
For 5 users (billed annually), Backlog by Nulab Inc costs $0/mo vs Splunk at $25/mo.
Computed from published list prices on the dates shown. Excludes taxes, add-ons and promotions.
Backlog skips timed trials but offers a free forever plan for 10 users. Splunk provides free trials and a free Observability Cloud edition across most products.
No. Backlog manages projects, tasks, and code for growing teams. Splunk searches machine data for security and observability at enterprise scale—they solve different problems.