Features, use cases, pros and cons, and pricing side by side — and which one to pick.
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: Agencies managing multiple client projects in one workspace, Consultants and solo operators who want a CRM and task tool combined
Read the full Infinity 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.
Infinity packs projects, CRM, and docs into one workspace with 11 views, 20-plus custom field types, and built-in automations. The trade-offs are real: setup takes effort, the cheapest plans stop at one workspace and 15 members, and there's no free trial beyond a 14-day refund window. Overall, it's a solid pick for teams willing to build their own system.
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.
Infinity is a customizable work management platform that combines project management, CRM, dashboards, and team organization in one tool. Agencies, consultants, and growing internal teams use it to track projects, leads, and operations. You shape boards with 20+ custom field types, then view the same data as a table, board, Gantt chart, calendar, or form. There's also Infinity Echo, which lets you launch branded software on top of the platform.
List prices from each vendor's pricing page, before taxes and add-ons. Costs are per month.
| Pricing compared | Backlog by Nulab Inc | Infinity |
|---|---|---|
| From (cheapest paid plan) | $35/mo Starter | $6/mo Basic · per user |
| Free plan | Yes 10 users | No |
| Free trial | Not stated | Not stated |
| Money-back guarantee | Not stated | 14 days |
| Annual billing savings | — | — |
| Pricing model | Flat price | Per-user and flat plans |
| Cost for 1 user | FreeCheaper Free plan, billed annually | $6/mo Basic plan, billed annually |
| Cost for 5 users | FreeCheaper Free plan, billed annually | $30/mo Basic plan, billed annually |
| Cost for 10 users | FreeCheaper Free plan, billed annually | $60/mo Basic plan, billed annually |
| Cost for 25 users | $35/mo Starter plan, billed monthly | $112/mo Unlimited plan, billed annually |
| Plans | 5 | 5 |
| 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 Sep 9, 2026. No price change detected yet. |
For 5 users (billed annually), Backlog by Nulab Inc costs $0/mo vs Infinity at $30/mo.
Computed from published list prices on the dates shown. Excludes taxes, add-ons and promotions.