Nine

At a glance

• Editor score
  3.0 / 10
• Pricing
  Open source
• Best for
  Very small portfolios needing desktop software
• Paid from
  Free
• Facts checked
  22 Sep 2026

• Where it wins

  • Free, open-source portfolio management for up to nine properties
  • Covers leases, invoicing, maintenance, inspections, and payments
  • Includes backups, encryption, and role-based access controls

• Where it doesn't

  • Limited to portfolios of up to nine residential properties
  • Desktop deployment only on Windows and Linux
  • No stated tenant portal or online rent collection workflow

Our verdict on Nine

Nine is an open-source desktop property management application for landlords, real estate investors, and independent property managers with small residential portfolios. It supports up to nine properties and brings property profiles, tenant and prospect tracking, digital leases, recurring rent invoicing, payment recording, maintenance requests, inspections, notifications, backups, encryption, and role-based access controls into one local application. Its solo and small-business focus makes it a practical fit for self-managed rentals rather than larger property management companies.

The feature set is broad for a small desktop application. Property records can include photos and documents, while lease workflows cover creation, acceptance, renewal, and termination. Maintenance tracking includes vendors and costs, and inspections support scheduling, checklists, and PDF reports. Nine also connects with SendGrid and Twilio for notification-related workflows. Its local SQLite storage, backups, database encryption, and role controls add useful administrative safeguards for a small team, although the product does not offer AI features.

Nine’s main trade-off is its narrow deployment and portfolio scope. It runs on Windows and Linux as desktop software, so it is less suitable for teams that need browser access, mobile workflows, or a broader cloud ecosystem. The payment workflow focuses on recurring invoices and recording payments rather than a stated tenant-facing portal or online rent collection system. Support is available through email and a community, which fits an open-source product but may require more self-direction than a larger commercial platform. Choose Nine for a small, locally managed portfolio; consider another option if you need more than nine properties or tenant-facing online operations.

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Nine pricing

Nine fact sheet

Nine integrations

Nine lists 2 integrations on its own site.

• SendGrid
• Twilio

Alternatives to Nine

• RealPage OneSiteA connected multifamily suite spanning leasing, finance, maintenance, compliance, and automation.9.2
• GuestyA broad short-term rental platform with channel, operations, and owner-management tools.9.0
• RealPage Commercial Property ManagementA focused commercial leasing system for accounting, recoveries, tenant service, and portfolio reporting.8.8

See all Nine alternatives →

Featured on iTechGuides

Nine is listed in our Property Management Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update