OnePlan vs OpenProject: Complete Comparison (2026)
An in-depth comparison of OnePlan and OpenProject to help you choose the right tool for your business.
Last updated: November 2026
OnePlan
7/10
OnePlan is a strategic portfolio and work management platform built on the Microsoft cloud for PMOs and enterprises that manage projects, resources, and budgets.
OpenProject
6.7/10
Open source project management software for classic, agile and hybrid teams, available self-hosted for free or as an EU-hosted paid cloud.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 7/10 | 6.7/10 |
| Analytics | 8/10 | 6/10 |
| Cost | 5/10 | 8/10 |
| Customization | 8/10 | 8/10 |
| Ease of Use | 5/10 | 5/10 |
| Integration | 9/10 | 5/10 |
| Scalability | 8/10 | 7/10 |
| Security | 7/10 | 9/10 |
| Support | 7/10 | 6/10 |
| Pricing | ||
| Free plan | No | Yes |
| Cheapest paid plan | $10/user/mo Basic | €6/user/mo Basic |
| Estimated cost for 10 users | $100/mo Basic | Free Community |
| Features | ||
| App integrations | ||
| Collaboration tools | ||
| Dashboards | ||
| Kanban boards | ||
| Reporting | ||
| Task management | ||
| Time tracking | ||
| Timeline view | ||
| Docs | Not listed | |
| File sharing | Not listed | |
| Gantt charts | Not listed | |
| Knowledge base | Not listed | |
| Task lists | Not listed | |
| Workflow automation | Not listed | |
OnePlan vs OpenProject cost by team size
| Team size | OnePlan | OpenProject |
|---|---|---|
| 1 user | $50/moBasic | FreeCommunity |
| 5 users | $50/moBasic | FreeCommunity |
| 10 users | $100/moBasic | FreeCommunity |
| 25 users | $250/moBasic | FreeCommunity |
| 50 users | $500/moBasic | FreeCommunity |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose OnePlan
- Higher Integration score (9/10 vs 5/10)
- Higher Analytics score (8/10 vs 6/10)
Why choose OpenProject
- Has a free plan (OnePlan does not)
- Higher Cost score (8/10 vs 5/10)
- Higher Security score (9/10 vs 7/10)
- Better fit for small business (5/10 vs 3/10)
- Better fit for developers (6/10 vs 4/10)
Pros & Cons
OnePlan
Pros
- The integration catalog lists more than 40 connectors, covering Microsoft Project, Planner, Azure DevOps, Jira, Smartsheet, Workday, and SAP.
- Reviewers praise how configurable the workflows and templates are, which suits PMOs whose processes keep changing.
- Capacity and resource planning with utilization views is a widely cited strength.
- Viewing OnePlan OData in Power BI does not require a OnePlan license, which lowers the cost of sharing reports.
- The Basic entry price of 10 dollars per user per month is low for portfolio software.
Cons
- Roadmaps, resource and financial planning, scenarios, automation, and audit logs are Enterprise-only, and Enterprise has no public price.
- Reviewers report final quotes well above what they first expected.
- Setup and configuration have a learning curve, and onboarding can be slow.
- Advanced report layouts often need extra Power BI work.
- Basic is billed annually only and requires at least five users.
OpenProject
Pros
- The free self-hosted Community edition is GPLv3 open source and shares one codebase with the paid editions.
- It hosts cloud data in the EU, encrypts it with AES-256 at rest, and offers a signable GDPR data processing agreement.
- It supports classic Gantt planning and agile boards and backlogs in the same tool.
- Time and cost tracking with budget reports is built in.
- Long contract terms carry large discounts, for example fifteen months free on a five-year term.
Cons
- Paid plans require at least 25 users, and Premium requires 100.
- Several Reddit users report that self-hosted installation is hard, and some find the tool too elaborate for simple needs.
- Slack, Toggl and Mattermost connections are unsupported community plugins.
- Reviewers say the interface is less polished than tools like Asana, and that resource and workload management is weak.
- Many features, including SSO and portfolio management, require paid Enterprise tiers.
Not sold on either?
Frequently Asked Questions
OnePlan scores higher on our Project Management criteria: 7/10 against 6.7/10 for OpenProject. The largest gap is in Integration: 9/10 for OnePlan and 5/10 for OpenProject.
OpenProject has a free plan; OnePlan does not list one.
OpenProject is the better fit for developers: we rate it 6/10 for them, against 4/10 for OnePlan.
