Microsoft Project alternative comparison

Onplana vs OnePlan

Two different bets on PMO tooling for Microsoft 365 teams.

OnePlan and Onplana are two genuinely different bets on portfolio and project management. OnePlan is built on the Microsoft cloud and runs inside Teams, Azure DevOps and SharePoint, strong if your organisation is committed to Microsoft as a platform. Onplana is a standalone platform, AI-native, with a published price on every self-serve plan and a free plan with the full Gantt. Neither is wrong; the right answer depends on whether your strategic direction is "stay deep in Microsoft" or "decouple from Microsoft platform decisions."

The architectural difference, in one paragraph

Both extend project-management capabilities. They sit in fundamentally different places in your stack.

OnePlan

Built on the Microsoft cloud. OnePlan describes itself as built on the Microsoft cloud. It installs into Microsoft Teams, Azure DevOps and SharePoint, and connects to Planner, Project desktop, Power BI and Power Apps.

Strong for orgs already deep in Microsoft 365 that want portfolio management inside the tools their teams use. Less suited if you're not committed to Microsoft as a platform direction.

Onplana

Multi-tenant SaaS. Onplana runs as a hosted service. On Enterprise+, Onplana sets up and runs a private copy in your own Azure subscription. M365 integrates via standard SAML/OIDC SSO and Microsoft Graph, no Power Platform required.

Strong for orgs that want to decouple from Microsoft platform decisions, or for greenfield PMOs without existing Microsoft 365 PPM investment.

What a Microsoft Project file brings across

Most comparisons stop at features. The question that decides your timeline is what comes across, what gets rebuilt, and who has to be available for it.

What you are moving
Into OnePlan
Into Onplana
Schedules (.mpp / MSPDI)Connected from Project Desktop through OnePlan's Office add-in; Microsoft Project Integration is on its Enterprise plan.Parsed natively. All four dependency types with lag, costs and percent-complete carry over.
Resource poolNot stated on its pages.Matched by email address. Unmatched people surface as warnings rather than being silently created as users.
Enterprise custom fieldsNot stated on its pages.Become custom field definitions, with their per-task values attached.
Actuals and timesheetsTimesheets are in Basic; importing actuals is not stated.Deliberately not imported. Microsoft Project ActualCost is frequently stale, so Onplana rebuilds actuals from timesheets against rate cards instead of inheriting a number nobody trusts.
Project sites and documentsSharePoint stays where it is; OnePlan can run within SharePoint.SharePoint stays where it is. Link or attach it into the project workspace.
Workflows and stage gatesRebuilt as workflows and automations, on its Enterprise plan.Rebuilt in the built-in 12-stage pipeline.

Some of it will be rebuilt wherever you land

Custom workflows, project site permissions, resource plans and reports built in your old tool have no portable form. They are re-authored on the destination platform, whichever one you pick. That work is where migration estimates usually go wrong, so it is worth scoping before you choose a tool rather than after. The FAQ below lists the specific cases.

What the import actually looks like

Your Microsoft Project plan, imported and mapped

Both products connect to Microsoft Project files, so the honest question is what the import does. This is the wizard: .mpp or MSPDI XML, with dependencies, custom fields and costs mapped before you commit to anything.

.mpp, Project XML, XER, Excel and CSV, mapped before you commit.

Feature-by-feature comparison

Where one platform leads, we mark it. Where they're at parity, we mark a tie.

Capability
OnePlan
Built on the Microsoft cloud
Onplana
Standalone SaaS
Hosting model
"Built on the Microsoft cloud"; installs into Teams, Azure DevOps and SharePoint
Hosted multi-tenant SaaS; a dedicated deployment in your own Azure subscription (Enterprise+)
Microsoft 365 integration
Runs inside Teams; Planner, Project desktop, Power BI and Power Apps connectors
SAML/OIDC SSO + Microsoft consumer SSO + Graph integrations
AI architecture
Sofia AI, its embedded assistant
Claude (Anthropic) + Azure OpenAI, both disclosed with operator-managed failover
Time to first project
Not stated; a free trial sign-up is offered
Minutes (sign up, import .mpp, project ready)
.mpp / MSPDI fidelity
An Office add-in connects Project Desktop .mpp files (Enterprise)
Native MPXJ-based parser; preserves all 4 dep types, ECFs, costs
Desktop app that opens .mpp files
Not offered
Onplana Schedule: free Windows and Mac app, opens, edits and reschedules, saves back to Project XML
Free starter tier
OnePlan Free: My Work and Teams collaboration; the Work Plan and portfolio on paid plans
✓ Free plan with full Gantt + critical path
Trial of a paid plan
A free trial, no credit card required
Some Free workspaces are offered a 14-day trial of a paid plan in the app, with no card
Pricing transparency
Basic $10 a user a month billed yearly (5+ users); Enterprise on a quote (pricing page, 3 November 2026)
Public per-seat pricing across 4 self-serve plans: Free, $12, $20 and $29 per seat a month
Stage-gate governance
✓ Workflow and automations (Enterprise)
✓ Built-in 12-stage proposal pipeline, multi-reviewer gates and an audit trail, on the Enterprise plan and up
Tasks shorter than a day
Task durations, unit not stated on its Work Plan page (31 October 2026)
Onplana Schedule plans to the minute (type 2h or 90m); the web app schedules in whole working days
Phone and tablet apps
An Android app on Google Play
Onplana Tasks on iPhone, iPad and Android phones and tablets; Onplana Schedule from the Microsoft Store, the Mac App Store, the App Store and Google Play. All free.
Capacity / portfolio
✓ Portfolio Plan, and a Resource Plan on Enterprise
✓ Native (capacity across projects, RAG portfolio rollups)
Sourced from public product documentation. "Tie" indicates rough parity; deeper buyer fit depends on existing platform investment.

Which one fits your team?

When OnePlan fits

  • •Your organisation has standardised on Microsoft 365 and wants portfolio management inside Teams, Azure DevOps and SharePoint.
  • •You want portfolio, resource and financial plans alongside Planner, Project desktop and Power BI.
  • •You value Microsoft platform continuity over decoupling.
  • •You're comfortable with a quote for the Enterprise plan, where resource and financial planning sit.

When Onplana fits

  • •You want PM tooling that doesn't tie you to one vendor's platform decisions.
  • •You want a free starting tier and transparent per-seat pricing before committing budget.
  • •You want a dual-provider AI engine (Claude, Azure OpenAI), both disclosed, one on standby, not one Microsoft-locked default.
  • •You want a first project the day you sign up, with no add-in or tenant setup.
  • •You have .mpp files to import and want native MPXJ-based fidelity preserving all four dependency types, ECFs and costs.

Frequently asked questions

How do you bring Microsoft Project plans into OnePlan?▾
Through Project desktop. OnePlan's integrations page describes an Office add-in for Microsoft Project Desktop that connects your .mpp files to OnePlan, and its pricing page lists Microsoft Project Integration on the Enterprise plan. So the plan stays in Project desktop and OnePlan reads it from there. Onplana sits at the other end of that trade: you sign up, upload a .mpp, and the schedule is there, on every plan including Free, at the cost of not living inside your Microsoft 365 tools.
What in a set of Microsoft Project plans does not move cleanly to anything?▾
Some things are tool-bound and will be rebuilt wherever you land. Custom workflows are the clearest case: they have no portable form, so they are re-authored in OnePlan's workflows or in Onplana's stage-gate pipeline. Project site content and its permission inheritance is a SharePoint concern and usually stays in SharePoint. Timephased actuals and ActualCost are technically exportable but often stale, which is why Onplana rebuilds actuals from timesheets rather than importing a figure that may never have been reconciled. Resource plans and reports built in your old tool also need rebuilding. Knowing this list up front is worth more than any feature comparison, because it is where migration estimates actually go wrong.
How quickly can we evaluate both?▾
The evaluation itself is not the slow part. Running a genuine parallel pilot on one real .mpp will tell you more in an afternoon than a feature matrix will. Both let you start without a card: Onplana's Free plan and OnePlan's free trial. What differs is what the start includes: Onplana's Free plan has the Gantt, critical path and .mpp import, while OnePlan's Microsoft Project integration and resource plan are on its Enterprise plan, priced on a quote, so that part of a pilot starts with a sales conversation. Start the one with the longer lead time earlier, and use the other to sanity-check it rather than waiting to run them in series.
If we're committed to Microsoft 365, does OnePlan win automatically?▾
Not automatically. OnePlan runs inside Teams, Azure DevOps and SharePoint and connects to Planner, Project desktop, Power BI and Power Apps, which is a real advantage when your teams already live there. Onplana integrates with M365 via standard SAML/OIDC SSO and Microsoft Graph for calendar/Teams integrations, different posture, less embedded, less Microsoft lock-in.
Both have stage-gate governance, what's the actual difference?▾
OnePlan lists workflow and automations on its Enterprise plan. Onplana ships a built-in 12-stage proposal pipeline (DRAFT → SUBMITTED → PROPOSAL_REVIEW → BUSINESS_CASE → ... → COMPLETED) with designated multi-reviewer gates and quorum logic. Both are real governance. OnePlan's is configured as workflows; Onplana's is more opinionated and faster to stand up.
What about pricing?▾
OnePlan publishes its Basic plan at $10 a user a month billed yearly, from 5 users, and prices Enterprise on a quote, per its pricing page on 3 November 2026. Onplana publishes per-seat pricing across 4 self-serve plans (Free, $12, $20 and $29 per seat a month), what you see is what you pay. For PMOs that need budget approval before starting an evaluation, that matters; for PMOs comfortable with sales-led procurement, it's a non-issue.
Can we run a 4-week pilot of each?▾
With Onplana, yes, sign up free, import a real .mpp, run a parallel pilot. With OnePlan, the free trial gets you started, and the Enterprise features a schedule-heavy pilot needs (Microsoft Project integration, the resource plan) come with a quote. That's not a bug, sales-led platforms run that way for a reason, it's just a different cycle time.

Try Onplana before you decide

Free plan, no credit card, no sales call. Sign up, import a real .mpp, see whether a standalone platform fits.