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Project Online replacement comparison

Onplana vs OnePlan

Two different bets on replacing Microsoft Project Online.

OnePlan and Onplana are two genuinely different bets on what replaces Project Online. OnePlan extends the Microsoft stack via Power Platform — strong if your organisation is committed to Microsoft as a platform. Onplana is a clean break — AI-native, cloud-agnostic, transparent pricing, free tier. Neither is wrong; the right answer depends on whether your strategic direction is "stay deep in Microsoft" or "decouple from Microsoft platform decisions."

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Why this comparison exists

OnePlan operates the project-online.com domain as a marketing surface, positioning OnePlan as the official Project Online successor. If you arrived here from a "Project Online replacement" search, there's a real chance OnePlan was the first thing you saw.

We're not going to pretend that's not happening. Instead, this page gives you a side-by-side read of where each tool actually fits, sourced from public documentation and product specs, not marketing copy.

The architectural difference, in one paragraph

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

OnePlan

Power Platform–tenanted. OnePlan deploys inside your existing Microsoft Dataverse tenant. It uses Power Apps for UI, Power Automate for workflow, and Dataverse for data — your Microsoft Power Platform admin provisions and configures it.

Strong for orgs already deep in Power Platform with admin skills in-house. Less suited if you're not committed to Microsoft as a platform direction.

Onplana

Multi-tenant SaaS, cloud-agnostic. Onplana runs as a hosted service. ENTERPRISE_PLUS customers can self-host on any cloud (AWS, Azure, GCP) or on-prem. 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 Power Platform investment.

Feature-by-feature comparison

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

Capability
OnePlan
Power Platform–tenanted
Onplana
Cloud-agnostic SaaS
Hosting model
Power Platform–tenanted (Microsoft Dataverse)
Multi-tenant SaaS, cloud-agnostic (AWS/Azure/GCP/self-host)
Microsoft 365 integration
Native via Power Platform
SAML/OIDC SSO + Microsoft consumer SSO + Graph integrations
AI architecture
Microsoft Copilot (Power Platform)
Claude (Anthropic) + Azure OpenAI, admin-switchable per workload
Time to first project
Weeks (Power Platform setup + per-tenant config)
Minutes (sign up, import .mpp, project ready)
.mpp / MSPDI fidelity
Imports — depth varies by config
Native MPXJ-based parser; preserves all 4 dep types, ECFs, baselines, calendars
Free starter tier
No (sales-led only)
✓ Free plan with full Gantt + critical path
Pricing transparency
Quote-based
Public per-seat pricing, $0/$7/$12/$20/$29 across 5 tiers
Stage-gate governance
✓ Power Platform–driven workflows
✓ Built-in 12-stage pipeline + multi-reviewer gates
Resource pool / portfolio
✓ Power Platform integration
✓ Native (org-wide pool, RAG portfolio rollups)
On-prem / self-host
Power Platform constraints
ENTERPRISE_PLUS self-host (any cloud or on-prem)
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 CIO has standardised on Microsoft Power Platform and your admins fluent in Dataverse.
  • •You want governance workflows tightly coupled to Power Automate and the rest of your M365 automation surface.
  • •You value Microsoft platform continuity over decoupling, and the longer Power Platform implementation cycle is acceptable.
  • •You're comfortable with sales-led procurement and quote-based pricing.

When Onplana fits

  • •You want PM tooling that doesn't lock you to one cloud or one vendor's platform decisions.
  • •You want a free starting tier and transparent per-seat pricing before committing budget.
  • •You want admin-switchable AI providers (Claude, Azure OpenAI) per workload, not one Microsoft-locked default.
  • •You need a sub-week time-to-first-project, not a multi-week Power Platform tenant configuration cycle.
  • •You have .mpp files to import and want native MPXJ-based fidelity preserving all four dependency types, ECFs, baselines, and calendars.

Test the comparison with your own data

Two free tools, no signup — and a third that estimates 3-year migration cost.

Migration Preview

Upload a .mpp; see exactly what would land in Onplana.

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Migration Cost Calculator

Estimate full 3-year migration cost (licenses, parallel running, training).

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PMO Maturity Assessment

15-question diagnostic on whether your org needs governance-heavy or governance-light tooling.

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Frequently asked questions

Does OnePlan really own project-online.com?▾
Yes. OnePlan acquired and operates the project-online.com domain as a marketing surface positioning OnePlan as the official Project Online successor. We acknowledge that's a strong domain-capture play. It doesn't change the underlying product question — which platform actually fits your team — but it does mean you'll see OnePlan branding when searching for Project Online migration content, even if you weren't specifically evaluating them.
If we're committed to Microsoft 365, does OnePlan win automatically?▾
Not automatically. Power Platform–tenanted deployments work well when your team already has Power Platform skills in-house (Power Apps, Power Automate, Dataverse). If you don't, the implementation overhead can be larger than expected. Onplana integrates with M365 via standard SAML/OIDC SSO and Microsoft Graph for calendar/Teams integrations — different posture, lower implementation cost, less Microsoft lock-in.
Both have stage-gate governance — what's the actual difference?▾
OnePlan implements gates via Power Automate workflows on top of Dataverse. Onplana ships a built-in 12-stage proposal pipeline (DRAFT → SUBMITTED → ASSESSMENT → ... → COMPLETED) with designated multi-reviewer gates and quorum logic. Both are real governance. OnePlan is more configurable; Onplana is more opinionated and faster to stand up.
What about pricing — neither shows public per-PMO pricing?▾
OnePlan is quote-based with no public pricing. Onplana publishes per-seat pricing across five tiers ($0 / $7 / $12 / $20 / $29) — 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, you'll typically need a sales call and a Power Platform tenant to be configured first. 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 the cloud-agnostic posture fits.

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