Onplana vs Microsoft Planner: Feature-by-Feature for PMOs in 2026

When Microsoft pointed Project Online customers toward "the new Planner" as their retirement path, it framed a simple product decision as an obvious default. PMOs that accepted that framing and started migration assessments quickly found themselves in a detailed comparison they weren't expecting: Planner Premium is a real product improvement for simple teams, but for PMOs with complex scheduling requirements, unlimited custom fields, shared resource pools, or stage-gate governance needs, the gap between what Planner offers and what their Project Online instance actually does is substantial.

This post is that comparison (Onplana vs Microsoft Planner, feature by feature) for PMOs who are past the "what tool should we use?" stage and need the actual numbers.

TL;DR. Onplana: no task cap, unlimited typed custom fields, all four dependency types (FS/SS/FF/SF + lag), enterprise resource pool, 12-stage governance, native .mpp import, built-in AI (no extra license), pricing from $0 to $29/user/month. Microsoft Planner Premium: 3,000-task cap per project, 10 custom fields, FS-only dependencies, no resource pool, no governance pipeline, no .mpp import, Copilot AI requires a separate M365 Copilot license, bundled in existing M365 plans. If your Project Online workload is complex, the functional gaps in Planner Premium are not bridgeable with workarounds.

Why This Comparison Exists

Microsoft Planner Premium is built on the scheduling layer previously called Project for the Web, which was designed as a lightweight cloud-native PM tool for teams that don't need enterprise-grade scheduling. Project Online was built as an enterprise PPM system for PMOs that do need it: shared resource pools, earned value tracking, governance workflows, portfolio analytics. Those are different products solving different problems.

The confusion arises because Microsoft positioned Planner Premium as the standard retirement path for all Project Online customers, regardless of how they were actually using Project Online. For teams that used Project Online primarily as an enhanced task tracker (task assignment, basic due dates, simple Gantt visibility), the move to Planner Premium is reasonable. For PMOs that used the full feature set (custom enterprise fields, 11 baselines per project, portfolio analyzer, enterprise resource pool, EPT-based governance workflows), Planner Premium represents a significant capability reduction.

The detail on why Planner Premium specifically falls short for enterprise PMOs is in Why Microsoft Planner Premium Falls Short for Enterprise PMOs. This post focuses on what Onplana offers where Planner Premium has limits or gaps.

Onplana vs Microsoft Planner: Full Feature Comparison

The table below covers the dimensions that drive the most migration decision-making.

Dimension	Onplana	Microsoft Planner Premium
Tasks per project	No cap	3,000 (hard cap, silent drop)
Dependency types	FS / SS / FF / SF + lag	FS only, no lag
Custom fields per project	Unlimited (typed)	10 flat fields
Multi-select + lookup fields	Yes (MULTI_SELECT, hierarchical tags)	No
Enterprise resource pool	Yes (shared across all projects)	No
Capacity planning	Yes	No
Cost rate tables	Yes (A–E, date-tiered)	No
Timesheets + approvals	Yes	No
Stage-gate governance	Yes (12 stages, ENTERPRISE+)	No
Portfolio rollups	Yes (BUSINESS+)	No
Baselines per project	Unlimited named snapshots	None
Critical path calculation	Yes	No
.mpp import from Project Online	Native (full fidelity)	Not supported
OData feed import (whole tenant)	Yes	No
AI assistance	Claude + Azure OpenAI (built-in)	Copilot (separate M365 license)
Free tier	Yes (1 project, no card)	Bundled in M365
Paid entry point	$10/user/month (PRO, annual)	Project Plan 1 ($10/user/month)
Self-hosted deployment	Yes (Docker, K8s, AWS/Azure/GCP)	No
Real-time collaboration	Yes (WebSocket)	Limited (Dataverse sync)

The diagram below positions these differences visually across the dimensions that matter most for a PMO migration decision.

Scheduling and Gantt: Where the Onplana vs Microsoft Planner Gap Is Widest

The Gantt chart is where the comparison is most concrete and most consequential for PMOs migrating off Project Online.

Onplana's Gantt supports all four dependency types (FS, SS, FF, SF) plus lag values on each, computes the critical path continuously as tasks change, and renders baselines as phantom rows inside the Gantt bar itself, so schedule drift is visible without a mode switch. Tasks moved in Kanban view update the Gantt instantly. Resource leveling runs with a preview before applying.

Planner Premium's Gantt is finish-to-start only with no lag values. Critical path is not computed. Baselines do not exist. The Gantt view updates when tasks change, but only the task bar positions. There is no baseline overlay because there are no baselines to overlay.

For a PMO whose work lives in dependency-heavy schedules (programs with parallel workstreams, testing phases that start before design finishes, integration tracks running SS against infrastructure tracks), the Planner Premium Gantt is a visual planner, not a scheduling engine.

Custom Fields and Data Model: Unlimited vs. Ten

Enterprise custom fields are the classification backbone of a PMO's portfolio. They carry the portfolio dimensions that show up in every executive report: program alignment, risk tier, cost center, regulatory status, gate decision, strategic priority score.

Onplana supports unlimited custom field definitions per project and per tenant, across seven typed field categories: text, number, cost, date, checkbox, dropdown (single-select lookup), and multi-select lookup. Hierarchical lookup tables, parent-child tag trees, are supported natively. Custom field definitions attach to projects, tasks, or resources.

Planner Premium supports 10 custom fields per plan, in five non-typed formats: text, date, number, yes/no, single-choice. There are no multi-select fields, no lookup tables with parent-child relationships, and no calculated fields. The 10-field ceiling applies per plan, not per tenant; adding a new plan does not give you 10 more fields to share with the previous plan's classification scheme.

For a PMO that has built 40 custom fields in Project Online over six years (some flat, some multi-value, some hierarchical), moving to Planner Premium means either abandoning 30 fields or rebuilding the classification architecture from scratch in a system that architecturally cannot replicate it.

Resource Management: Enterprise Pool vs. Per-Project Assignment

Onplana maintains a tenant-wide resource pool. Each person in the organization is one entity, shared across all projects. You see their total allocation across programs, their cost rate table (A–E, date-tiered for rate changes over time), their working calendar, and their per-project assignment history in a single view. When resource A is committed at 60% to Program Alpha and 80% to Program Beta, the resource heatmap surfaces that over-allocation automatically.

Planner Premium has no equivalent. Resources are per-project members with no cross-project visibility. Capacity planning, utilization reporting, cost rate modeling, and timesheet actuals are not available. A PMO managing shared resources across concurrent programs has no native mechanism in Planner Premium for catching over-allocation before it becomes a delivery problem.

Stage-Gate Governance: First-Class vs. Absent

Onplana's governance pipeline (available on the ENTERPRISE+ plan) walks projects through 12 defined stages (from DRAFT through PROPOSAL_REVIEW, BUSINESS_CASE_REVIEW, PLAN_REVIEW, EXECUTION, and eventually COMPLETED or REJECTED) with multi-reviewer quorum logic at each gate. A single reviewer rejection holds the project at that gate; unanimous approval advances it. Audit trail entries are created at every gate decision. Projects can be automatically created from approved proposals, keeping the governance record and the delivery record connected.

Planner Premium has no proposal workflow, no stage gates, and no governance pipeline. Change control, demand management, and formal project intake require either a separate tool or a custom Power Automate / Power Apps build.

AI: Architecture Matters More Than Feature Count

Onplana ships AI as part of the core product, not as a bolt-on. The AI engine (running Claude by Anthropic and Azure OpenAI, configurable per tenant) handles plan generation from a paragraph brief, background risk detection on running projects, natural-language task parsing ("schedule the design review for next Tuesday at 2pm"), status report generation from milestone state, and an AI Project Kickstart that turns a one-paragraph project description into a structured task tree with subtasks and risks. None of these require a separate AI license. The per-org AI cost ledger is visible to admins, with optional caps.

Planner Premium integrates Microsoft Copilot, which provides task summarization, basic suggestions, and conversational task creation inside the Planner interface. Copilot requires a separate Microsoft 365 Copilot license ($30/user/month on top of base M365). The AI capabilities in Copilot are general-purpose; they are not grounded in your project's schedule, dependencies, or risk history the way Onplana's AI is.

Pricing: What You Pay at PMO Scale

Planner Premium's pricing depends on how you access it. It is included in Microsoft 365 Business Premium and in Project Plan 1 ($10/user/month), Plan 3 (formerly Project Online Professional, $30/user/month), and Plan 5 (formerly Project Online Premium, $55/user/month). If your team already holds M365 Business Premium or Project Plan licenses, the incremental cost of Planner Premium is zero. If you are buying Project Plan 3 specifically to get Planner Premium, you are paying $30/user/month for a product with the feature set described above.

Onplana's pricing runs from a free tier (one project, full feature set, no card) through PRO ($10/user/month annual, Gantt, sprints, custom fields, AI, time tracking), BUSINESS ($16/user/month annual, advanced AI, portfolios, resource management, integrations, cross-project reports), and ENTERPRISE ($23/user/month annual, governance, SSO, SCIM, audit logs, IP allowlist, change control). For a 50-seat PMO on Project Plan 3 ($30 × 50 = $1,500/month), moving to Onplana BUSINESS annual ($16 × 50 = $800/month) saves roughly $8,400 per year on license alone, while gaining the PMO-grade capabilities Planner Premium doesn't offer.

For the three-year total cost including migration labor and integration rework, the free Migration Cost Calculator produces a downloadable scenario model for the CFO conversation.

When to Choose Planner; When to Choose Onplana

Choose Planner Premium if:

• Your team is migrating off basic Planner or Microsoft To Do, not off Project Online
• Projects stay under 3,000 tasks with simple sequential dependency structures
• No project relies on enterprise resource management, stage-gate governance, or earned value tracking
• Your team lives natively inside Microsoft Teams, and the embedded Planner experience is more valuable than additional scheduling capabilities
• Your M365 licenses already include Planner Premium at zero incremental cost and the capabilities fit your actual workload

Choose Onplana if:

• You are migrating off Project Online and need feature parity for complex schedules (FS/SS/FF/SF, baselines, critical path, custom fields at scale)
• Your PMO manages shared resources across concurrent programs and needs cross-project capacity visibility
• Stage-gate governance, change control, or formal demand management pipelines are part of your operating model
• You need .mpp or OData import to bring existing Project Online data over cleanly
• You want AI assistance that is grounded in your project's actual schedule and risk history, not a general-purpose sidebar
• You operate in a regulated industry or geography where data residency or self-hosted deployment is a requirement

For the broader PMO replacement landscape, see Best Microsoft Project Alternatives in 2026. To understand what the Project Online retirement timeline means for your migration planning window, see Microsoft Project Online End-of-Life: Timeline and Decisions. The interactive feature matrix and side-by-side decision tool for this comparison live on the Onplana vs Microsoft Planner landing page: same content, structured for at-a-glance scanning rather than long-form reading.

Run the free Migration Preview Upload any .mpp file and get a feature-by-feature compatibility report against Onplana: which schedule data moves cleanly and which requires manual recreation. No signup required. → Open Migration Preview

Microsoft Project Online™ is a trademark of Microsoft Corporation. Onplana is not affiliated with Microsoft.