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ERP · head to head

Deltek vs Odoo Inventory

Deltek logo

Deltek

ERP

Project-based business management and accounting software

From
$1500/month
Rated
-
Full reviewWebsite
Odoo Inventory logo

Odoo Inventory

Inventory

Open source inventory management module

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Odoo Inventory has a free tier, so it costs nothing to try first.
  • Each has a real cost: Deltek not one product but a portfolio, including Costpoint, Vantagepoint, Maconomy, Ajera, ComputerEase, GovWin IQ and Replicon, so the right choice depends on the industry before the feature set; Odoo Inventory the One App Free plan covers a single app, so using Inventory alongside another Odoo app moves the account onto a paid plan
  • They diverge on capability: Deltek covers Project accounting, Odoo Inventory covers Inventory management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Deltek and Odoo Inventory actually diverge.

Attributes where Deltek and Odoo Inventory differ
AttributeDeltekOdoo Inventory
Starting price$1500/monthFree
Free tierNoYes
PlatformsCloud, Web, MobileWeb, Mobile app, Cloud/On-premise
CategoryERPInventory
Founded19832005

Identical on both: pricing model (subscription), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Deltek

  • Project accounting
  • Resource management
  • Time and expense
  • Financial reporting
  • Government compliance
  • Office 365
  • Outlook
  • Tableau

Only in Odoo Inventory

  • Inventory management
  • Barcode scanning
  • Multi-warehouse
  • Automated replenishment
  • Odoo ERP modules
  • E-commerce
  • Manufacturing
  • Accounting

Both cover

  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Deltek

  • Government contracting project accounting and compliance managementnot Odoo Inventory
  • Aerospace and defense ERP with FAR/CAS requirementsnot Odoo Inventory
  • Architecture and engineering firm resource planning and billingnot Odoo Inventory
  • Construction cost tracking, labor management, and job costingnot Odoo Inventory
  • Professional services resource scheduling and utilizationnot Odoo Inventory

Odoo Inventory

  • Tracking stock across multiple warehouses and locationsnot Deltek
  • Running receipts, deliveries and internal transfersnot Deltek
  • Connecting inventory to Odoo sales, purchasing and manufacturingnot Deltek

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Deltek

  • Not one product but a portfolio, including Costpoint, Vantagepoint, Maconomy, Ajera, ComputerEase, GovWin IQ and Replicon, so the right choice depends on the industry before the feature set
  • Pricing is not published anywhere and requires contacting sales
  • Built around project-based industries such as government contracting, architecture and engineering rather than general business

Odoo Inventory

  • The One App Free plan covers a single app, so using Inventory alongside another Odoo app moves the account onto a paid plan
  • The Standard plan at $16.90 per user per month is restricted to Odoo Online hosting
  • Odoo.sh and on premise hosting require the Custom plan at $25.50 per user per month
  • Odoo Studio, multi company management and external API access require the Custom plan
  • Billing is per user, defined as any employee with backend access to create, view or edit documents
  • The advertised discounted rates apply for the first 12 months, after which the list rates of $21.10 and $31.90 per user per month apply

Pricing, plan by plan

Deltek

$1500/month
  • Vantagepoint$1500/month
    • Project accounting
    • Professional services
    • Resource management
  • Vantagepoint Enterprise$3500/month
    • Advanced features
    • Multi-entity
    • Advanced analytics

Odoo Inventory

Free
  • CommunityFree
    • Open source
    • Basic features
    • Community support
  • Standard$20/month
    • Full features
    • Hosting included
    • Email support
  • Custom$40/month
    • Customization
    • Studio access
    • Priority support

Which should you pick?

Choose Deltek if

  • You need project accounting.
  • You work on Cloud, Web, Mobile.
  • You also want resource management.
Deltek review

Choose Odoo Inventory if

  • You need inventory management.
  • You want to start without paying.
  • You work on Web, Mobile app, Cloud/On-premise.
  • You also want barcode scanning.
Odoo Inventory review

Questions people ask

Is Deltek or Odoo Inventory better?
Neither clearly leads. Deltek starts at $1500/month and Odoo Inventory at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Deltek or Odoo Inventory?
Odoo Inventory has a free tier; the other does not. Paid plans start at $1500/month for Deltek and Free for Odoo Inventory.
Does Deltek or Odoo Inventory run on more platforms?
Deltek runs on Cloud, Web, Mobile. Odoo Inventory runs on Web, Mobile app, Cloud/On-premise.
Can I use Odoo Inventory for free?
Yes. Odoo Inventory has a free tier, so you can try it without paying. Deltek starts at $1500/month.
What is Deltek best used for?
Deltek is most often used for government contracting project accounting and compliance management, aerospace and defense erp with far/cas requirements, architecture and engineering firm resource planning and billing, construction cost tracking, labor management, and job costing. Of those, government contracting project accounting and compliance management and aerospace and defense erp with far/cas requirements are not what Odoo Inventory is typically brought in for.
What can Deltek do that Odoo Inventory cannot?
Deltek covers Project accounting, Resource management, Time and expense, Financial reporting. Odoo Inventory covers Inventory management, Barcode scanning, Multi-warehouse, Automated replenishment. Both handle Web support.

Answered from the vendors’ own pages

Deltek: How much does Deltek Costpoint cost?

Deltek does not display pricing for Costpoint or other products on its website. Enterprise ERP pricing requires contact with Deltek sales.

Source
Odoo Inventory: How much does the Odoo Inventory app cost?

The Odoo Inventory app is free, forever, with unlimited users at no cost. Additional costs only apply if you install other applications in the Odoo suite.

Source
Deltek: What is the cost of Deltek Vantagepoint for architecture firms?

Deltek does not publish Vantagepoint pricing on its website. Pricing depends on firm size, employee count, and feature requirements.

Source
Odoo Inventory: Do I need to pay to use Odoo Inventory?

No, Odoo Inventory is completely free with no credit card required to start. The free trial and app remain free indefinitely.

Source
Deltek: Do Deltek cloud ERP solutions charge per user?

Deltek offers cloud ERP products but does not disclose per-user, per-month, or subscription rate information on its public website.

Source
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