Odoo

Odoo is a modular business suite: CRM, accounting, invoicing, inventory, e-commerce, HR and more than 40 other apps that share one database and can be switched on one at a time. It exists as an open-source Community edition you host yourself and as Odoo Online, the hosted Enterprise version. For small businesses the one thing to know is that you can run a single app free forever and add the rest when you need them.

Where does Odoo fit for a growing SME?

Pricing: a one-app free plan, then the Standard plan at about $25 per user per month for the whole suite (Odoo pricing, August 2026). Every user pays once regardless of how many apps they use.

The modular approach means a company can start with CRM, add invoicing in month three and inventory in year two without migrating. The trade-off: individual modules are shallower than specialist products, and larger implementations usually involve a partner.

For the alternatives, read Choosing an ERP for Your SME, our Business Central vs ERPNext vs Dynamics 365 F&O comparison and the Finance & ERP category.

Who should skip it

Businesses that only need accounting will find QuickBooks or FreshBooks simpler. Organisations wanting an open-source ERP with no per-user fee at all should compare ERPNext.

Research-based listing — not hands-on tested by Digital4All; details as of September 2026.

What reviewers say

Reviewers agree on Odoo's appeal, one database under dozens of apps, and on its risk, which is that cost and complexity grow with every app and customisation.

• Forbes Advisor's ERP ranking places Odoo first at 4.6/5 as its pick for startups and small businesses, citing an affordable entry point, connected apps and room to grow. (Forbes Advisor, Mar 2026)
• Forbes Advisor's standalone review is more measured at 3.6/5: it praises integrating sales, accounting, HR and marketing in one open-source platform, but notes the free plan allows only one app, the annual discount applies only to the first year and pricing does not adjust automatically as headcount changes. (Forbes Advisor, Jun 2025)
• TechRadar reviewed only the Odoo website-builder app and rated it 2.5/5, finding numerous integrated business apps but a product that can get very expensive as functionality is added and is short on features and widgets. (TechRadar, Apr 2021)
• Capterra users rate Odoo 4.2/5 (1,327 reviews, Sep 2026); all-in-one integration and modular flexibility lead the praise, while unresponsive support, implementation complexity and costly version upgrades after heavy customisation are the recurring complaints. (Capterra, Sep 2026)

Consensus: strong fit for a small business that wants one suite and will grow into it; the sources disagree on how quickly the per-app, per-user model becomes expensive, and Capterra reviewers are the most critical of support and upgrade costs.