Odoo vs Sellsy Comparison
Compare Odoo vs Sellsy features, pricing, and more.
Last updated: November 2026
Odoo
7.2/10
Odoo is an open-source business suite whose CRM app handles leads, pipelines, calling, and reporting for small and mid-sized companies, with ERP modules available alongside it.
Sellsy
5.8/10
French all-in-one CRM and lead-to-cash suite that combines sales pipelines, quotes with e-signature, invoicing, e-invoicing, marketing, and cash management for SMEs.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 7.2/10 | 5.8/10 |
| Customization | 9/10 | 6/10 |
| Analytics | 7/10 | 6/10 |
| Integration | 8/10 | 6/10 |
| Support | 5/10 | 7/10 |
| Ease of Use | 5/10 | 5/10 |
| Security | 7/10 | 7/10 |
| Cost | 8/10 | 5/10 |
| Scalability | 7/10 | 5/10 |
| Pricing | ||
| Free plan | Yes | No |
| Cheapest paid plan | €31/user/mo Standard | €35/user/mo Sales Standard |
| Estimated cost for 10 users | Free One App Free | €350/mo Sales Standard |
| Features | ||
| Collaboration | ||
| Contact Management | ||
| Integrations | ||
| Lead Management | ||
| Marketing Automation | ||
| Mobile Access | ||
| Opportunity Management | ||
| Reporting & Analytics | ||
| Sales Automation | ||
| Built-in Calling | Not listed | |
| Customer Support Management | Not listed | |
Odoo vs Sellsy cost by team size
Odoo costs less at every team size we checked.
| Team size | Odoo | Sellsy |
|---|---|---|
| 1 user | FreeOne App Free | €35/moSales Standard |
| 5 users | FreeOne App Free | €175/moSales Standard |
| 10 users | FreeOne App Free | €350/moSales Standard |
| 25 users | FreeOne App Free | €875/moSales Standard |
| 50 users | FreeOne App Free | €1,750/moSales Standard |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose Odoo
- Has a free plan (Sellsy does not)
- Lower estimated cost for 10 users: Free vs €350/mo
- Higher Customization score (9/10 vs 6/10)
- Higher Cost score (8/10 vs 5/10)
- Better fit for startups (7/10 vs 4/10)
Why choose Sellsy
- Higher Support score (7/10 vs 5/10)
Pros & Cons
Odoo
Pros
- The free plan gives unlimited users on a single app, so a team can run the CRM at no license cost.
- CRM data flows natively into Odoo's Sales, Inventory, Invoicing, and Email Marketing apps, so quotes and stock checks happen without third-party connectors.
- Lead tools go beyond the basics, with predictive scoring, quota-based assignment, deduplication, and enrichment.
- It is open source and highly customizable through Studio, the API, or self-hosting.
Cons
- Reviewers often describe the interface and workflows as complex for new users.
- Setup usually needs internal staff or a paid implementation partner.
- Some users report slow performance with large datasets.
- Opinions on support and documentation quality are mixed, and paid support is email-only on weekdays.
Sellsy
Pros
- Quotes convert to invoices without retyping, and quotes can be signed electronically in the same tool.
- Approved French e-invoicing platform included on every plan, ahead of France's e-invoicing reform.
- Data hosted in France, ISO 27001 certified, GDPR compliant, with daily backups.
- French-language chat support on every plan from an in-house team, plus phone support on higher tiers.
- More than 100 marketplace apps, including French accounting software and bank sync with Qonto.
Cons
- 12-month commitment even on monthly billing, and a 2-user minimum on the bundle.
- Reviewers say the interface is busy and takes about a week to learn.
- Cash management and advanced marketing tiers cost extra on top of per-user licences.
- Built around French accounting rules, so it fits non-French companies less well.
- Users report pricing changes, some invoicing glitches and duplicate contacts from Google sync.
Not sold on either?
Frequently Asked Questions
Odoo scores higher on our CRM criteria: 7.2/10 against 5.8/10 for Sellsy. The largest gap is in Cost: 8/10 for Odoo and 5/10 for Sellsy.
Odoo costs less for 10 users: free on its One App Free plan, against about €350/mo on its Sales Standard plan for Sellsy, billed monthly.
Odoo has a free plan; Sellsy does not list one.
Odoo is the better fit for startups: we rate it 7/10 for them, against 4/10 for Sellsy.
