Odoo and IN2 Opus ERP are not the same type of offering, but both can connect important business processes in a Croatian company. Odoo is an international business platform with a large set of applications and several hosting options. IN2 Opus ERP is a Croatian modular solution based on Oracle technology, with a long presence in domestic retail, distribution and other industries.
There is no honest answer that one system is always better. The decision depends on processes, existing investments, required integrations, the maintenance model and the team that will put the system into use.
Author's note: MAXCODE implements and develops Odoo. This comparison therefore uses publicly available information from the vendors and lists questions to confirm directly with both providers.
What do official sources say about IN2 Opus ERP?
IN2 describes Opus ERP as an integrated solution for purchasing, wholesale and distribution, retail, inventory, finance and accounting, and human resources. It lists modularity, adaptability, scalability and integration tools for connecting external systems.
According to the official IN2 ERP solutions page, its current technologically more advanced version uses Oracle APEX and has a responsive display for desktops, tablets and mobile phones. IN2 also states more than 30 years of development and use across different industries.
For that reason, earlier claims that Opus is only an outdated desktop application or has no mobile access are not justified. These capabilities should be assessed on the current version actually offered to the buyer.
What do official sources say about Odoo?
Odoo connects applications for CRM, sales, purchasing, inventory, accounting, manufacturing, projects, human resources, e-commerce and other processes. An overview is available in the official Odoo documentation.
Odoo is available in Community and Enterprise editions and through different hosting models. Odoo Online has the least infrastructure maintenance, but does not support arbitrary additional modules. Odoo.sh and self-hosting provide more room for development, with additional technical responsibility. The differences are described in the Odoo hosting documentation.
Odoo or IN2 Opus ERP: comparison by criteria
| Criterion | Odoo | IN2 Opus ERP | What to verify |
|---|---|---|---|
| Business scope | broad set of connected applications | focus on core ERP processes, retail, distribution, finance, inventory and HR | does the proposed version cover your process without manual workarounds |
| Technology | web platform, several hosting models | Oracle technology, newer version in Oracle APEX | browser, devices, infrastructure and upgrade plan |
| Local requirements | depend on version, localisation and implementation | domestic product with experience of local regulation | specific documents, taxes, e-invoices and scenarios you need |
| Integrations | external API and development depend on plan and hosting | IN2 lists integration tools for WMS, webshops and mobile sales | interface documentation, ownership and error monitoring |
| Customisation | Studio, extra modules or development, depending on edition | IN2 lists parametrisation and development of new functions | cost, timing, testing and maintenance during upgrades |
| Cost | publicly listed plans, plus implementation and hosting | price is established through a proposal | five-year cost, not only the initial licence |
| Ecosystem | global vendor, partners and community | domestic supplier and consulting team | availability of knowledge and responsibility for support |
The table is not a scorecard. It shows where to seek evidence in a demonstration and proposal.
How do you compare functions?
Do not compare the number of modules. Prepare several scenarios that begin with a real event and end with a result management or a user needs.
Examples:
- a customer sends an enquiry, then a quotation, order, delivery and invoice are created
- inventory drops below a replenishment rule, then purchasing and receipt of goods are created
- goods are returned, connecting the return, credit note and inventory record
- an invoice arrives electronically, passes control and enters accounting
- management needs a view of margin by customer, product or branch
Ask both providers to show the same scenario with your exceptions. This shows what is standard, what is configured and what requires development.
How do you verify Croatian localisation?
The term "Croatian localisation" is not precise enough. Make a list of what your company actually uses:
- chart of accounts and tax settings
- invoice appearance and content
- e-invoices and fiscalisation
- bank statements and payment files
- statutory and management reports
- retail, wholesale or manufacturing specifics
For every item, ask for a demonstration and test example. A product name alone does not guarantee that a specific configuration is ready for your way of working. The final accounting check should involve the company's responsible people and its accountant.
How do you compare technology and hosting?
Ask where the system runs, who manages the infrastructure, how backups are made and how upgrades are tested. User rights, audit trail, recovery after an error and the method of exporting data also matter.
With Odoo, the answer depends on whether Odoo Online, Odoo.sh or self-hosting is used. With IN2 Opus, confirm the architecture and delivery model of the specific offered version. Do not draw conclusions from experience with an older installation.
How do you compare integrations and customisations?
Both vendors state that integration and customisation are possible. The business risk is not only whether something can be developed, but who will maintain it.
For each important integration, record:
1. which system sends the source data
2. how often data are exchanged
3. how failed transfers are detected and repeated
4. who monitors the integration
5. what happens when one system is upgraded
Also ask about ownership of documentation, data access and the option of changing the provider.
How do you compare total cost?
For Odoo, current subscription plans can be checked on the official pricing page. That is not the price of the entire project. Implementation, migration, development, Odoo.sh and support can be separate items.
For IN2 Opus, public sources describe functions, but the price should be requested through a proposal. Do not assume the licensing, maintenance or upgrade model without written terms.
For both systems, compare:
- licences and hosting
- initial implementation
- migration and integrations
- training and initial support
- annual maintenance
- customisations and upgrades
- the cost of exit or data transfer
When can existing IN2 Opus be a better choice?
If the system already reliably supports key processes, users know it and good support exists, migration solely for a more modern interface can be a poor investment. First measure the specific problems a replacement should solve.
IN2 Opus can have an advantage when the current configuration is already deeply adapted to retail, distribution or other processes that would need to be analysed and rebuilt in a new system.
When can Odoo be a better choice?
Odoo is worth assessing in more detail when a company wants to connect a broader set of processes on one platform, introduce new applications gradually, or needs a hosting and development model that suits its own technical team.
This does not mean that every Odoo implementation is simpler. Broad capabilities make clear scope, good data and control of customisations more important.
What is the next step?
Prepare five to ten real scenarios and send them to both providers. Ask for a demonstration, written scope, assumptions, responsibilities and total cost over several years.
If you are considering Odoo or migration from an existing ERP system, send a description of the process that currently creates the most manual work. You will also receive an honest answer if replacing the system does not have a strong enough business case.