Comparison
OS/ alternative: OS/ and troi ai·on compared
A structured option for project-based companies and professional services organizations
As of November 2026, 314 OS GmbH, headquartered in Berlin, offers with its platform “OS/” cloud-based agency software aimed at agencies, consultancies, studios and growing groups of companies. It offers a direct API connection to DATEV Unternehmen online and native support for e-invoices.
How do OS/ and troi ai·on compare in structure and control?
| Criterion | OS/ | troi ai·on |
|---|---|---|
| System category | Cloud-based software for agencies and studios | ERP and PSA software as a service, with AI that learns from your own projects |
| DATEV and e-invoicing standards | ✓ Direct API to DATEV Unternehmen online and native e-invoicing | ✓ DATEV-compliant export, including for DATEV Unternehmen Online, and e-invoices in ZUGFeRD and XRechnung format (Intelligence plan) |
Why do an established vendor and AI that learns from your projects make a difference?
AI that learns from your own projects
troi ai·on looks at how comparable work ran on finished projects and proposes the hours for a new quote line. You see the proposal and decide whether to keep it. This is part of the Intelligence plan. The AI learns only from your organization’s own offers, projects and decisions.
Data hosted in the EU
troi ai·on is software as a service. Data is hosted in the EU, in Austria, with troi’s hosting partner Digimagical on 100 percent green electricity. troi is GDPR compliant.
An established vendor from Munich
troi GmbH was founded in 2001 and is based in Munich. Across troi five and troi ai·on, troi has more than 13,500 users. troi ai·on is the new, adaptive generation of the product.
Plans that build on each other
Core covers clients and suppliers, time tracking with AI, offers, and mail and calendar. Intelligence adds absences and leave, e-invoices, DATEV and Personio, and advanced AI agents. Performance adds projects, open items and dunning, bank connection, and workflows and SSO. Each plan has one price, with seats included.
Figures from one record
Working hours and overtime are reported in every plan. Revenue, contribution and margin by client, project and service come with the Intelligence plan. Project status, budget consumption and remaining effort come with project structures in the Performance plan. A question can be asked in a sentence, by text or by voice.
Which organizations gain most from switching?
- Growing consultancies, digital service providers and creative agencies that want an AI that learns from their own finished projects and, in the Intelligence plan, proposes the hours for new quotes.
- Owner-managed companies and larger organizations that prefer an established vendor: troi was founded in 2001 and is based in Munich.
What do teams ask about DATEV, e-invoicing and the vendor?
Does OS/ offer an integrated DATEV connection?
Yes. As of November 2026, the product descriptions of OS/ show a direct interface to DATEV Unternehmen online via the DATEV API. This allows automated data exchange and the transfer of receipt data directly from the system.
Does OS/ support the creation of legally compliant e-invoices?
Yes. As of November 2026, the creation of digital invoice formats is listed in the feature overviews of OS/ as a native part of the billing module, so that legal requirements can be covered directly in the billing process.
Who is behind the development of OS/?
As of November 2026, the OS/ system is operated by 314 OS GmbH, with headquarters in Berlin.
How do you make a sound decision for your next growth phase?
Choosing ERP software sets the administrative course for the coming years. Compare what each system documents for DATEV, e-invoicing, hosting and the use of AI. Talk to us to check this in a demo.
