Choose Seido if you are an agency with 50 units or more, with a multi-user team and a need to centralise your incoming channels.
Choose Rentio if the rental application workflow (screening, selection, lease signing) and the tenant portal are your primary use cases.
Both offer a modern tenant portal. The choice depends on the size of your team and your operational complexity.
Rentio at a glance
Rentio is a Belgian software solution founded in 2018, based in Rijmenam (Bonheiden), originally geared towards independent landlords and today positioned towards real estate professionals. Its strength is the modern tenant portal and the rental application workflow (screening, selection, lease signing).
When Rentio is a good choice
- You regularly onboard new tenants and the application workflow (screening, viewing, lease) is your primary use case.
- You want an end-to-end digital lease: contract generator, electronic signature, digital rental deposit and MyRent registration.
- Your portfolio is mainly in Flanders, where Rentio is well established.
When Seido is a better fit
- Your portfolio exceeds 50 units and several team members need to coordinate interventions.
- Requests come in through several channels (WhatsApp, email, phone) that you want to centralise.
- You need AI triage to automatically qualify requests and a structured service-provider portal.
Feature-by-feature comparison
| Seido | Rentio | |
|---|---|---|
| Multi-channel centralisation (WhatsApp, email, SMS, phone) | Yes, WhatsApp Business, IMAP email, SMS gateway, phone transcription | Limited, communication via the in-app chat |
| AI request triage | Yes, 15 categories, 3 urgency levels, manager validation | Not advertised |
| Dedicated service-provider portal | Yes, dedicated, no relay email | Limited, task assignees and partner network |
| Tenant portal | Yes, guided reporting with photo | Yes, tenant app (payments, chat, issue reporting) |
| Integrated accounting | Not native, external accounting integration | Via integrations (Exact Online, EenvoudigFactureren), owner reports and reminders |
| Legal document generation | Limited, in development | Yes, contract generator and digital rental deposit |
| Main market | Belgium FR/NL + France | Belgium NL/FR |
| Pricing model | Per unit, annual (from EUR 50/unit/year excl. VAT) | On request (not published) |
| Interface languages | FR, EN, NL | NL, FR, EN |
Frequently asked questions
Does Seido replace Rentio for tenant applications?
No, Seido does not yet handle the rental application workflow (screening, viewing, lease). If that is your primary use case, Rentio remains a better fit.
Can you migrate from Rentio to Seido?
Yes for core data (units, leases, contacts) via Excel/CSV import. Applications in progress on Rentio should be finalised before migration.
How do the prices compare?
Seido: from EUR 50/unit/year excl. VAT, billed annually. Rentio: no pricing published on its website at the time of this comparison, communicated on request. Compare on your actual portfolio.