OmniStay or Avantio? · Comparison updated on 25 October 2026
Avantio is all-in-one software for professional holiday rental managers, which its publisher recommends from 20 properties, with a monthly minimum. OmniStay is for property managers of every size and for hosts, from a single listing, at €9.90 per listing per month. Here is what each one offers, point by point.
Feature by feature
What Avantio offers according to its own website, reviewed between 21 and 25 October 2026, compared with OmniStay as it is live today.
| Feature | OmniStay | Avantio |
|---|---|---|
| Property manager’s showcase website, to find owners | Add-on |
Partly Booking website for guests; its page states that SEO and campaigns also help attract owners’ attention |
| WhatsApp and SMS messages to guests | Add-on |
Yes WhatsApp (business profile) and SMS from the unified inbox |
| Instagram and TikTok posts ready every week | Add-on · Beta |
No |
| AI assistant that replies and acts in the guest’s language | Add-on |
Yes AI assistant for messaging |
| Owner portal: income and statements in real time | Portal included |
Yes Owner area and statements |
| Referrals: 30 to 50% of your referred clients’ subscription, every month | Up to 50% |
Partly Referral programme: a €500 discount per referred agency that stays a customer for at least 3 months |
| Monthly statement and report for each owner | Every month |
Yes Automated management reports for owners, with payouts and invoicing |
| Run the software from ChatGPT, Claude or Gemini | With the AI add-on |
No |
| Entries ready for your accountant | Included |
Yes FEC and Quadra exports, automated entries and bank reconciliation, from the software |
| Cleaning team app | App included |
Yes Operations module: cleaning and maintenance assigned automatically |
| Revenue estimate as a PDF, to win over an owner | PDF in your colours |
No |
| Guest app in 7 languages | Nothing to install |
Yes Online check-in (paid add-on) and Guest Area |
| Tracking the owners you want to sign | Included |
No |
| Pre-check-in and police registration form | Included |
Yes Police registration forms sent from within the software |
| Rental agreement accepted online | Included |
Yes With online check-in (paid add-on): rental agreements generated and signed online by the guest |
| Contracts signed online by owners | Included |
Partly Contracts and payments available to each owner in their Owner Area |
| Security deposits by card hold | Commission-free |
Yes Automated deposits (Avantio Payments and other gateways) |
| Prices and calendar approved by the owner | Included |
Partly Depending on the permissions given, the owner changes rates themselves and adds or edits bookings from their area |
| Extras sold to guests | Add-on |
Yes Additional services offered and sold to guests in the Guest Area |
| Smart locks: one code per stay | One code per stay |
Yes Through partners (igloohome, Akiles…) |
| E-invoices in Factur-X format | Factur-X |
Partly French e-reporting of payments received, transmitted through Invopop |
| A reply ready for every review | Reply ready |
Yes Automatic replies to Airbnb reviews; Vrbo reviews synced |
| Tourist tax calculated, return ready to file | Calculated |
Partly Tourist tax included in French owners’ statements |
| Unified inbox | All in one place |
Yes Airbnb, Booking.com, Vrbo, WhatsApp and SMS |
| Automated messages in the guest’s language | In 7 languages |
Yes Automated messages (Harmony tool) |
| Profitability, targets and forecast per listing | Included |
Partly Portfolio dashboard: revenue, occupancy rate, average nightly rate and booking trends |
| Commission-free direct booking | Add-on |
Yes Website and booking engine, with no Avantio commission; Avantio VRMS subscription required |
| Inspections with photos | Included |
Partly Through Yaago, a partner on its marketplace: cleaning, maintenance and inspections |
| Dynamic pricing | With PriceLabs |
Yes Built-in tool; PriceLabs, Beyond |
| Airbnb and Booking.com | Airbnb · Direct connectionBooking.com · Direct connection |
Airbnb · Direct connectionBooking.com · Direct connection |
| Team invoices issued on their behalf | Included |
Partly Through Turno, a partner on its marketplace: scheduling and payment of cleaning teams |
| Vrbo and Expedia | Vrbo · Direct connectionExpedia · Direct connection |
Vrbo · Direct connectionExpedia · Direct connection Expedia: direct connection (Expedia Group contract required) |
| Linen, stock and laundry | Included |
Partly Bed linen management assigned to teams in the operations module |
| Import from your current software | Automatic |
Yes Assisted migration: an onboarding team transfers properties, rates and bookings |
| Software entirely in French | All in French |
Yes |
| Incidents passed to the right contractor | Included |
Partly Incidents created as tasks and assigned to the team or to an external contractor, notified by automatic email |
| Support in French | 7 days a week |
Yes Team dedicated to the French market, help centre in French |
| Damage and disputes: one file per incident | Included |
Partly Through Truvi (formerly Superhog), a partner on its marketplace: damage protection and incident resolution |
| On a phone | iPhone and Android |
Yes Web app, on all devices |
| API, Zapier and Make | API, Zapier, Make |
Yes API on request (channel manager, website, accounting) |
| Several companies, one login | Included |
Partly For large agencies and property managers: multi-brand, multi-market and multi-currency support |
| Price for 10 listings, per month | €99no commitment | €295 excl. VATsingle subscription, billed monthly |
For 10 listings, €196 less per month with OmniStay, or €2,352 a year.
OmniStay in action
Which one should you choose?
Avantio at a glance
All-in-one software (PMS, channel manager, website and booking engine) for professional holiday rental managers, recommended by its publisher from 20 properties.
What Avantio highlights:
OmniStay at a glance
The software designed by a property manager, for property managers and hosts: everything in French, €9.90 per listing per month.
What we highlight:
Switching from Avantio to OmniStay
Nothing is deleted in Avantio: you stop your subscription once everything is connected.
FAQ
Yes, for short-term rental property managers and hosts: calendar synced with Airbnb, Booking.com, Expedia and Vrbo, automated messages, cleaning, owners, deposits and invoices, in a single piece of software in French, at €9.90 per listing per month. The table above shows what each one offers, according to its own website.
Yes. With an export of your bookings (Excel or CSV) or your properties’ iCal link, OmniStay brings over your properties and bookings, and checks every upcoming booking, one by one. Your listings stay online throughout the switch: the guide tells you in which order to connect Airbnb, then Booking.com, and nothing is deleted in Avantio.
OmniStay costs €9.90 per listing per month, with no commitment and no setup fee: calendar, messages, team, owners and statements included. The AI assistant, the showcase website and payments are available as add-ons, in the app. The demo is free, no account needed.
Comparison drawn up by OmniStay on 25 October 2026, based on Avantio’s public pages (viewed between 21 and 25 October 2026) and the live OmniStay software. “No”: its website doesn’t offer it; “Partly”: partly, or through a partner tool. Offers change: has something changed, or does it look inaccurate to you? Write to bonjour@omnistay.ai and we’ll correct it.
Avantio is a trademark of its publisher (Internet Tourism Solutions SL (Avantio), Valencia, Spain). It is mentioned solely for comparison: OmniStay has no connection with this publisher, and is neither affiliated with nor endorsed by it.