OmniStay or Smily? · Comparison updated on 25 October 2026
Smily (formerly BookingSync) brings together a channel manager, a direct booking website and payments for owners and managers, with pricing on request. OmniStay was designed by a property manager, for property managers and hosts, and costs €9.90 per listing per month. Here is what each one offers, point by point.
Feature by feature
What Smily offers according to its own website, reviewed between 21 and 25 October 2026, compared with OmniStay as it is live today.
| Feature | OmniStay | Smily |
|---|---|---|
| Property manager’s showcase website, to find owners | Add-on |
No |
| AI assistant that replies and acts in the guest’s language | Add-on |
Yes Draft replies (never sent on their own) and detection of urgent messages |
| Instagram and TikTok posts ready every week | Add-on · Beta |
Partly Through the Metricool app (App Center): scheduling and publishing social media posts |
| Owner portal: income and statements in real time | Portal included |
Yes Owner portal: bookings, reports and finances |
| WhatsApp and SMS messages to guests | Add-on |
Partly WhatsApp through a third-party app, for example GuestReply |
| Monthly statement and report for each owner | Every month |
Yes Automated revenue reports for owners, available in real time in their portal |
| Tourist tax calculated, return ready to file | Calculated |
Yes Tourist tax to be created as a fee, with a maximum amount per adult per night (French rule) |
| Referrals: 30 to 50% of your referred clients’ subscription, every month | Up to 50% |
No |
| Entries ready for your accountant | Included |
Yes CSV export of payout reports for accounting tools |
| Run the software from ChatGPT, Claude or Gemini | With the AI add-on |
Partly Experimental read-only MCP server (Claude, Codex…), no editing; access on request |
| Profitability, targets and forecast per listing | Included |
Yes Comparative profitability of properties and revenue trends forecast from past data |
| Revenue estimate as a PDF, to win over an owner | PDF in your colours |
No |
| Cleaning team app | App included |
Yes Tasks created from bookings, app for teams |
| Guest app in 7 languages | Nothing to install |
Yes Automated access codes and guides; check-in through partners |
| Tracking the owners you want to sign | Included |
No |
| Rental agreement accepted online | Included |
Yes Rental agreement sent to the guest; each booking keeps the signed agreement |
| Contracts signed online by owners | Included |
No |
| Security deposits by card hold | Commission-free |
Yes Deposit by payment link (Stripe, BookingPay) or through Swikly |
| Prices and calendar approved by the owner | Included |
Partly The owner can create their own bookings from their portal, if you enable it |
| Extras sold to guests | Add-on |
Yes Paid additional services, optional for the guest during booking |
| Smart locks: one code per stay | One code per stay |
Yes Nuki: a unique code per booking |
| E-invoices in Factur-X format | Factur-X |
No |
| Damage and disputes: one file per incident | Included |
Yes Damage Guarantee: claim filed from the booking, with photos; reviewed in about 48 hours |
| Inspections with photos | Included |
Partly Through the third-party app Yaago: inspection report sent by the guest at check-in and check-out, not carried over into Smily |
| A reply ready for every review | Reply ready |
Yes Replies to platform reviews, with AI drafts |
| Team invoices issued on their behalf | Included |
Partly Through the third-party app Turno: cleaner payments and invoices |
| Unified inbox | All in one place |
Yes Airbnb, Booking.com, Abritel-Vrbo, emails and direct website |
| Automated messages in the guest’s language | In 7 languages |
Yes Automatic emails based on bookings |
| Linen, stock and laundry | Included |
Partly Through the third-party app Turno: stock management |
| Commission-free direct booking | Add-on |
Yes Customisable direct booking website |
| Incidents passed to the right contractor | Included |
Partly Emergencies spotted by AI in guest messages and flagged to the team, which decides what to do next |
| Dynamic pricing | With PriceLabs |
Yes PriceLabs, Beyond, Wheelhouse |
| Pre-check-in and police registration form | Included |
Partly Through the Chekin integration (App Center): automated guest registration with the police or authorities |
| Airbnb and Booking.com | Airbnb · Direct connectionBooking.com · Direct connection |
Airbnb · Direct connectionBooking.com · Direct connection Airbnb: direct connection, in eligible areas |
| Software entirely in French | All in French |
Yes Yes (French and English) |
| Vrbo and Expedia | Vrbo · Direct connectionExpedia · Direct connection |
Vrbo · Direct connectionExpedia · Partly Vrbo: direct connection, subject to conditions |
| Support in French | 7 days a week |
Yes Yes: help centre and support in French |
| Import from your current software | Automatic |
No |
| On a phone | iPhone and Android |
Yes iPhone and Android app, included |
| API, Zapier and Make | API, Zapier, Make |
Yes Open API, with webhooks |
| Several companies, one login | Included |
No |
| Price | €9.90per listing per month | Price on request: commission on booking volume, with a monthly minimum per property |
OmniStay in action
Which one should you choose?
Smily at a glance
Holiday rental management software that brings together a channel manager, a direct booking website, payments and messaging, for owners and managers, from a handful of properties to several thousand.
What Smily 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 Smily to OmniStay
Nothing is deleted in Smily: 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 Smily.
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 Smily’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.
Smily is a trademark of its publisher (SAS BookingSync (Smily brand), France). It is mentioned solely for comparison: OmniStay has no connection with this publisher, and is neither affiliated with nor endorsed by it.