Smily, formerly BookingSync, has been part of Guesty since 17 September 2026. This comparison sets it against Nowistay, an independent French PMS founded in 2024: Smily AI's Smart Replies vs an AI co-host that replies on its own, a commission with a monthly minimum vs a fixed EUR 12 per property, channels, and how to switch. Smily facts checked on smily.com and guesty.com on 8 October 2026.
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Get started nowSmily, the French PMS and channel manager formerly called BookingSync, has been part of Guesty since 17 September 2026. Nowistay is an independent PMS and channel manager founded in 2024 in Bordeaux. Both connect your listings to the main booking platforms. They differ on three points that matter to a host or a concierge: how guests are answered, how you pay, and who decides the roadmap.
Competitor facts checked on smily.com and guesty.com on 8 October 2026.
Smily started as BookingSync, a channel manager its founder built in 2005 for his family’s rentals. It opened to paying customers in 2010 and was renamed Smily in 2022. Its offer covers a channel manager, a customizable direct booking website, revenue management tools, payment solutions and Smily AI. It connects to Airbnb, Booking.com, Expedia, Abritel-Vrbo, Google Vacation Rentals, HomeToGo and Marriott Homes & Villas, as well as French channels such as PAP Vacances, Maeva and platforms serving works councils. A B2B App Center and an open API extend it.
On 17 September 2026, Guesty announced that it had completed its acquisition of Smily. The press release says the two companies will combine product, engineering and customer support for the French market and bring Guesty’s AI tools to it. It announces nothing about prices, contracts or a migration timeline for existing Smily accounts.
Nowistay is a PMS and channel manager with an autonomous AI co-host built in. It was founded in 2024 in Bordeaux and connects to Airbnb, Booking.com, Vrbo and Expedia with real-time sync of calendars, rates and bookings.
The AI co-host answers guests 24/7 in 90+ languages from your property information, your welcome guide and the details of each booking, and it checks early check-in and late checkout requests with your cleaning team before confirming. The same subscription includes a digital welcome guide with an upsell shop, smart lock automation, cleaning and team coordination, direct booking with Stripe, AI Pricing for dynamic pricing, and an official ChatGPT app and Claude connector. Identity checks cost EUR 2 each, and PriceLabs remains available as an optional integration (separate PriceLabs subscription).
Smily AI generates contextual replies to guest messages and reviews, and its Emergency Detection flags urgent situations so your team can react faster. Smily’s AI page does not say whether those replies are sent without your approval, so ask for a demo if that matters to you. Guesty has also said it will bring its own AI tools to the French market; which ones will reach Smily accounts, and at what price, has not been announced.
Nowistay’s AI co-host is autonomous by default on the AI Channel Manager plan. It reads each message, checks the booking, the property information and the welcome guide, and replies directly to the guest, in about a minute on average and in the guest’s language. When a situation needs a human, it alerts you and leaves the conversation to you.
You decide how much it does. Draft mode lets the AI write each reply without sending it: the reply is emailed to you, with the actions it would have taken listed as simulated. Off-hours keep it silent at times you choose, and you can pause it on a single conversation. Guests in the EU and EEA receive a one-time notice that they are talking to an AI.
Smily’s model is mainly a commission on bookings, with a monthly minimum whatever your booking volume, plus optional services. It publishes neither the commission rate nor the minimum, so your bill follows your revenue and you need a quote to compare.
Nowistay publishes a fixed price: EUR 12 (USD 15) per property per month, billed monthly, with automatic volume pricing on the whole account: EUR 11 from 5 properties, EUR 10 from 10, EUR 9 from 50 and EUR 8 from 100. The AI co-host, the welcome guide, AI Pricing and the main smart locks are included, and the first month is free, with no credit card. Paid options are billed only if you use them: the AI voice assistant at EUR 10 per month per account, WhatsApp AI messages at USD 0.04 each and identity checks at EUR 2 each.
Dynamic pricing is part of that price: AI Pricing is included, with no add-on and no separate pricing subscription. Smily says it develops no dynamic pricing algorithm of its own and points to PriceLabs, Beyond or Wheelhouse in its App Center, so ask how market-based pricing would be billed alongside your Smily plan.
To compare, ask Smily for its commission rate and monthly minimum at your size, apply them to last year’s booking revenue, and set the result against the Nowistay figure for your portfolio.
Nothing forces Smily customers to move today, and smily.com still sells Smily with its own pricing model. What has not been announced is what matters most to a host or an agency: whether Smily stays a separate product, whether prices, the commission or the minimum will change, whether contracts and support teams stay the same, and which Guesty AI features will reach Smily accounts. The general terms linked from smily.com allow price changes with 14 days’ notice, and content is deleted when an account is cancelled, so export your data before anything changes.
Our guide to Smily alternatives after the Guesty acquisition covers the questions to ask, the exports to download and how to move channels without losing bookings.
Nowistay does not integrate with Smily: it replaces it as your PMS and channel manager, and moving your listings takes minutes.
Guesty completed its acquisition of Smily on 17 September 2026. Smily was formerly called BookingSync and has no link with Smoobu, which belongs to HomeToGo. Nowistay is an independent alternative, founded in 2024 in Bordeaux.
No, Nowistay does not integrate with Smily. It replaces Smily as your PMS and channel manager, and moving your listings takes minutes.
It depends on your booking revenue, because Smily charges mainly a commission with a monthly minimum and does not publish its rates. Nowistay’s price is fixed and public: EUR 100 per month for 10 properties, AI co-host included, with the first month free.
Smily AI offers Smart Replies and Emergency Detection. Nowistay’s AI co-host replies to guests on its own on Airbnb, Booking.com, Expedia, WhatsApp and email, 24/7, on the AI Channel Manager plan.
Yes. AI Pricing, Nowistay’s built-in dynamic pricing, is part of the EUR 12 (USD 15) per property per month AI Channel Manager plan, with no add-on and no separate pricing subscription. Smily says it does not develop its own dynamic pricing algorithms and relies on PriceLabs, Beyond or Wheelhouse for market-based pricing.
Smily is a long-established French PMS with a wide channel list, now part of Guesty, which has not yet announced its plans for Smily’s pricing and product.
Nowistay gives you a published, fixed price per property, an AI co-host that answers guests on its own, and the PMS, channel manager, welcome guide, smart locks and dynamic pricing (AI Pricing) in one subscription: EUR 12 (USD 15) per property per month, down to EUR 8 with volume pricing, first month free. Unless your bookings depend on channels Nowistay does not connect, it is the simpler and more predictable choice.
Move your listings to Nowistay and let the AI co-host answer your guests 24/7, at a fixed price per property. First month free, no credit card required.
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Over 25 years of experience in real estate investing and a recognized expert in short-term rental automation. Bassel helps property managers increase revenue, cut operating costs, and deliver 5-star guest experiences using AI-powered tools he built from firsthand hosting experience.
