Retell AI describes itself as an AI voice agent platform: a no-code studio and an API for building and running AI agents that make and take phone calls, with chat and SMS agents. It is based in the United States and bills by usage. The facts about Retell AI on this page come from its own site and documentation, read on 2 October 2026.
Solwees is an AI receptionist and booking software for service businesses. It answers phone calls, WhatsApp, Instagram, Telegram, Messenger, website chat and email around the clock, books appointments and reservations into the booking system or CRM the business already uses, sends reminders, and hands the conversation to a person when it should.
| Solwees | Retell AI | |
|---|---|---|
| What it is | SolweesAI receptionist and booking software: a finished product that a business sets up in a dashboard | Retell AIPlatform for building AI voice and chat agents: a no-code studio plus APIs and SDKs |
| Channels | SolweesPhone calls, WhatsApp, Instagram, Telegram, Facebook Messenger, website chat, email. Viber is a paid add-on | Retell AIInbound and outbound phone calls, SMS on US numbers, a website widget with chat, voice and callback. Its documentation says there is no built-in integration with WhatsApp or Messenger, and does not list Instagram, Telegram or email |
| Booking systems and CRMs | SolweesSalons: Altegio, Booksy, Fresha, Treatwell, Bokadirekt, Bookio, Wix Bookings. Clinics: Altegio, Doctra, Tooki. Restaurants: SevenRooms, OpenTable, CoverManager and other systems through Mozrest. Chats are written into Bitrix24. Other systems are connected on request; the list is on the integrations page | Retell AINative: Calendly, Cal.com and GoHighLevel for scheduling; HubSpot, Salesforce, Dynamics 365 and Zoho CRM. Its integrations page has no native connector for salon or restaurant systems; its use-case pages say the agent can read and write to systems such as Boulevard, Vagaro, Mindbody, OpenTable and Resy |
| Languages | Solwees50+ languages in conversations | Retell AI55 languages listed in its documentation, depending on the voice and speech recognition providers chosen |
| Pricing | SolweesPer location per month: Solo €99 (the assistant in chats), Studio €249 (adds phone answering, 100 minutes and outbound calls), Network €499. Free trial: 7 days, no card | Retell AIPay as you go, as of October 2026: $0.07 to $0.31 per minute for voice agents, from $0.002 per message for chat agents, $10 in free credits. Enterprise pricing is custom |
| Who it is for | SolweesService businesses that take bookings: salons, clinics, restaurants, hotels | Retell AICall centres, enterprise and mid-market companies, startups; industries named include healthcare, financial services, insurance and home services |
The Retell AI column repeats what its own site said on 2 October 2026; the pages are linked at the bottom of this page. Solwees prices are as of October 2026.
A voice AI platform and a finished receptionist solve different problems. Three questions show which one a business needs.
A platform gives you the parts: voices, a flow builder, an API. Someone has to design the conversation, connect the booking system and keep it working. Solwees is a finished receptionist that you set up in a dashboard.
On a platform, writing a booking into your system is an integration you build or configure. Solwees connects to the booking systems it works with, and books there.
Platforms usually charge by usage, per minute of a call. Solwees charges per location per month; phone minutes come with the Studio plan or in packs that do not expire.
Solwees answers phone calls, WhatsApp, Instagram, Telegram, Messenger, website chat and email around the clock, in 50+ languages. Every conversation lands in one inbox that the team opens on the web or in the mobile app.
The assistant books appointments and reservations into your booking system and sends reminders. Solwees works on top of the system you have and does not replace it. A business without a supported system can take bookings into the calendar of Solwees itself.
Retell AI is the better choice when voice agents are a project you build: a call centre automating its lines, a company adding phone agents to its own product. You pay for the minutes used, start with free credits and 20 concurrent calls, choose the voice and the language model, and can bring your own telephony. It states HIPAA, SOC 2 Type II, GDPR and ISO 27001.
Solwees is the better choice when you want the result and not the toolkit: calls and chats answered, bookings written into your system through a ready connector, a person called in when needed. The assistant covers WhatsApp, Instagram, Telegram, Messenger, website chat and email along with the phone, and the price is a monthly plan per location rather than a sum of per-minute components.
7 days, no card. The whole platform is open, with up to 100 active clients and 20 call minutes.
Choose it in the list of integrations. From then on the assistant books into the system your team already works in.
WhatsApp, Instagram, Telegram, Messenger, website chat and email, plus a phone number if the assistant should answer calls. Fill the knowledge base with your services, prices and rules.
Try the assistant on one channel or one location first. Move the rest when you are satisfied, and cancel what you no longer need.
Retell AI is a platform for building AI voice agents: you design the agent in a no-code studio or through the API, choose the voice and the language model, and connect telephony and your systems. Solwees is a finished AI receptionist and booking software: one assistant answers calls and chats for a service business and books into the booking system it already uses.
Retell AI, as of October 2026, charges by usage: $0.07 to $0.31 per minute for voice agents, made up of voice infrastructure at $0.055 per minute plus the voice, the language model and telephony, with $10 in free credits. Solwees charges per location per month: €99 for the assistant in chats, €249 with phone answering and 100 call minutes, and minute packs from €39 for 100.
Retell AI does not work with WhatsApp as it comes: its documentation says the platform has no built-in integrations with third-party chat platforms such as WhatsApp or Messenger, and its integrations page lists WhatsApp as an unofficial connector through an automation platform. Its own channels are phone calls, SMS on US numbers and a website widget. Solwees answers WhatsApp, Instagram, Telegram and Messenger directly.
Retell AI books into calendars: its site names Calendly, Cal.com and GoHighLevel for scheduling. Its integrations page has no native connector for salon or restaurant systems; its use-case pages say the agent can read and write to systems such as Boulevard, Vagaro, Mindbody, OpenTable and Resy. Solwees works with Altegio, Booksy and Fresha for salons and with SevenRooms, OpenTable and CoverManager for restaurants, with nothing for you to develop.
Retell AI suits a team that builds voice agents: a call centre, a software company, a startup that needs phone agents inside its own product, with an API, a choice of language models and its own telephony. A salon, clinic or restaurant that wants its phone and messengers answered and its bookings made, with no agent to design or maintain, is the case Solwees is made for.
Facts about Retell AI were checked on 2 October 2026 against its own pages: retellai.com/pricing, retellai.com/integrations, docs.retellai.com/build/create-chat-agent, docs.retellai.com/build/language-support, retellai.com, retellai.com/use-cases/salon-answering-service, retellai.com/use-cases/restaurant-answering-service, docs.retellai.com/deploy/enable-sms.
We run a guided demo on your menu or service list and show how booking would work for your business. No preparation is needed.
