Practical guide
A Square Appointments alternative for salons whose clients message on WhatsApp.
If your clients book and ask questions on WhatsApp, Nexis Business OS is a Square Appointments alternative that puts a shared WhatsApp inbox with AI replies on your own number next to branded booking, client records, deposits, gift cards and stock, with the payment provider of your choice. Nexis Business OS combines online booking, a bio site, a client CRM, a WhatsApp team inbox with an AI assistant, an online store, stock and checkout, café menu and orders, online payments and finance. Starter is $49.99 a month and Pro is $149.99 a month, with a 7-day free trial of Starter and no payment at signup.
7-day free trial of the Starter plan with 150 free AI tokens. After the trial, choose Starter at $49.99 USD/month (200 AI tokens a month) or Pro at $149.99 (750 AI tokens a month).
Is this the right workflow for you?
Square Appointments offers a free plan and paid plans per location, books through a free Square booking site or your own website, takes card payments through Square, and its Square Assistant lets clients confirm, cancel or reschedule by message (squareup.com, US pages, October 2026). Plans and fees change and can differ by country, so confirm the current Square Appointments offer on its own website. If you already run your shop and card terminals on Square and your clients are happy with SMS, compare that convenience against having WhatsApp and AI in one place.
Follow the setup and decision checklist
- 01Choose your own payment provider
Nexis Business OS works with Stripe, PayPal, CloudPayments, YooKassa or Freedom Pay, paid straight to your own account, and records local methods such as Kaspi on every plan. You are not tied to one card processor.
- 02Bring WhatsApp into one team inbox
Connect your own WhatsApp number once by QR code. New client messages arrive in a shared inbox, the AI assistant answers prices, free times and bookings in your tone, and hands anything it should not handle to a named person on your team. AI tokens are included every month: 200 on Starter, 750 on Pro.
- 03Keep the client relationship on your brand
Clients book on your own BioSite with your services, prices and team, and get WhatsApp confirmations with YES / NO from your number. Online deposits go to your own account through the provider you connect. There is no marketplace and no commission on new clients.
- 04Compare the real monthly total
Nexis Business OS is a flat price per account, not per booking: Starter $49.99 a month for up to 2 people, Pro $149.99 a month for up to 5 people and 3 locations, with 20% and 25% off on annual billing. Add up what you pay Square Appointments today, including any per-staff, per-message, add-on and payment fees, at your own volume.
- 05Test with one real week
Use the 7-day free trial of Starter: set up your services, connect WhatsApp, make a test booking with a deposit and let the AI answer a few real questions. Keep your current system until the week convinces you.
Test the complete journey
See what your team receives after the customer acts.
Use a sample enquiry or appointment in your workspace. Check the customer record, internal schedule and next task. Verify external messages and CRM transfers in the connected service itself.
A proposed workflow change
An operational example to evaluate in your trial, not a customer case study or a promise of results.
Without a connected process
Bookings and client history in Square Appointments, WhatsApp on someone’s phone and payments and stock elsewhere.
With the Nexis Business OS workflow
Booking, client records, a WhatsApp inbox with AI, deposits, payments and stock in one workspace under your own brand.
Check before you launch
- Confirm on the Square Appointments website which plan, fees and add-ons apply to your business and country today.
- Export your client list from your current system and import a small test group first; importing works on every plan.
- Connect your payment provider (Stripe, PayPal, CloudPayments, YooKassa or Freedom Pay) and test one deposit.
- Give the AI assistant your price list and policies, then ask it the questions your clients ask most.
Questions about this workflow
What is a good Square Appointments alternative?
If your clients book and ask questions on WhatsApp, Nexis Business OS is a Square Appointments alternative that puts a shared WhatsApp inbox with AI replies on your own number next to branded booking, client records, deposits, gift cards and stock, with the payment provider of your choice.
Does Nexis Business OS reply to clients on WhatsApp with AI?
Yes. Connect your own WhatsApp number once by QR code. The AI assistant answers prices, free times and bookings in your tone and hands anything it should not handle to your team. AI tokens are included every month (200 on Starter, 750 on Pro).
Does it work with WhatsApp?
Yes. Connect WhatsApp once by QR code. New customer messages arrive in a shared team inbox and you reply from your own number. Booking confirmations and reminders go out automatically on every plan. Instagram messages do not come into Nexis.
How much does Nexis Business OS cost?
Starter is $49.99 a month ($39.99 a month billed annually) and Pro is $149.99 a month ($112.49 a month billed annually). Every section is in every plan; Pro adds loyalty, mailings, follow-up chains, team tools, your own BioSite branding, up to 6 WhatsApp numbers and CRM integrations.
Do I need a card to try it?
No. The 7-day free trial of Starter needs no payment at signup.
Connect the next part of your customer journey.
Continue reading
Try it with one real workflow.
Start with a sample service and appointment. Check the result with your team before switching your day-to-day process.
7 days free. No payment at signup. Subscription required afterward.
Published by NexisDigital · Product information reviewed .