Best Online Booking Software for Small Businesses in 2026: 5 Tools Compared (With Real Prices)
Calendly, Acuity, Setmore, SimplyBook.me and Cal.com compared for small businesses: real 2026 prices from official pages, free plans, no-show tools, and which one fits your business.
Vincent Inferido··10 min read
Research-based, not hands-on tested · prices and features checked on official sources on . See sources
On this page
It's 9:47 PM. A new customer finds your business, decides they want to book… and your only option is "call us during business hours."
By morning, they've booked with someone else. You never even knew they existed.
That's the quiet cost of not having online booking. Customers book when they are ready, and more and more, that's evenings and weekends. The good news: fixing it costs anywhere from $0 to a few dollars a month, and you can be live this afternoon.
I build custom booking systems for clients, and I'll still tell you the same thing I'd tell a friend: start with one of these tools. Here's how to pick the right one.
Quick picks: which booking tool fits you?
The 30-second comparison
| Tool | Free plan | Paid plans from | Pricing model | Best for |
|---|---|---|---|---|
| Calendly | Yes, 1 event type | $10/seat/mo (annual) | Per seat | Meetings and calls |
| Acuity Scheduling | No (7-day trial) | $16/mo (annual), 1 calendar | Per plan, by calendars | Client appointments |
| Setmore | Yes, up to 4 users | $5/user/mo (annual) | Per user | Small teams on a budget |
| SimplyBook.me | Yes, 50 bookings/mo | €11.9/mo (annual) | Per plan, by bookings | Service businesses with staff |
| Cal.com | Yes, 1 user | $12/user/mo (annual) | Per user | Developers and control-seekers |
Checked on official pages on Sep 29, 2026. See Sources.
The 5 tools, reviewed
Calendly
The "just send me your link" standard for booking meetings.
- Best for
- Consultants, coaches, freelancers and sales teams booking calls and meetings.
- Pricing
- Free $0. Standard $10/seat/month billed yearly ($12 monthly). Teams $16/seat/month billed yearly ($20 monthly). Enterprise starts at $15k/year (50+ seats).
- Free plan / trial
- Free forever with 1 event type, 1 calendar connection and one-on-one scheduling.
- Watch out for
- Built for meetings more than service appointments with staff, rooms and packages. Only people who host meetings need seats, not your invitees.
- Extremely easy for you and your clients
- Paid plans connect Stripe and PayPal for payments
- Joins Zoom, Google Meet and Microsoft Teams on paid plans
- Free plan limited to a single event type
- Not designed for salon- or clinic-style staff scheduling
Verdict: The best pick if what you book is conversations. For services with staff and resources, look further down this list.
Acuity Scheduling
Appointment scheduling made for client-based businesses.
- Best for
- Therapists, trainers, consultants, beauty and wellness pros who book clients into services.
- Pricing
- Starter $16/month (1 calendar), Standard $27/month (up to 6 calendars), Premium $49/month (up to 36 calendars), billed annually. Monthly billing is $20, $34 and $61.
- Free plan / trial
- No free plan. 7-day free trial, no credit card needed.
- Watch out for
- The trial is short, so set it up with real services on day one. Prices are in USD and exclude taxes.
- Pricing is per plan, not per user
- Scales from a solo pro to a team with up to 36 calendars
- Built around client appointments rather than internal meetings
- No free plan
- Only 7 days to decide
Verdict: A strong, predictable choice for appointment-based businesses that are ready to pay for a proper tool.
Setmore
A surprisingly generous free plan for small teams.
- Best for
- Small teams (up to 4 people) that need online booking with little or no budget.
- Pricing
- Free $0 for up to 4 users. Pro $5/user/month on annual billing, for unlimited users.
- Free plan / trial
- Free for up to 4 users with unlimited appointments, a booking page, payments and email reminders.
- Watch out for
- SMS reminders, 2-way calendar sync and removing Setmore branding are Pro features. SMS availability varies by country.
- Unlimited appointments on the free plan
- Accept payments from your booking page
- iOS and Android apps included
- Setmore branding on the free plan
- No text-message reminders without Pro
Verdict: The easiest "yes" for a small team. Start free, and upgrade only when you need SMS reminders or calendar sync.
SimplyBook.me
Flat plans that don't punish you for hiring staff.
- Best for
- Salons, clinics, gyms and studios with several staff members and steady booking volume.
- Pricing
- Free €0 (50 bookings/month, 1 provider). Basic €11.9, Standard €24.9, Premium €49.9 per month billed annually (monthly billing up to €59.9 for Premium). Enterprise is custom.
- Free plan / trial
- Free forever plan with 50 bookings a month, plus a 14-day free trial of premium features, no credit card required.
- Watch out for
- Plans are capped by bookings per month (100, 500 and 2,000 on Basic, Standard and Premium), so estimate your volume. Some features are paid add-ons.
- Pricing per plan, not per user, which stays predictable as you hire
- No transaction fees, according to SimplyBook.me
- HIPAA option from the Standard plan for healthcare businesses
- Booking caps mean busy businesses must move up tiers
- So many options that setup takes time
Verdict: The best value once you have a team. Pick your plan by monthly booking volume, not by headcount.
Cal.com
Open-source scheduling you can own.
- Best for
- Tech-savvy teams, agencies and startups that want customization, privacy, or self-hosting.
- Pricing
- Free $0 for 1 user. Teams $12/user/month and Organizations $28/user/month, billed annually.
- Free plan / trial
- Free forever for 1 user with unlimited event types and calendars. 14-day free trial on paid plans.
- Watch out for
- Self-hosting gives you control but means you're responsible for servers, updates and security.
- Open source, and it can be self-hosted
- Free plan includes unlimited event types and payments via Stripe or PayPal
- Organizations plan is listed as SOC 2, HIPAA and ISO 27001 compliant
- More technical than the other tools here
- Team features require a paid plan
Verdict: If you or your developer want full control (or to build booking into your own product), Cal.com is the smartest foundation.
What it really costs: a 3-person team example
Here's the monthly bill for a small service business with 3 staff members taking bookings, on annual billing:
| Tool | Monthly cost | How it's calculated |
|---|---|---|
| Setmore Free | $0 | Free for up to 4 users |
| Setmore Pro | $15 | 3 × $5 |
| SimplyBook.me Basic | €11.9 | Flat plan, up to 100 bookings/month |
| Acuity Standard | $27 | Flat plan, up to 6 calendars |
| Calendly Standard | $30 | 3 × $10 |
| Cal.com Teams | $36 | 3 × $12 |
Before tax. SimplyBook.me prices in euros. Watch the booking caps if you get more than 100 bookings a month.
What actually matters when choosing
- Meetings or appointments? Calls and consultations suit Calendly or Cal.com. Services with staff, rooms and durations suit Acuity, Setmore or SimplyBook.me.
- How does the price grow? Per-user pricing gets expensive as you hire. Per-plan pricing (Acuity, SimplyBook.me) stays flatter, but watch calendar and booking limits.
- Deposits and payments. Taking payment or a deposit at booking is one of the strongest no-show defenses. Check which payment providers each tool supports.
- Reminders. Email is standard. SMS is often a paid feature, and availability varies by country.
- Your calendar. Two-way sync with Google or Outlook prevents double bookings.
- Client data. Booking tools store names, phone numbers and sometimes health information. If that applies to you, look for a data processing agreement and compliance options (for example, HIPAA in US healthcare, GDPR for EU customers).
When off-the-shelf booking isn't enough
These tools cover most businesses. A custom booking system starts to make sense when:
- Your booking rules are unusual (multi-step services, equipment or room juggling, complex pricing)
- Booking needs to live inside your own app, portal or membership site
- You're connecting bookings to a CRM, inventory, or custom reporting
- Per-user or per-booking costs are climbing as you grow
Read Online Booking for Clinics, Salons and Service Businesses: What to Look For for a deeper look at what a booking system should do, and How Much Does a Custom CRM Cost? if you're thinking bigger.
FAQ
What is the best free online booking software?
Setmore's free plan is very generous for small teams (up to 4 users, unlimited appointments). Calendly's free plan works well for one type of meeting, Cal.com is free for one user with unlimited event types, and SimplyBook.me is free for up to 50 bookings a month.
How much does online booking software cost?
Paid plans in this guide start at $5 per user per month (Setmore Pro) and run to about $49 per month for Acuity Premium or €49.9 per month for SimplyBook.me Premium, on annual billing. Many businesses can start on a free plan.
Which booking software is best for salons and clinics?
Look at SimplyBook.me or Acuity Scheduling. Both are built around staff, services and appointments, and both price per plan rather than per user. Setmore is a good free starting point for small teams.
Can online booking reduce no-shows?
Yes. Automatic reminders (especially SMS), clear cancellation policies and deposits at booking are the most common ways businesses reduce no-shows. Check which plan includes each feature.
Is Calendly good for appointment-based businesses?
Calendly shines for meetings and calls. For services with multiple staff, resources and durations, appointment-focused tools like Acuity, Setmore or SimplyBook.me are usually a better fit.
When should I build a custom booking system?
When your booking rules don't fit standard tools, when booking must live inside your own app or portal, or when you need it tightly connected to a CRM or other systems. Try an off-the-shelf tool first so you learn exactly what you need.
The bottom line
- Booking calls and meetings? Calendly.
- Client appointments, predictable pricing? Acuity Scheduling.
- Small team, tiny budget? Setmore's free plan.
- Growing team with staff? SimplyBook.me.
- Want control, or building it into your product? Cal.com.
Pick one tonight, put the link on your website and Google profile, and let the 9:47 PM customers book themselves in.
Need booking built into your own website or app, or connected to your CRM? Send me a message and tell me how your bookings work today. You can also estimate a custom booking system in under a minute.
Sources
Prices and features were checked on these official pages on September 29, 2026: