Compare · Coaches and bookings
SME AI Office vs Cal.com
Cal.com is an open-source meeting scheduler with a free plan for one user; SME AI Office is a free Singapore booking website with session packs, PayNow and accounting.
Prices checked 30 September 2026
The short answer
Choose Cal.com if you book meetings and want open-source software you can host yourself, over 100 app connections, SMS notifications, or team routing. Its free plan covers one user with unlimited meetings.
Choose SME AI Office if you are a Singapore coach selling sessions and packs paid by PayNow. Both start free. Cal.com Teams is US$12 a user a month billed yearly (US$144 a year a user). SME AI Office is free, with a small 0.5% fee only on card and automatic PayNow payments.
Side by side
| SME AI Office | Cal.com | |
|---|---|---|
| Price | Free. A small 0.5% platform fee, only on card and automatic PayNow paymentsYour own PayNow QR and cash: no fee | Free for 1 user; Teams US$12 a user a month billed yearlyOrganizations US$28 a user a month billed yearly |
| Free plan | Yes, for good. Unlimited bookings and packs, no card needed | Free forever: 1 user, unlimited meetings and event types |
| How clients pay | Free PayNow QR with amount and reference filled in. Cards through your own Stripe account0.5% on Stripe payments on Free, 0% on Pro 365, plus Stripe's fee | Stripe and PayPal payments on the free plan |
| Reminders | Confirmation emails go by themselves. Reminders are one tap to WhatsApp, which you send | Email and SMS notifications on the free plan |
| Self-hosting | Hosted for you; nothing to install | Open source; can be self-hosted with Docker |
| Your website | A booking website in a White or Black look, plus a blog, on Free | Booking pages; Cal.com branding removed on Teams |
| Accounting and GST | Pack money held as paid in advance, then income per session. GST F5 on Pro 365 | Scheduling only; no profit and loss or GST return |
Only on SME AI Office
- Accounting and GSTPack money held as paid in advance, then income per session. GST F5 on Pro 365
Which one fits
SME AI Office fits when
- You sell sessions and packs in Singapore and want clients to pay by PayNow.
- You want a booking website, weekly slots and packs, not only a meeting link.
- You want pack money, profit and loss and GST in the same system.
Cal.com fits when
- You book meetings and want SMS notifications free.
- You want open-source software you can host yourself.
- A team needs round-robin scheduling and CRM sync.
Free. A small 0.5% platform fee, only on card and automatic PayNow payments.
Questions
Is SME AI Office cheaper than Cal.com in Singapore?
Both start free. Cal.com is free for one user and Teams is US$12 a user a month billed yearly. SME AI Office is free with session packs, weekly slots, a booking website and a free PayNow QR. A small 0.5% fee applies only to card and automatic PayNow payments.
What is a Singapore alternative to Cal.com for coaches?
SME AI Office Personal Coach is built in Singapore for trainers, coaches, tutors and therapists. Clients pick a time that is really free, pay by a PayNow QR with the amount filled in, buy session packs, and ask for the same time every week. It is free, with no cap on bookings.
Can I sell session packs on SME AI Office?
Yes, on the Free plan. Sell a pack such as 10 sessions to use within 90 days, on your booking page or in person. Each booking uses one session, and the money moves into income as each session happens.
Does SME AI Office send SMS reminders like Cal.com?
No. SME AI Office emails confirmations by itself, and a Remind button opens WhatsApp with the message ready for you to send. Cal.com's free plan includes email and SMS notifications.
Can I move from Cal.com to SME AI Office?
Yes. Send us your Cal.com booking link and any client list you have, and we set up your services, hours and clients free. Cal.com stays open until you are happy. WhatsApp us on +65 9613 7676 and we help you move it over.
Cal.com facts are from cal.com/pricing, checked on 30 September 2026. Prices are as shown there. Cal.com is a trademark of Cal.com, Inc.. SME AI Office is not connected with Cal.com.