Cal.com is a brilliant open-source scheduling tool with deep configurability and a self-host option. Kaien is the opposite philosophy: opinionated defaults, no self-hosting, INR pricing, narrower scope. If you want to host your own scheduler and configure every behavior, use Cal.com. If you want a working booking page in four minutes and don't want to think about it, that's Kaien.
KAIENFree · ₹199/mo | CAL.COM CLOUDFree · $12/mo | |
|---|---|---|
| CORE SCHEDULING | ||
| Booking pages (free tier) | 2 | Unlimited |
| Multiple time ranges per day | ||
| Buffer time before/after | ||
| Custom event-type colors | ||
| Auto Google Meet | ||
| Routing forms | ||
| Embeddable widget | ||
| REMINDERS | ||
| 24-hour reminder | ||
| 1-hour reminder | Considered | |
| Custom email subject | Considered | |
| Custom workflows | ||
| INSIGHTS | ||
| Analytics dashboard | Considered | |
| Peak-times heatmap | Considered | |
| HOSTING & BILLING | ||
| Self-hostable | ||
| Open source | ||
| Currency | INR | USD |
| GST invoices | Considered | |
| UPI payment | Considered | |
| SETUP | ||
| Time to first booking page | ~4 min | ~15 min |
| Configuration options | Focused | Extensive |
| Branding-free public page | Considered | |
Yes, and that's genuinely valuable for teams who want to self-host or extend the product. Kaien isn't that product. We've made the deliberate decision to be opinionated and hosted, because the alternative is configuration overhead that most solo professionals don't want. If self-hosting matters to you, use Cal.com. If “opinionated and works in four minutes” matters more, use Kaien.
Switching from Cal.com and want a hand? Book a 20-minute setup call.