Why I built Kaien

There is a particular kind of frustration that comes from paying for software that was never designed for you. Not broken software — software that works fine, just not for your context, your currency, your scale. You use it anyway because there is nothing better, and you absorb the cost as a kind of tax on being in the wrong market.

For me, that software was scheduling tools.

The problem with the existing options

I run a small consulting practice out of Pune. For most of the last five years, my scheduling lived in a combination of Google Calendar links shared over WhatsApp, a spreadsheet I updated manually, and the occasional Calendly free trial that I would let lapse when the billing reminder arrived.

The Calendly Standard plan, at the time I last looked seriously, was $10 a month. That sounds reasonable until you convert it: at current rates, roughly ₹830 a month. For a single-person workflow. Billed in dollars, which means your bank adds a foreign currency markup of 2–3.5%, and then there is the question of whether you can claim GST input credit on a foreign software subscription — you cannot, because Calendly does not issue Indian GST invoices.

So the real cost is closer to ₹870–900 a month, with no tax benefit, for a tool that was designed primarily for US sales teams and has features I will never use: Salesforce integrations, round-robin routing, enterprise SSO. The free tier exists but it is genuinely limited — one event type, no customisation, no reminders. It is a trial with no expiry date, not a real free plan.

I tried Cal.com for a while. The open-source version is impressive, but self-hosting it properly takes time I do not have, and the cloud version has its own pricing that does not solve the INR problem. Zcal is simpler but lacks the reminder and buffer features I needed.

None of them were built with an Indian solo professional in mind. They were built for a different market and localised, loosely, for everyone else.

What I actually needed

My requirements were not complicated. I needed:

• A booking page I could share with clients, with my availability pre-set
• Automatic timezone detection, because I work with clients in the US and Europe
• Buffer time between meetings, so I am not jumping from one call to the next
• Email reminders to reduce no-shows
• A price that made sense for a one-person business in India

That last point kept being the problem. Every tool that did the first four things cost more than I wanted to pay, in a currency I did not earn in, with no GST compliance.

Building it

I started building Kaien in late 2024, initially as a personal tool. The name comes from the kanji 海援 — ocean and aid, roughly "help offered across distance." A meeting is a small version of that: two people agreeing to reach each other despite the friction of time and geography.

The first version was rough. It handled basic booking and sent reminders. I used it for three months before showing it to anyone. In that time I noticed a few things:

The buffer feature was the one I used most. I set 10 minutes between every call, and it changed how my days felt. Not because 10 minutes is a lot of time, but because it is enough to close one context and open another. Without it, I was arriving at calls still thinking about the previous one.

The timezone detection mattered more than I expected. I had been manually converting times in my head for years — "they said 2pm EST, so that is 12:30am IST, which means I need to be awake at..." — and having the booking page handle this automatically removed a small but persistent source of error.

The reminders reduced my no-show rate noticeably. Not to zero, but from roughly one in eight bookings to one in twenty. That is a meaningful difference when each booking represents real work.

What Kaien is

Kaien is the tool I built for myself and then decided to make available to others. It is priced at ₹199 a month for the paid tier — Considered — and there is a genuinely free tier called Quiet that covers the basics without a time limit. Both are billed in INR via Razorpay, and both come with proper GST invoices.

It is not trying to be Calendly for India in the sense of matching every feature. It is trying to be the right tool for a specific kind of person: a solo professional, consultant, coach, or freelancer who needs scheduling to work without thinking about it, and who does not want to pay foreign-currency prices for that.

The feature set is deliberately narrow. Scheduling, reminders, buffers, timezone handling, basic analytics. No CRM. No video conferencing built in. No team routing. Those things may come later, but the core product is intentionally small.

A quiet CTA

If you are a solo professional in India who has been making do with free tiers and manual scheduling, Kaien is worth trying. The free tier is real — one booking page, unlimited bookings, email reminders. The paid tier adds multiple event types, buffer controls, and analytics, for ₹199 a month.

There is no sales call, no demo request form, no enterprise tier with a "contact us" button. You sign up, connect your calendar, and it works. That is the whole product.