Results at a glance
- 🕒 Hours saved weekly: ~3-5. No more back-and-forth Slack messages for 10–15 external meetings each week
- 👥 Teams using Koalendar: Co-founders and client-facing team
- 🧑💻 Company size: SME
- 📅 Years using Koalendar: ~3 years
- ⭐ Top benefit: “It just makes my life so easy.”
Overview
Bruin is a company with a lean team focused on shipping “your last data platform” for modern analytics teams.
Co-founder Sabri Karagönen oversees product, data, and a good share of sales conversations—which means lots of meetings with clients, partners, and prospects.
The challenge: Too many stakeholders, too much back-and-forth
As a founder handling both technical and business responsibilities, Sabri was juggling:
- His personal calendar
- His work and start-up calendar
- And a second co-founder’s calendar
Before Koalendar, every meeting meant a small but painful negotiation over time. "We were just writing on Slack — ‘Are you available at that time?’ Then waiting, then asking again. It made things very difficult." Says Sabri.
For many meetings, both co-founders had to attend. For others, only one. Coordinating availability between two founders and external people became a time-draining bottleneck.
Sabri’s week involved several dozen meetings, sometimes more — making manual coordination unsustainable.
The solution: One simple scheduling link for two founders and three calendars
As he points out, often both co-founders need to attend the same meeting, but sometimes only one of them does. For their workflow, Koalendar has been a game changer as it lets them share the right availability without the back and forth.
“Finding a good time to meet is very difficult, so the benefit of Koalendar is having a shared calendar, with the right availability, where people can choose their preferred date and time from."
Sabri Karagönen
Co-founder at Bruin
How they use Koalendar
According to Sabri, Koalendar has been key for:
1. Client meetings and sales calls: Clients receive a Koalendar link to a booking page and simply choose a time that works.
2. Mutual co-founder meetings: For meetings requiring both founders, they send a shared availability page that checks both calendars at once.
3. Personal outreach: When Sabri meets someone spontaneously (networking, bonding events, etc.), he simply sends his boking link.
4. CRM organization: Thanks to Koalendar's integration with Zapier, all their meetings are automatically added to their ATIO CRM once booked with Koalendar.
The outcome: Easier scheduling, fewer errors, no back-and-forth
Today, Bruin’s founders run around 10–15 meetings per week through Koalendar.
"Rescheduling is smoother too: They reschedule a lot of times. Sometimes they text me… I tell them, ‘hey, there’s a link, you can reschedule from there."
From his perspective, the biggest wins are:
✅ No more manual Slack back-and-forth just to agree on a time
✅ Reliable shared availability when both co-founders are needed
✅ Their clients use Koalendar smoothly and have never reported a problem: “They never had a problem — which means it worked well.” Sabri says.
✅ One place to manage three different calendars
Conclusion
For a lean start-up with many stakeholders, Koalendar has quietly become the default way Bruin’s founders protect their time, coordinate across multiple calendars, and keep their week under control.
"Koalendar just makes my life so much easier. Anyone can use it — especially if they are busy or have many stakeholders to talk to. Without it, booking times would be a big problem."
Sabri Karagönen
Co-founder at Bruin
