BK

Barveen K.

Chief Zen Rider

Small-Business (50 or fewer emp.)

11/10/2025

"Simple, fast, and works the way I've expected"

4.5/5

What do you like best about Cal ID?

I’ve used many scheduling tools in the past, including Calendly, TidyCal, and several others. While most of them seem promising at first, they often become cluttered or overloaded with unnecessary features. Cal ID stands out because it’s straightforward, fast, and reliable. It truly feels like it was designed for people who appreciate the value of their time. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

The UI is quite basic, and I find the workflows difficult to understand at first. It takes some time to get used to how everything works. Review collected by and hosted on G2.com.

What problems is Cal ID solving and how is that benefiting you?

Before using Cal ID, scheduling meetings was a headache. I had to go back and forth in emails or chats trying to find a time that worked for everyone. Sometimes I’d double-book myself or forget to block personal time on one of my calendars. Cal ID solved all of that. It automatically checks all my calendars, shows only the free slots, and lets people book directly without any confusion. No more “Does 3 PM work?” messages. Review collected by and hosted on G2.com.

S

Sumit Mandal .

Chief Product Officer

Small-Business (50 or fewer emp.)

12/18/2025

"Simple, Effective, and Open Source"

5/5

What do you like best about Cal ID?

The simplicity and effectiveness of this tool stand out—it accomplishes exactly what it’s meant to without adding unnecessary complexity. Scheduling becomes quick and seamless, yet it still offers the reassurance and adaptability of an open-source solution that can be self-hosted and tailored to individual needs. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

The learning curve is noticeable, and the overall polish could be improved. Additionally, the product lacks depth and offers fewer features than I expected. Review collected by and hosted on G2.com.

What problems is Cal ID solving and how is that benefiting you?

Cal ID simplifies scheduling by minimizing the need for back-and-forth communication, consolidating all meeting links in one place, and ensuring that availability stays updated across different tools. This not only saves time but also helps avoid double-booking. Additionally, it eliminates reliance on complex, closed-source schedulers by providing a straightforward, open-source solution that my team can easily understand, self-host, and customize as required. Review collected by and hosted on G2.com.

SW

Sanat W.

Senior Graphic Designer

Small-Business (50 or fewer emp.)

12/13/2025

"Effortless Scheduling with Clean UI and Versatile Integration"

5/5

What do you like best about Cal ID?

I use Cal ID primarily to schedule calls for my design agency, Rosch, and it schedules correctly according to my availability. I like that it's very easy to use, and new users can get onboard with Cal ID in no time. The clean UI is easy to read and understand, which is a big plus. I also appreciate the multiple calendar connection options, including iCal and Google Calendars, making it versatile for my needs. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

There is nothing as of now that I don't like, for me its perfect Review collected by and hosted on G2.com.

ZM

Zameer M.

UX Designer

Small-Business (50 or fewer emp.)

11/3/2025

"Easily manage meeting call and bookings"

5/5

What do you like best about Cal ID?

I’ve been using Cal ID for a while and really like how flexible it is. It lets me create unlimited event types and booking links, which makes scheduling different kinds of meetings much easier as our Sales team forward leads which makes it easier for me to manage with this feature. It also syncs with multiple calendars Google, Apple (my personal one) and Outlook too so everything stays in one place and no chances of overlapping. Also, the good thing was it was easy to import all my existing setup from Calendly and get started right away. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

Honestly, I do not have anything to say at this moment but I would suggest to improve UI/UX on the bookings page where you see meetings booked by anyone. I personally like old UI. Review collected by and hosted on G2.com.

What problems is Cal ID solving and how is that benefiting you?

Cal ID has solved a lot of my scheduling headaches. Earlier, using Calendly I felt it bit time consuming process there as well as lacking integration with other tool. Having unlimited event types also helps me handle different kinds of meetings from client demos to team catch ups without setting up new links every time. Review collected by and hosted on G2.com.

G

Verified User

Small-Business (50 or fewer emp.)

6/7/2026

"Simplifies Appointment Booking with WhatsApp Automation"

5/5

What do you like best about Cal ID?

I use Cal ID for appointment booking and appreciate its automation features. It replaces the use of a lot of tools, and I find it helpful that it has reminders and handles all processes. The automatic reminder and WhatsApp automation are particularly valuable to me. The initial setup of Cal ID was very easy. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

nothing Review collected by and hosted on G2.com.

KP

Krishna P.

Faculty

Small-Business (50 or fewer emp.)

3/31/2026

"Extremely Customizable Scheduling Made Easy"

5/5

What do you like best about Cal ID?

I use Cal ID for scheduling meetings and trainings for my startup, and I love it because it's extremely customizable. It helps me with custom workflows, custom URLs, and availability options, which I think are amazing. I like the customization, the URLs, and the workflows. Plus, so far, it's free, which is great. Setting it up was super easy compared to Google Meetings; I just had to sign up and set up my profile to get going. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

None Review collected by and hosted on G2.com.

NV

Nidhi V.

Chief Executive Officer

Small-Business (50 or fewer emp.)

5/19/2026

"Cal ID Has Everything Needed for Professional Booking. Great for new/ growing businesses."

5/5

What do you like best about Cal ID?

Cal ID has all the features required for a professional booking. Very thoughtfully made for individuals as well as businesses. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

It's relatively newer. Robustness still need to be tested. Review collected by and hosted on G2.com.

AC

Amit C.

Software Developer

Computer Software

Small-Business (50 or fewer emp.)

4/24/2026

"Generous Features, Easy Setup, and End-User-Friendly Experience"

5/5

What do you like best about Cal ID?

Generous features, easy setup, and very end-user-friendly. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

Some features are still not working, calendar UI page can be improved further, user profile need to have best UX Review collected by and hosted on G2.com.

SS

Shubham S.

Founder & CEO

Small-Business (50 or fewer emp.)

4/15/2026

"Effortless Scheduling and Seamless Integration"

4.5/5

What do you like best about Cal ID?

I really appreciate that Cal ID makes it easy to organize and schedule meetings. It helps me keep a proper record of all the meetings and schedules. Plus, it reminds me properly about upcoming events. The integration is very easy with all systems, and the interface is user-friendly, which means we can use it very properly. The setup was very easy for our team, consisting of 11 people. Overall, Cal ID has all the features we want, and it works very fine. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

not any Review collected by and hosted on G2.com.

DM

Deepa M.

Special Projects Manager

Human Resources

Small-Business (50 or fewer emp.)

3/3/2026

"Great for Scheduling Calendars"

4/5

What do you like best about Cal ID?

Great for scheduling calendars. Easy to implement. It can be intergrated with your calendars (both Gmail and Outlook). Very seamless performance. Great for small scale as no cost involved. Review collected by and hosted on G2.com.

What do you dislike about Cal ID?

User interface can be a bit better. A bit difficult to use. Review collected by and hosted on G2.com.