Blog
Run a better gym.
Stories, playbooks, and lessons from gyms running on Kasratbook. New piece every Wednesday.
Product
The case for face-recognition check-in
Why we shipped on-device face recognition instead of fingerprint scanners — and the privacy trade-offs we made.
Karan Patil·April 11, 2026·6 min read
Operations
Pricing your gym: a 5-step framework
What to charge, when to discount, and how to think about LTV without an MBA. With a free spreadsheet.
Priya Nair·April 4, 2026·10 min read
Engineering
Building Kasratbook in public
A behind-the-scenes look at our weekly ship cadence, monorepo setup, and the deploy pipeline that lets two engineers ship five times a day.
Vikram Joshi·March 27, 2026·12 min read
Marketing
WhatsApp templates that actually convert
The 6 templates we A/B-tested with 50,000 gym members. The winners aren't what you think.
Aditi Sharma·March 19, 2026·7 min read
Customer story
Pulse Fitness scaled from 1 to 4 branches in a year
Arjun Kapoor walks us through the systems that made it possible — including the one mistake he'd undo if he could.
Karan Patil·March 8, 2026·9 min read
Playbook
The end-of-month collections playbook
How to recover 80% of your missed renewals in the first 7 days of the month, on autopilot.
Priya Nair·February 28, 2026·5 min read