Steven Kallini
Mechanical engineer by trade, hooked on computers since he was a kid, and a principal process engineer for 13 years before Pillar OS. That job was finding where a process quietly leaked time and money, then designing the fix. Pillar OS is the same work, aimed at the admin that eats a tutoring owner’s week.
You cannot calculate last quarter's tutor utilization rate
Utilization is booked hours over available hours, and availability is a setting rather than a history, so every backward looking number is an estimate.
Aug 27, 2026
Billing and invoicing for a tutoring business
Where the money quietly leaks between a booking and a payment, what a cancelled package legally owes back in Quebec, and what your invoices have to show.
Jul 26, 2026
Session packs vs subscriptions: pricing for retention
Drop-ins, packs, and subscriptions each do something different to cash flow and retention. A plain framework for choosing, and when to move a family up.
Jul 8, 2026
The tutoring business software stack, explained (2026)
The five jobs your software has to cover, what breaks when one is missing, and how to tell whether your tools or the gaps between them are eating your week.
Jul 1, 2026Run your whole tutoring business in one place.
Book a 20-minute demo. We’ll map Pillar OS to how you work and help you migrate.