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.
Some of our centres
Centre de Francisation et de Tutorat au Québec
Coeur de Tuteur
Lingua Franca Institute
Mentors Éducation
OnCourse Education
Top Tutorat
Tuteur Match
Tutorat au Top
How much to charge for tutoring, from 5 costs
Work out a tutoring rate from what an hour really costs: tutor pay, payroll costs, unbilled hours, fixed costs and card fees, then the margin you keep.
Oct 25, 2026
Tutoring software reviews: 172 complaints sorted
We read 172 public complaints about tutoring software and sorted them into 17 themes: what owners struggle with most, how we counted, and the full dataset.
Oct 24, 2026
Tutoring invoice template: one line per session
A tutoring invoice template built from the sessions you taught, a month-end routine in four steps, and when tutoring is exempt from GST and QST in Canada.
Oct 18, 2026
What a tutoring parent portal should answer for you
The questions parents send a tutoring centre every week, which ones a parent portal can answer on its own, and the conversations that should still come to you.
Oct 18, 2026
Tutoring payments: credit card fees, e-transfer, autopay
What a card payment really costs a tutoring centre, why Quebec bans card surcharges, when e-transfer beats cards, and how autopay ends the chasing.
Oct 18, 2026
How much to pay tutors, and what a session leaves you
The tutor rate is the biggest line in a tutoring business and the least examined. What one session leaves after pay, payroll costs, card fees and empty chairs.
Sep 19, 2026
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
Tutor invoicing and billing for a tutoring business
Where tutoring centre billing leaks money, what a cancelled package owes back in Quebec, what invoices must show, and what an invoicing system must do.
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.
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