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Harness

Harness is a web-based calendar and studio management platform for private lesson instructors.

Place
#15 of 24
Score
6.6
Harness's website

What Harness is

Harness is a web-based calendar and studio management platform for private lesson instructors. Students can use shared scheduling or rescheduling links to select available times, and families can view lessons, notes, and invoices in a student portal. Instructors can set rates, billing schedules, and payers. Calendar tools include attendance and payment tracking, lesson events with assigned rates, drag-and-drop scheduling, and availability annotations. Student profiles bring together contact details, lesson history, and payment balance, with automatic status tracking and intake forms. Finance features include income and expense tracking, invoices, Stripe-powered payments, profit and loss statements, and Schedule C compliant exports. The free Hobby plan is free and supports up to 5 students. Professional costs $15 a month and lists unlimited students, automated monthly billing, payment reminders, self-serve scheduling links, and priority email support. Harness offers a 30-day trial and is in active development. Its documentation says instructor data is isolated at the database level.

Good

  • Student portal shows lessons, notes, and invoices
  • Student profiles include lesson history and payment balance
  • Includes income and expense tracking
  • Stripe powers online payments

Watch out

  • Hobby plan supports up to 5 students
  • Professional costs $15 a month
  • Web platform only

Who it suits

Harness suits private lesson instructors who need scheduling, student records, attendance tracking, and billing tools. The free Hobby plan is limited to 5 students.

Verdict

Harness brings lesson scheduling, student records, and finance tools together for instructors. The free plan has a five-student cap; unlimited students are listed on Professional at $15 a month.

Plans and prices

From Harness's own pricing page, checked 4 Oct 2026.

All about pricing
PlanPriceWhat it gives you
HobbyFreeUp to 5 students · Calendar, scheduling & attendance · Student profiles & family portal · Transaction ledger · Income and expense tracking · Reports and analytics · Create and email invoices
Professional$15 a monthUnlimited students · Stripe payments · Automated monthly billing · Payment reminders · Self-serve scheduling links · Priority email support · $15/month

The facts

Each one read from Harness's own pages, with the date it was checked.

What it does

Audience limit
The free Hobby plan supports up to 5 students; the Professional plan lists unlimited students.checked 4 Oct 2026
Calendar tools
Calendar features include attendance and payment tracking, lesson events with assigned rates, drag-and-drop scheduling, and availability annotations.checked 4 Oct 2026
Data deletion
After account deletion, associated data is permanently deleted within 30 days, with backup copies potentially retained for up to an additional 30 days.checked 4 Oct 2026
Development status
The documentation says Harness Calendar is in active development and new features are being added.checked 4 Oct 2026
Finance tools
The product includes income and expense tracking, invoices, Stripe-powered payments, profit and loss statements, and Schedule C compliant exports.checked 4 Oct 2026
Payment data
Harness says Stripe directly collects and stores full payment card details, while Harness may receive limited card information for records.checked 4 Oct 2026
Payment integration
Online payments are powered by Stripe.checked 4 Oct 2026
Purpose
Harness is a calendar and studio management platform for private lesson instructors.checked 4 Oct 2026
Scheduling
Students can use shared scheduling or rescheduling links to choose available times.checked 4 Oct 2026
Security
The privacy policy says each instructor's data is isolated at the database level and cannot be viewed by other platform users.checked 4 Oct 2026
Student portal
Families can view lessons, notes, and invoices in a student portal.checked 4 Oct 2026
Student records
Student profiles bring together student details, lesson history, and payment balance, with automatic status tracking and intake forms.checked 4 Oct 2026
Support
The contact page lists technical support by email and says Harness aims to respond to all inquiries within 24 business hours.checked 4 Oct 2026

Money

Billing
Instructors can customize rates, billing schedules, and payers.checked 4 Oct 2026

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