Adagio vs Harness

Adagio is a web and mobile app for music teachers managing classrooms or studios and keeping students involved between lessons. Teachers can schedule lessons, assign homework, keep class or lesson notes, and track practice time. In the Practice app, students can log sessions, notes, and personal to-do lists. They can also comment, use a social feed, and earn levels and points for practice sessions. Students can opt in to share practice sessions, assigned homework, goals, and notes with teachers. Adagio includes student records, attendance tracking, a student portal, and online payments. Invoices can be created manually or after a completed lesson, with PayPal payment options and email reminders for overdue bills. Its free plan is free; Premium is $5 a month. The Organization Plan supports multiple teachers and classrooms, administrative oversight, and shared class access. Adagio is available on Android, iOS, and the web.

Harness is a web-based calendar and studio management platform for private lesson instructors. Students can use shared scheduling or rescheduling links to choose available times, while families can view lessons, notes and invoices through a student portal. Instructors can customize 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 combine details, lesson history and payment balances, 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 supports up to five students. Professional costs $15 a month and lists unlimited students, automated monthly billing, payment reminders, self-serve scheduling links and priority email support. A 30-day trial is available. The documentation says Harness is in active development.