LessonOS: Class Attendance
Check-in for coaches & gyms
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Free for up to 15 students — one-time unlock for unlimited, no subscription. Offline attendance, check-in, recurring classes, credit packages, and analytics for coaches.
LessonOS is a simple, offline attendance and student management app for trainers, coaches, and small studios. Track class attendance, check students in with a single tap, schedule recurring classes, and manage credit packages — all on your iPhone, with no account and no internet required.
Built for instructors who'd rather teach than fight a spreadsheet, LessonOS keeps your students, classes, and attendance organized in one fast, private app.
WHO IT'S FOR
• Martial arts schools — kungfu, karate, taekwondo, BJJ, and judo dojos tracking student attendance and class credits
• Coaches and private tutors — sports, music, dance, and academic instructors managing class rosters
• Gyms and fitness studios — yoga, pilates, and personal training studios checking members into classes
• Any small training business that wants to replace a paper notebook or spreadsheet — without a costly monthly subscription
KEY FEATURES
• Student management — add, search, and organize students with status and per-student analytics
• Recurring class scheduling — set up weekly classes (e.g. Tue/Thu/Sat) and auto-generate every session
• One-tap check-in — tap to check students into a class, with undo for mistakes
• Attendance tracking — see who attended each class and keep an accurate roster
• Credit packages — sell class passes (10-class card, 20-class card) and deduct credits automatically
• Leave requests — record and approve student absences and make-up credits
• Attendance analytics — spot who's showing up and who's drifting away before they quietly stop coming
• CSV import & export — migrate from a spreadsheet in minutes
• Backup & restore — keep your data safe with iCloud backup
• Multiple branches — manage more than one location or training center
• 7 languages — English, Chinese, Japanese, Spanish, Malay, Indonesian, and French
WHY LESSONOS
• Offline-first — works with no internet; your data stays on your device
• No account needed — open the app and start; no sign-up, no email, no password
• No subscription — free for up to 15 students, then a one-time unlock for unlimited. No monthly fees, ever
• Private by design — your student data is stored locally, not held in someone else's cloud
• Fast and lightweight — built for trainers and instructors, not accountants
Whether you run a martial arts dojo, coach a sports team, teach private music or dance lessons, or operate a small fitness studio, LessonOS gives you a clean, offline tool to manage students, take attendance, track check-ins, and sell class credits.
Download LessonOS and bring order to your classes today.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Polish and behind-the-scenes improvements. Thanks for using LessonOS!
The developer, Chumphon Jan Toolseram, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Chumphon Jan Toolseram
- Size
- 5 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 6 more
- English, French, Indonesian, Japanese, Malay, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Business Unlock $29.99
- Pro Unlock $14.99
- Copyright
- © 2026 Chumphon Jan Toolseram